Author: "Jochum J" / Topic: fos: physical sciences - Searchworks@Jio Institute Digital Library Search Results

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80 results on '"Jochum J"'

1. Observation of a low energy nuclear recoil peak in the neutron calibration data of the CRESST-III Experiment

Author: CRESST Collaboration, Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.
Subjects: Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det)
Abstract: New-generation direct searches for low mass dark matter feature detection thresholds at energies well below 100 eV, much lower than the energies of commonly used X-ray calibration sources. This requires new calibration sources with sub-keV energies. When searching for nuclear recoil signals, the calibration source should ideally cause mono-energetic nuclear recoils in the relevant energy range. Recently, a new calibration method based on the radiative neutron capture on $^{182}$W with subsequent de-excitation via single $\gamma$-emission leading to a nuclear recoil peak at 112 eV was proposed. The CRESST-III dark matter search operated several CaWO$_{4}$-based detector modules with detection thresholds below 100 eV in the past years. We report the observation of a peak around the expected energy of 112 eV in the data of three different detector modules recorded while irradiated with neutrons from different AmBe calibration sources. We compare the properties of the observed peaks with Geant-4 simulations and assess the prospects of using this for the energy calibration of CRESST-III detectors., Comment: 8 pages, 4 figures; submitted to Phys. Rev. D
Published: 2023

2. Testing spin-dependent dark matter interactions with lithium aluminate targets in CRESST-III

Author: Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. V., Ferreiro Iachellini, N., Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Felix Wagner, Willers, M., and Zema, V.
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Nuclear Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: In the past decades, numerous experiments have emerged to unveil the nature of dark matter, one of the most discussed open questions in modern particle physics. Among them, the CRESST experiment, located at the Laboratori Nazionali del Gran Sasso, operates scintillating crystals as cryogenic phonon detectors. In this work, we present first results from the operation of two detector modules which both have 10.46 g LiAlO$_2$ targets in CRESST-III. The lithium contents in the crystal are $^6$Li, with an odd number of protons and neutrons, and $^7$Li, with an odd number of protons. By considering both isotopes of lithium and $^{27}$Al, we set the currently strongest cross section upper limits on spin-dependent interaction of dark matter with protons and neutrons for the mass region between 0.25 and 1.5 GeV/c$^2$., Comment: 9 pages, 8 figures
Published: 2023
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3. Neutrinoless Double Beta Decay

Author: Adams, C., Alfonso, K., Andreoiu, C., Angelico, E., Arnquist, I. J., Asaadi, J. A. A., Avignone, F. T., Axani, S. N., Barabash, A. S., Barbeau, P. S., Baudis, L., Bellini, F., Beretta, M., Bhatta, T., Biancacci, V., Biassoni, M., Bossio, E., Breur, P. A., Brodsky, J. P., Brofferio, C., Brown, E., Brugnera, R., Brunner, T., Burlac, N., Caden, E., Calgaro, S., Cao, G. F., Cao, L., Capelli, C., Cardani, L., Castillo Fernández, R., Cattadori, C. M., Chana, B., Chernyak, D., Christofferson, C. D., Chu, P. -H, Church, E., Cirigliano, V., Collister, R., Comellato, T., Dalmasson, J., D Andrea, V., Daniels, T., Darroch, L., Decowski, M. P., Demarteau, M., Meireles Peixoto, S., Detwiler, J. A., Devoe, R. G., Di Domizio, S., Di Marco, N., Di Vacri, M. L., Dolinski, M. J., Efremenko, Yu, Elbeltagi, M., Elliott, S. R., Engel, J., Fabris, L., Fairbank, W. M., Farine, J., Febbraro, M., Figueroa-Feliciano, E., Fields, D. E., Formaggio, J. A., Foust, B. T., Franke, B., Fu, Y., Fujikawa, B. K., Gallacher, D., Gallina, G., Garfagnini, A., Gingras, C., Gironi, L., Giuliani, A., Gold, M., Gornea, R., Grant, C., Gratta, G., Green, M. P., Grinyer, G. F., Julieta Gruszko, Guan, Y., Guinn, I. S., Guiseppe, V. E., Gutierrez, T. D., Hansen, E. V., Hardy, C. A., Hauptman, J., Heffner, M., Heeger, K. M., Henning, R., Hergert, H., Aguilar, D. Hervas, Hodák, R., Holt, J. D., Hoppe, E. W., Horoi, M., Huang, H. Z., Inoue, K., Jamil, A., Jochum, J., Jones, B. J. P., Kaizer, J., Karapetrov, G., Kharusi, S. Al, Kidd, M. F., Kishimoto, Y., Klein, J. R., Kolomensky, Yu G., Kontul, I., Kornoukhov, V. N., Krause, P., Krücken, R., Kumar, K. S., Lang, K., Leach, K. G., Lenardo, B. G., Leonhardt, A., Li, A., Li, G., Li, Z., Licciardi, C., Lindsay, R., Lippi, I., Liu, J., Macko, M., Maclellan, R., Macolino, C., Majidi, S., Mamedov, F., Masbou, J., Massarczyk, R., Mastbaum, A. T., Mayer, D., Mazumdar, A., Mei, D. M., Mei, Y., Meijer, S. J., Mereghetti, E., Mertens, S., Mistry, K., Mitsui, T., Moore, D. C., Morella, M., Nattress, J. T., Neuberger, M., Ngwadla, X. E., Nones, C., Novosad, V., Nygren, D. R., Ondze, J. C. Nzobadila, O Donnell, T., Orebi Gann, G. D., Orrell, J. L., Ortega, G. S., Ouellet, J. L., Overman, C., Pagani, L., Palusova, V., Para, A., Pavan, M., Perna, A., Pertoldi, L., Pettus, W., Piepke, A., Piseri, P., Pocar, A., Povinec, P., Psihas, F., Pullia, A., Radford, D. C., Ramonnye, G. J., Rasiwala, H., Redchuk, M., Riboldi, S., Richardson, G., Rielage, K., Rogers, L., Rowson, P. C., Rukhadze, E., Saakyan, R., Sada, C., Salamanna, G., Salamida, F., Saldanha, R., Salvat, D. J., Sangiorgio, S., Schaper, D. C., Schönert, S., Schwarz, M., Schwartz, S. E., Shitov, Y., Simkovic, F., Singh, V., Slavickova, M., Sousa, A. C., Spadoni, F. L., Speller, D. H., Stekl, I., Sumathi, R. R., Surukuchi, P. T., Tayloe, R., Tornow, W., Torres, J. A., Totev, T. I., Triambak, S., Tyuka, O. A., Vasilyev, S. I., Velazquez, M., Viel, S., Vogl, C., Strum, K., Wang, Q., Waters, D., Watkins, S. L., Watts, M., Wei, W. -Z, Welliver, B., Wen, Liangjian, Wichoski, U., Wilde, S., Wilkerson, J. F., Winslow, L., Wiseman, C., Wu, X., Xu, W., Yang, H., Yang, L., Yu, C. H., Zeman, J., Zennamo, J., Zuzel, G., Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), and HEP, INSPIRE
Subjects: [PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th], Nuclear Theory, nucl-th, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nucl-ex, Nuclear Theory (nucl-th), double-beta decay: (0neutrino), nuclear physics, Nuclear Physics - Theory, neutrino: Majorana, Nuclear Physics - Experiment, lepton number, neutrino: mass, Nuclear Experiment (nucl-ex), Nuclear Experiment, activity report
Abstract: This White Paper, prepared for the Fundamental Symmetries, Neutrons, and Neutrinos Town Meeting related to the 2023 Nuclear Physics Long Range Plan, makes the case for double beta decay as a critical component of the future nuclear physics program. The major experimental collaborations and many theorists have endorsed this white paper., white paper submitted for the Fundamental Symmetries, Neutrons, and Neutrinos Town Meeting in support of the US Nuclear Physics Long Range Planning Process
Published: 2023

4. Liquid argon light collection and veto modeling in GERDA Phase II

Author: GERDA Collaboration, Agostini, M., Alexander, A., Araujo, G. R., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Belogurov, S., Bettini, A., Bezrukov, L., Biancacci, V., Bossio, E., Bothe, V., Brugnera, R., Caldwell, A., Calgaro, S., Cattadori, C., Chernogorov, A., Chiu, P-J., Comellato, T., D'Andrea, V., Demidova, E. V., Di Giacinto, A., Di Marco, N., Doroshkevich, E., Fischer, F., Fomina, M., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenmüller, J., Hemmer, S., Hofmann, W., Hult, M., Inzhechik, L. V., Csáthy, J. Janicskó, Jochum, J., Junker, M., Kazalov, V., Kermaïdic, Y., Khushbakht, H., Kihm, T., Kilgus, K., Kirpichnikov, I. V., Klimenko, A., Knöpfle, K. T., Kochetov, O., Kornoukhov, V. N., Krause, P., Kuzminov, V. V., Laubenstein, M., Lehnert, B., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Manzanillas, L., Marshall, G., Miloradovic, M., Mingazheva, R., Misiaszek, M., Morella, M., Müller, Y., Nemchenok, I., Neuberger, M., Pandola, L., Pelczar, K., Pertoldi, L., Piseri, P., Pullia, A., Rauscher, L., Redchuk, M., Riboldi, S., Rumyantseva, N., Sada, C., Sailer, S., Salamida, F., Schönert, S., Schreiner, J., Schütt, M., Schütz, A-K., Schulz, O., Schwarz, M., Schwingenheuer, B., Selivanenko, O., Shevchik, E., Shirchenko, M., Shtembari, L., Simgen, H., Smolnikov, A., Stukov, D., Sullivan, S., Vasenko, A. A., Veresnikova, A., Vignoli, C., von Sturm, K., Wegmann, A., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zatschler, B., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zschocke, A., Zsigmond, A. J., Zuber, K., and Zuzel, G.
Subjects: High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: The ability to detect liquid argon scintillation light from within a densely packed high-purity germanium detector array allowed the GERDA experiment to reach an exceptionally low background rate in the search for neutrinoless double beta decay of $^{76}$Ge. Proper modeling of the light propagation throughout the experimental setup, from any origin in the liquid argon volume to its eventual detection by the novel light read-out system, provides insight into the rejection capability and is a necessary ingredient to obtain robust background predictions. In this paper, we present a model of the GERDA liquid argon veto, as obtained by Monte Carlo simulations and constrained by calibration data, and highlight its application for background decomposition.
Published: 2022

5. The Double Chooz antineutrino detectors

Author: Double Chooz Collaboration, de Kerret, H., Abe, Y., Aberle, C., Abrahão, T., Ahijado, J., Akiri, T., Alarcón, J., Alba, J., Almazan, H., Anjos, J., Appel, S., Ardellier, F., Barabanov, I., Barriere, J., Baussan, E., Baxter, A., Bekman, I., Bergevin, M., Bernstein, A., Bertoli, W., Bezerra, T., Bezrukov, L., Blanco, C., Bleurvacq, N., Blucher, E., Bonet, H., Bongrand, M., Bowden, N., Brugière, T., Buck, C., Avanzini, M., Busenitz, J., Cabrera, A., Calvo, E., Camilleri, L., Carr, R., Cazaux, S., Cela, J., Cerrada, M., Chang, P., Charon, P., Chauveau, E., Chimenti, P., Classen, T., Collin, A., Conover, E., Conrad, J., Cormon, S., Corpace, O., Courty, B., Crespo-Anadón, J., Cribier, M., Crum, K., Cuadrado, S., Cucoanes, A., D'Agostino, M., Damon, E., Dawson, J., Dazeley, S., Dierckxsens, M., Dietrich, D., Djurcic, Z., Dorigo, F., Dracos, M., Durand, V., Efremekov, Y., Elnimr, M., Etenko, A., Falk, E., Fallot, M., Fechner, M., Felde, J., Fernandes, S., Fernández-Bedoya, C., Francia, D., Franco, D., Fischer, V., Franke, A., Franke, M., Furuta, H., Garcia, F., Garcia, J., Gil-Botella, I., Giot, L., Givaudan, A., Göger-Neff, M., Gomez, H., Gonzalez, L., Goodenough, L., Goodman, M., Goon, J., Gramlich, B., Greiner, D., Guertin, A., Guillon, B., Habib, S., Haddad, Y., Hara, T., Hartmann, F., Hartnell, J., Haser, J., Hatzikoutelis, A., Hellwig, D., Hervé, S., Hofacker, R., Horton-Smith, G., Hourlier, A., Ishitsuka, M., Jänner, K., Jiménez, S., Jochum, J., Jollet, C., Kaether, F., Kale, K., Kalousis, L., Kamyshkov, Y., Kaneda, M., Kaplan, D., Karakac, M., Kawasaki, T., Kemp, E., Kibe, Y., Kirchner, T., Konno, T., Kryn, D., Kutter, T., Kuze, M., Lachenmaier, T., Lane, C., Langbrandtner, C., Lasserre, T., Lastoria, C., Latron, L., Leonardo, C., Letourneau, A., Lhuillier, D., Lima, H., Lindner, M., López-Castaño, J., LoSecco, J., Lubsandorzhiev, B., Lucht, S., Maeda, J., Maesano, C., Mariani, C., Maricic, J., Marie, F., Martinez, J., Martino, J., Matsubara, T., McKee, D., Meigner, F., Mention, G., Meregaglia, A., Meyer, J., Miletic, T., Milincic, R., Millot, J., Minotti, A., Mirones, V., Miyata, H., Mueller, T., Nagasaka, Y., Nakajima, K., Navas-Nicolás, D., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Oralbaev, A., Ostrovskiy, I., Palomares, C., Peeters, S., Pepe, I., Perasso, S., Perrin, P., Pfahler, P., Porta, A., Pronost, G., Puras, J., Quéval, R., Ramirez, J., Reichenbacher, J., Reinhold, B., Reissfelder, M., Remoto, A., Reyna, D., Rodriguez, I., Röhling, M., Roncin, R., Rudolf, N., Rybolt, B., Sakamoto, Y., Santorelli, R., Sato, F., Schwan, U., Scola, L., Settimo, M., Schönert, S., Schoppmann, S., Shaevitz, M., Sharankova, R., Sibille, V., Sida, J., Sinev, V., Shrestha, D., Skorokhvatov, M., Soldin, P., Spitz, J., Stahl, A., Stancu, I., Starzynski, P., Stock, M., Stokes, L., Strait, M., Stüken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Sun, Z., Svoboda, R., Tabata, H., Tamura, N., Terao, K., Tonazzo, A., Toral, F., Toups, M., Thi, H., Valdivia, F., Valdiviesso, G., Vassilopoulos, N., Verdugo, A., Veyssiere, C., Viaud, B., Vignaud, D., Vivier, M., Wagner, S., Wiebusch, C., White, B., Winslow, L., Worcester, M., Wurm, M., Wurtz, J., Yang, G., Yáñez, J., Yermia, F., Zbiri, K., AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire Neutrino de Champagne Ardenne (LNCA - UMS 3263), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Double Chooz, de Kerret, H, Abe, Y, Aberle, C, Abrahao, T, Ahijado, J, Akiri, T, Alarcon, J, Alba, J, Almazan, H, dos Anjos, J, Appel, S, Ardellier, F, Barabanov, I, Barriere, J, Baussan, E, Baxter, A, Bekman, I, Bergevin, M, Bernstein, A, Bertoli, W, Bezerra, T, Bezrukov, L, Blanco, C, Bleurvacq, N, Blucher, E, Bonet, H, Bongrand, M, Bowden, N, Brugiere, T, Buck, C, Avanzini, M, Busenitz, J, Cabrera, A, Caden, E, Calvo, E, Camilleri, L, Carr, R, Cazaux, S, Cela, J, Cerrada, M, Chang, P, Charon, P, Chauveau, E, Chimenti, P, Classen, T, Collin, A, Conover, E, Conrad, J, Cormon, S, Corpace, O, Courty, B, Crespo-Anadon, J, Cribier, M, Crum, K, Cuadrado, S, Cucoanes, A, D'Agostino, M, Damon, E, Dawson, J, Dazeley, S, Dierckxsens, M, Dietrich, D, Djurcic, Z, Dorigo, F, Dracos, M, Durand, V, Efremeko, Y, Elnimr, M, Etenko, A, Falk, E, Fallot, M, Fechner, M, Felde, J, Fernandes, S, Fernandez-Bedoya, C, Francia, D, Franco, D, Fischer, V, Franke, A, Franke, M, Furuta, H, Garcia, F, Garcia, J, Gil-Botella, I, Giot, L, Givaudan, A, Goger-Neff, M, Gomez, H, Gonzalez, L, Goodenough, L, Goodman, M, Goon, J, Gramlich, B, Greiner, D, Guertin, A, Guillon, B, Habib, S, Haddad, Y, Hara, T, Hartmann, F, Hartnell, J, Haser, J, Hatzikoutelis, A, Hellwig, D, Herve, S, Hofacker, R, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Janner, K, Jimenez, S, Jochum, J, Jollet, C, Kaether, F, Kale, K, Kalousis, L, Kamyshkov, Y, Kaneda, M, Kaplan, D, Karakac, M, Kawasaki, T, Kemp, E, Kibe, Y, Kirchner, T, Konno, T, Kryn, D, Kutter, T, Kuze, M, Lachenmaier, T, Lane, C, Langbrandtner, C, Lasserre, T, Lastoria, C, Latron, L, Leonardo, C, Letourneau, A, Lhuillier, D, Lima, H, Lindner, M, Lopez-Castano, J, Losecco, J, Lubsandorzhiev, B, Lucht, S, Maeda, J, Maesano, C, Mariani, C, Maricic, J, Marie, F, Martinez, J, Martino, J, Matsubara, T, Mckee, D, Meigner, F, Mention, G, Meregaglia, A, Meyer, J, Miletic, T, Milincic, R, Millot, J, Minotti, A, Mirones, V, Miyata, H, Mueller, T, Nagasaka, Y, Nakajima, K, Navas-Nicolas, D, Nikitenko, Y, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Oralbaev, A, Ostrovskiy, I, Palomares, C, Peeters, S, Pepe, I, Perasso, S, Perrin, P, Pfahler, P, Porta, A, Pronost, G, Puras, J, Queval, R, Ramirez, J, Reichenbacher, J, Reinhold, B, Reissfelder, M, Remoto, A, Reyna, D, Rodriguez, I, Rohling, M, Roncin, R, Rudolf, N, Rybolt, B, Sakamoto, Y, Santorelli, R, Sato, F, Schwan, U, Schonert, S, Schoppmann, S, Scola, L, Settimo, M, Shaevitz, M, Sharankova, R, Sibille, V, Sida, J, Sinev, V, Shrestha, D, Skorokhvatov, M, Soldin, P, Spitz, J, Stahl, A, Stancu, I, Starzynski, P, Stock, M, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Sun, Z, Svoboda, R, Tabata, H, Tamura, N, Terao, K, Tonazzo, A, Toral, F, Toups, M, Thi, H, Valdivia, F, Valdiviesso, G, Vassilopoulos, N, Verdugo, A, Veyssiere, C, Viaud, B, Vignaud, D, Vivier, M, Wagner, S, Wiebusch, C, White, B, Winslow, L, Worcester, M, Wurm, M, Wurtz, J, Yang, G, Yanez, J, Yermia, F, and Zbiri, K
Subjects: Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, scintillation counter: liquid, far detector, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), reactor neutrinos, antineutrino: detector, Neutrino detector, Double Chooz, near detector, gadolinium: admixture, neutrino oscillation, ddc:530, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], organic compounds, Engineering (miscellaneous), activity report, detector: design, performance
Abstract: This article describes the setup and performance of the near and far detectors in the Double Chooz experiment. The electron antineutrinos of the Chooz nuclear power plant were measured in two identically designed detectors with different average baselines of about 400 m and 1050 m from the two reactor cores. Over many years of data taking the neutrino signals were extracted from interactions in the detectors with the goal of measuring a fundamental parameter in the context of neutrino oscillation, the mixing angle {\theta}13. The central part of the Double Chooz detectors was a main detector comprising four cylindrical volumes filled with organic liquids. From the inside towards the outside there were volumes containing gadolinium-loaded scintillator, gadolinium-free scintillator, a buffer oil and, optically separated, another liquid scintillator acting as veto system. Above this main detector an additional outer veto system using plastic scintillator strips was installed. The technologies developed in Double Chooz were inspiration for several other antineutrino detectors in the field. The detector design allowed implementation of efficient background rejection techniques including use of pulse shape information provided by the data acquisition system. The Double Chooz detectors featured remarkable stability, in particular for the detected photons, as well as high radiopurity of the detector components., Comment: 49 pages, 29 figures
Published: 2022
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6. Science and mission status of EUSO-SPB2

Author: Abdellaoui, G., Abe, S., Adams, Jr, J.H., Allard, D., Alonso, G., Anchordoqui, L., Anzalone, A., Arnone, E., Asano, K., Attallah, R., Attoui, H., Ave Pernas, M., Bagheri, M., Baláz, J., Bakiri, M., Barghini, D., Bartocci, S., Battisti, M., Bayer, J., Beldjilali, B., Belenguer, T., Belkhalfa, N., Bellotti, R., Belov, A. A., Benmessai, K., Bertaina, M., Bertone, P. F., Biermann, P. L., Bisconti, F., Blaksley, C., Blanc, N., Blin-Bondil, S., Bobik, P., Bogomilov, M., Bozzo, E., Briz, S., Bruno, A., Caballero, K. S., Cafagna, F., Cambié, G., Campana, D., Capdevielle, J. N., Capel, F., Caramete, A., Caramete, L., Carlson, P., Caruso, R., Casolino, M., Cassardo, C., Castellina, A., Catalano, O., Cellino, A., Černý, K., Chikawa, M., Chiritoi, G., Christl, M. J., Colalillo, R., Conti, L., Cotto, G., Crawford, H. J., Cremonini, R., Creusot, A., Castro Gónzalez, A. de, Taille, C. de la, Peral, L. del, Diaz Damian, A., Diesing, R., Dinaucourt, P., Djakonow, A., Djemil, T., Ebersoldt, A., Ebisuzaki, T., Eliasson, L., Eser, J., Fenu, F., Fernández-González, S., Ferrarese, S., Filippatos, G., Finch, W. I., Fornaro, C., Fouka, M., Franceschi, A., Franchini, S., Fuglesang, C., Fujii, T., Fukushima, M., Galeotti, P., García-Ortega, E., Gardiol, D., Garipov, G. K., Gascón, E., Gazda, E., Genci, J., Golzio, A., González Alvarado, C., Gorodetzky, P., Green, A., Guarino, F., Guépin, C., Guzmán, A., Hachisu, Y., Haungs, A., Hernández Carretero, J., Hulett, L., Ikeda, D., Inoue, N., Inoue, S., Isgrò, F., Itow, Y., Jammer, T., Jeong, S., Joven, E., Judd, E. G., Jochum, J., Kajino, F., Kajino, T., Kalli, S., Kaneko, I., Karadzhov, Y., Kasztelan, M., Katahira, K., Kawai, K., Kawasaki, Y., Kedadra, A., Khales, H., Khrenov, B. A., Kim, J.-S., Kim, S.-W., Kleifges, M., Klimov, P. A., Kolev, D., Kreykenbohm, I., Krizmanic, J. F., Królik, K., Kungel, V., Kurihara, Y., Kusenko, A., Kuznetsov, E., Lahmar, H., Lakhdari, F., Licandro, J., López Campano, L., López Martínez, F., Mackovjak, S., Mahdi, M., Mandát, D., Manfrin, M., Marcelli, L., Marcos, J. L., Marszał, W., Martín, Y., Martinez, O., Mase, K., Matev, R., Matthews, J. N., Mebarki, N., Medina-Tanco, G., Menshikov, A., Merino, A., Mese, M., Meseguer, J., Meyer, S. S., Mimouni, J., Miyamoto, H., Mizumoto, Y., Monaco, A., Morales de los Ríos, J. A., Mastafa, M., Nagataki, S., Naitamor, S., Napolitano, T., Nachtman, J. M., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A. V., Onel, Y., Osteria, G., Otte, A. N., Pagliaro, A., Painter, W., Panasyuk, M. I., Panico, B., Parizot, E., Park, I. H., Pastircak, B., Paul, T., Pech, M., Pérez-Grande, I., Perfetto, F., Peter, T., Picozza, P., Pindado, S., Piotrowski, L. W., Piraino, S., Plebaniak, Z., Pollini, A., Popescu, E. M., Prevete, R., Prévôt, G., Prieto, H., Przybylak, M., Puehlhofer, G., Putis, M., Reardon, P., Reno, M. H., Reyes, M., Ricci, M., Rodríguez Frías, M. D., Romero Matamala, O. F., Ronga, F., Sabau, M. D., Saccá, G., Sáez Cano, G., Sagawa, H., Sahnoune, Z., Saito, A., Sakaki, N., Salazar, H., Sanchez Balanzar, J. C., Sánchez, J. L., Santangelo, A., Sanz-Andrés, A., Sanz Palomino, M., Saprykin, O. A., Sarazin, F., Sato, M., Scagliola, A., Schanz, T., Schieler, H., Schovánek, P., Scotti, V., Serra, M., Sharakin, S. A., Shimizu, H. M., Shinozaki, K., Shirahama, T., Soriano, J. F., Sotgiu, A., Stan, I., Strharský, I., Sugiyama, N., Supanitsky, D., Suzuki, M., Szabelski, J., Tajima, N., Tajima, T., Takahashi, Y., Takeda, M., Takizawa, Y., Talai, M. C., Tameda, Y., Tenzer, C., Thomas, S. B., Tibolla, O., Tkachev, L. G., Tomida, T., Tone, N., Toscano, S., Traïche, M., Tsunesada, Y., Tsuno, K., Turriziani, S., Uchihori, Y., Vaduvescu, O., Valdés-Galicia, J. F., Vallania, P., Valore, L., Vankova-Kirilova, G., Venters, T. M., Vigorito, C., Villaseñor, L., Vlcek, B., Ballmoos, P. von, Vrabel, M., Wada, S., Watanabe, J., Watts, Jr, J., Weigand Muñoz, R., Weindl, A., Wiencke, L., Wille, M., Wilms, J., Winn, D., Yamamoto, T., Yang, J., Yano, H., Yashin, I. V., Yonetoku, D., Yoshida, S., Young, R., Zgura, I. S., Zotov, M. Yu, Zuccaro Marchi, A., JEM-EUSO Collaboration, Guarino, Fausto, Isgro', Francesco, Colalillo, Roberta, Mese, Marco, Valore, Laura, Scotti, Valentina, and Prevete, Roberto
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy, Universe, law.invention, Telescope, Air shower, Observatory, law, Nadir, Ultra-high-energy cosmic ray, ddc:620, Neutrino, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM), Engineering & allied operations, Cherenkov radiation, media_common
Abstract: The Extreme Universe Space Observatory on a Super Pressure Balloon II (EUSO-SPB2) is a second generation stratospheric balloon instrument for the detection of Ultra High Energy Cosmic Rays (UHECRs, E > 1 EeV) via the fluorescence technique and of Very High Energy (VHE, E > 10 PeV) neutrinos via Cherenkov emission. EUSO-SPB2 is a pathfinder mission for instruments like the proposed Probe Of Extreme Multi-Messenger Astrophysics (POEMMA). The purpose of such a space-based observatory is to measure UHECRs and UHE neutrinos with high statistics and uniform exposure. EUSO-SPB2 is designed with two Schmidt telescopes, each optimized for their respective observational goals. The Fluorescence Telescope looks at the nadir to measure the fluorescence emission from UHECR-induced extensive air shower (EAS), while the Cherenkov Telescope is optimized for fast signals ($\sim$10 ns) and points near the Earth's limb. This allows for the measurement of Cherenkov light from EAS caused by Earth skimming VHE neutrinos if pointed slightly below the limb or from UHECRs if observing slightly above. The expected launch date of EUSO-SPB2 is Spring 2023 from Wanaka, NZ with target duration of up to 100 days. Such a flight would provide thousands of VHECR Cherenkov signals in addition to tens of UHECR fluorescence tracks. Neither of these kinds of events have been observed from either orbital or suborbital altitudes before, making EUSO-SPB2 crucial to move forward towards a space-based instrument. It will also enhance the understanding of potential background signals for both detection techniques. This contribution will provide a short overview of the detector and the current status of the mission as well as its scientific goals., 37$^{\rm{th}}$ International Cosmic Ray Conference (ICRC 2021) July 12th -- 23rd, 2021 Online -- Berlin, Germany
Published: 2022
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7. Measurement of UV light emission of the nighttime Earth by Mini-EUSO for space-based UHECR observations

Author: Shinozaki, K., Bolmgren, K., Barghini, D., Battisti, M., Belov, A., Bertaina, M., Bisconti, F., Cambiè, G., Capel, F., Casolino, M., Fenu, F., Golzio, A., Klimov, P., Kungel, V., Marcelli, L., Miyamoto, H., Piotrowski, L. W., Plebaniak, Z., Przybylak, M., Szabelski, J., Sakaki, N., Takizawa, Y., Abdellaoui, G., Abe, S., Adams, Jr, J.H., Allard, D., Alonso, G., Anchordoqui, L., Anzalone, A., Arnone, E., Asano, K., Attallah, R., Attoui, H., Ave Pernas, M., Bagheri, M., Baláz, J., Bakiri, M., Bartocci, S., Bayer, J., Beldjilali, B., Belenguer, T., Belkhalfa, N., Bellotti, R., Belov, A. A., Benmessai, K., Bertone, P. F., Biermann, P. L., Blaksley, C., Blanc, N., Blin-Bondil, S., Bobik, P., Bogomilov, M., Bozzo, E., Briz, S., Bruno, A., Caballero, K. S., Cafagna, F., Cambié, G., Campana, D., Capdevielle, J.-N., Caramete, A., Caramete, L., Carlson, P., Caruso, R., Cassardo, C., Castellina, A., Catalano, O., Cellino, A., Černý, K., Chikawa, M., Chiritoi, G., Christl, M. J., Colalillo, R., Conti, L., Cotto, G., Crawford, H. J., Cremonini, R., Creusot, A., Castro Gónzalez, A. de, Taille, C. de la, Peral, L. del, Diaz Damian, A., Diesing, R., Dinaucourt, P., Djakonow, A., Djemil, T., Ebersoldt, A., Ebisuzaki, T., Eser, J., Fernández-González, S., Ferrarese, S., Filippatos, G., Finch, W. I., Fornaro, C., Fouka, M., Franceschi, A., Franchini, S., Fuglesang, C., Fujii, T., Fukushima, M., Galeotti, P., García-Ortega, E., Gardiol, D., Garipov, G. K., Gascón, E., Gazda, E., Genci, J., González Alvarado, C., Gorodetzky, P., Green, A., Guarino, F., Guépin, C., Guzmán, A., Hachisu, Y., Haungs, A., Hernández Carretero, J., Hulett, L., Ikeda, D., Inoue, N., Inoue, S., Isgrò, F., Itow, Y., Jammer, T., Jeong, S., Joven, E., Judd, E. G., Jochum, J., Kajino, F., Kajino, T., Kalli, S., Kaneko, I., Karadzhov, Y., Kasztelan, M., Katahira, K., Kawai, K., Kawasaki, Y., Kedadra, A., Khales, H., Khrenov, B. A., Kim, J.-S., Kim, S.-W., Kleifges, M., Klimov, P. A., Kolev, D., Kreykenbohm, I., Krizmanic, J. F., Królik, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., Lahmar, H., Lakhdari, F., Licandro, J., López Campano, L., López Martínez, F., Mackovjak, S., Mahdi, M., Mandát, D., Manfrin, M., Marcos, J. L., Marszał, W., Martín, Y., Martinez, O., Mase, K., Matev, R., Matthews, J. N., Mebarki, N., Medina-Tanco, G., Menshikov, A., Merino, A., Mese, M., Meseguer, J., Meyer, S. S., Mimouni, J., Mizumoto, Y., Monaco, A., Morales de los Ríos, J. A., Mastafa, M., Nagataki, S., Naitamor, S., Napolitano, T., Nachtman, J. M., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A. V., Onel, Y., Osteria, G., Otte, A. N., Pagliaro, A., Painter, W., Panasyuk, M. I., Panico, B., Parizot, E., Park, I. H., Pastircak, B., Paul, T., Pech, M., Pérez-Grande, I., Perfetto, F., Peter, T., Picozza, P., Pindado, S., Piraino, S., Pollini, A., Popescu, E. M., Prevete, R., Prévôt, G., Prieto, H., Puehlhofer, G., Putis, M., Reardon, P., Reno, M. H., Reyes, M., Ricci, M., Rodríguez Frías, M. D., Romero Matamala, O. F., Ronga, F., Sabau, M. D., Saccá, G., Sáez Cano, G., Sagawa, H., Sahnoune, Z., Saito, A., Salazar, H., Sanchez Balanzar, J. C., Sánchez, J. L., Santangelo, A., Sanz-Andrés, A., Sanz Palomino, M., Saprykin, O. A., Sarazin, F., Sato, M., Scagliola, A., Schanz, T., Schieler, H., Schovánek, P., Scotti, V., Serra, M., Sharakin, S. A., Shimizu, H. M., Soriano, J. F., Sotgiu, A., Stan, I., Strharský, I., Sugiyama, N., Supanitsky, D., Suzuki, M., Tajima, N., Tajima, T., Takahashi, Y., Takeda, M., Talai, M. C., Tameda, Y., Tenzer, C., Thomas, S. B., Tibolla, O., Tkachev, L. G., Tomida, T., Tone, N., Toscano, S., Traïche, M., Tsunesada, Y., Tsuno, K., Turriziani, S., Uchihori, Y., Vaduvescu, O., Valdés-Galicia, J. F., Vallania, P., Valore, L., Vankova-Kirilova, G., Venters, T. M., Vigorito, C., Villaseñor, L., Vlcek, B., Ballmoos, P. von, Vrabel, M., Wada, S., Watanabe, J., Watts, Jr, J., Weigand Muñoz, R., Weindl, A., Wiencke, L., Wille, M., Wilms, J., Winn, D., Yamamoto, T., Yang, J., Yano, H., Yashin, I. V., Yonetoku, D., Yoshida, S., Young, R., Zgura, I. S., Zotov, M. Yu, Zuccaro Marchi, A., and JEM-EUSO Collaboration
Subjects: Photomultiplier, media_common.quotation_subject, Orbits, FOS: Physical sciences, Cosmic ray, Fluorescence, Atmosphere, International Space Station, Cosmic rays, Instrumentation and Methods for Astrophysics (astro-ph.IM), Engineering & allied operations, media_common, Earth atmosphere, Photomultipliers, Space stations, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Detector, Airglow, Astronomy, Universe, Light emission, ddc:620, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The JEM-EUSO (Joint Experiment Missions for Extreme Universe Space Observatory) program aims at the realization of the ultra-high energy cosmic ray (UHECR) observation using wide field of view fluorescence detectors in orbit. Ultra-violet (UV) light emission from the atmosphere such as airglow and anthropogenic light on the Earth’s surface are the main background for the space-based UHECR observations. The Mini-EUSO mission has been operated on the International Space Station (ISS) since 2019 which is the first space-based experiment for the program. The Mini-EUSO instrument consists of a 25 cm refractive optics and the photo-detector module with the 2304-pixel array of the multi-anode photomultiplier tubes. On the nadir-looking window of the ISS, the instrument is capable of continuously monitoring a ∼300 km × 300 km area. In the present work, we report the preliminary result of the measurement of the UV light in the nighttime Earth using the Mini-EUSO data downlinked to the ground. We mapped UV light distribution both locally and globally below the ISS obit. Simulations were also made to characterize the instrument response to diffuse background light. We discuss the impact of such light on space-based UHECR observations and the Mini-EUSO science objectives., PoS: Proceedings of Science, 395 (385), ISSN:1824-8039, Proceedings of 37th International Cosmic Ray Conference
Published: 2022

8. Probing spin-dependent dark matter interactions with $^6$Li

Author: Angloher, G., Benato, G., Bento, A., Bertoldo, E., Bertolini, A., Breier, R., Bucci, C., Canonica, L., D???addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Ferreiro Iachellini, N., Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gorla, P., Gupta, S., Hauff, D., Je??kovsk??, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenk??mper, A., Mancuso, M., Marini, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Palu??ov??, V., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pr??bst, F., Pucci, F., Reindl, F., Rothe, J., Sch??ffner, K., Schieck, J., Schmiedmayer, D., Sch??nert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.
Subjects: Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: CRESST is one of the most prominent direct detection experiments for dark matter particles with sub-GeV/c$^2$ mass. One of the advantages of the CRESST experiment is the possibility to include a large variety of nuclides in the target material used to probe dark matter interactions. In this work, we discuss in particular the interactions of dark matter particles with protons and neutrons of $^{6}$Li. This is now possible thanks to new calculations on nuclear matrix elements of this specific isotope of Li. To show the potential of using this particular nuclide for probing dark matter interactions, we used the data collected previously by a CRESST prototype based on LiAlO$_2$ and operated in an above ground test-facility at Max-Planck-Institut f\"ur Physik in Munich, Germany. In particular, the inclusion of $^{6}$Li in the limit calculation drastically improves the result obtained for spin-dependent interactions with neutrons in the whole mass range. The improvement is significant, greater than two order of magnitude for dark matter masses below 1 GeV/c$^2$, compared to the limit previously published with the same data.
Published: 2022

9. Results on sub-GeV Dark Matter from a 10 eV Threshold CRESST-III Silicon Detector

Author: CRESST Collaboration, Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Burkhart, J., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Nilima, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present limits on the spin-independent interaction cross section of dark matter particles with silicon nuclei, derived from data taken with a cryogenic calorimeter with 0.35 g target mass operated in the CRESST-III experiment. A baseline nuclear recoil energy resolution of $(1.36\pm 0.05)$ eV$_{\text{nr}}$, currently the lowest reported for macroscopic particle detectors, and a corresponding energy threshold of $(10.0\pm 0.2)$ eV$_{\text{nr}}$ have been achieved, improving the sensitivity to light dark matter particles with masses below 160 MeV/c$^2$ by a factor of up to 20 compared to previous results. We characterize the observed low energy excess, and we exclude noise triggers and radioactive contaminations on the crystal surfaces as dominant contributions., Comment: 8 pages, 5 figures; precised the position of the calibration source in Fig. 1; extended the discussion about the observed energy spectrum; added the DM limit curve to ancillary files. Published in Phys. Rev. D
Published: 2022
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10. Latest observations on the low energy excess in CRESST-III

Author: Angloher, G., Banik, S., Benato, G., Bento, A., Bertolini, A., Breier, R., Bucci, C., Canonica, L., D Addabbo, A., Di Lorenzo, S., Einfalt, L., Erb, A., Feilitzsch, F. V., Ferreiro Iachellini, N., Fichtinger, S., Fuchs, D., Fuss, A., Garai, A., Ghete, V. M., Gerster, S., Gorla, P., Guillaumon, P. V., Gupta, S., Hauff, D., Ješkovský, M., Jochum, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Marini, L., Meyer, L., Mokina, V., Athoy Nilima, Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pröbst, F., Pucci, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., and Zema, V.
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The CRESST experiment observes an unexplained excess of events at low energies. In the current CRESST-III data-taking campaign we are operating detector modules with different designs to narrow down the possible explanations. In this work, we show first observations of the ongoing measurement, focusing on the comparison of time, energy and temperature dependence of the excess in several detectors. These exclude dark matter, radioactive backgrounds and intrinsic sources related to the crystal bulk as a major contribution., Comment: 10 pages, 5 figures; to be published in IDM2022 proceedings; corrected several minor typos
Published: 2022
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11. Search for exotic physics in double-β decays with GERDA Phase II

Author: Agostini, M., Alexander, A., Araujo, G., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Belogurov, S., Bettini, A., Bezrukov, L., Biancacci, V., Bossio, E., Bothe, V., Brugnera, R., Caldwell, A., Calgaro, S., Cattadori, C., Chernogorov, A., Comellato, T., D'Andrea, V., Demidova, E. V., Di Giacinto, A., Di Marco, N., Doroshkevich, E., Fischer, F., Fomina, M., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenmuller, J., Hemmer, S., Hofmann, W., Huang, J., Hult, M., Inzhechik, L. V., Janicsko Csathy, J., Jochum, J., Junker, M., Kazalov, V., Kermaidic, Y., Khushbakht, H., Kihm, T., Kilgus, K., Kirpichnikov, I. V., Klimenko, A., Knopfle, K. T., Kochetov, O., Kornoukhov, V. N., Krause, P., Kuzminov, V. V., Laubenstein, M., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Manzanillas, L., Marshall, G., Miloradovic, M., Mingazheva, R., Misiaszek, M., Morella, M., Muller, Y., Nemchenok, I., Pandola, L., Pelczar, K., Pertoldi, L., Piseri, P., Pullia, A., Ransom, C., Rauscher, L., Redchuk, M., Riboldi, S., Rumyantseva, N., Sada, C., Sailer, S., Salamida, F., Schonert, S., Schreiner, J., Schutt, M., Schutz, A. -K., Schulz, O., Schwarz, M., Schwingenheuer, B., Selivanenko, O., Shevchik, E., Shirchenko, M., Shtembari, L., Simgen, H., Smolnikov, A., Stukov, D., Vasenko, A. A., Veresnikova, A., Vignoli, C., von Sturm, K., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zatschler, B., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zschocke, A., Zsigmond, A. J., Zuber, K., Zuzel, G., and The GERDA Collaboration
Subjects: High Energy Physics - Experiment (hep-ex), particle physics - cosmology connection, double beta decay, neutrino properties, particle physics - cosmology connection, GERDA - Abteilung Hinton, FOS: Physical sciences, double beta decay, Astronomy and Astrophysics, Nuclear Experiment (nucl-ex), paper, neutrino properties, ddc
Abstract: A search for Beyond the Standard Model double-β decay modes of 76Ge has been performed with data collected during the Phase II of the GERmanium Detector Array (Gerda) experiment, located at the Laboratori Nazionali del Gran Sasso of INFN (Italy). Improved limits on the decays involving Majorons have been obtained, compared to previous experiments with 76Ge, with half-life values on the order of 1023 yr. For the first time with 76Ge, limits on Lorentz invariance violation effects in double-β decay have been obtained. The isotropic coefficient åof (3), which embeds Lorentz violation in double-β decay, has been constrained at the order of 10-6 GeV. We also set the first experimental limits on the search for light exotic fermions in double-β decay, including sterile neutrinos.
Published: 2022

12. Pulse shape analysis in Gerda Phase II

Author: The GERDA collaboration, Agostini, M., Araujo, G., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Bellotti, E., Belogurov, S., Bettini, A., Bezrukov, L., Biancacci, V., Bossio, E., Bothe, V., Brudanin, V., Brugnera, R., Caldwell, A., Cattadori, C., Chernogorov, A., Comellato, T., D'Andrea, V., Demidova, E. V., Di Marco, N., Doroshkevich, E., Fischer, F., Fomina, M., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenmüller, J., Hemmer, S., Hiller, R., Hofmann, W., Huang, J., Hult, M., Inzhechik, L. V., Csáthy, J. Janicskó, Jochum, J., Junker, M., Kazalov, V., Kermaïdic, Y., Khushbakht, H., Kihm, T., Kilgus, K., Kirsch, A., Kirpichnikov, I. V., Klimenko, A., Knöpfle, K. T., Kochetov, O., Kornoukhov, V. N., Krause, P., Kuzminov, V. V., Laubenstein, M., Lazzaro, A., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Manzanillas, L., Miloradovic, M., Mingazheva, R., Misiaszek, M., Müller, Y., Nemchenok, I., Panas, K., Pandola, L., Pelczar, K., Pertoldi, L., Piseri, P., Pullia, A., Ransom, C., Rauscher, L., Redchuk, M., Riboldi, S., Rumyantseva, N., Sada, C., Salamida, F., Schönert, S., Schreiner, J., Schütt, M., Schütz, A. -K., Schulz, O., Schwarz, M., Schwingenheuer, B., Selivanenko, O., Shevchik, E., Shirchenko, M., Shtembari, L., Simgen, H., Smolnikov, A., Stukov, D., Vasenko, A. A., Veresnikova, A., Vignoli, C., von Sturm, K., Wagner, V., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zatschler, B., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zschocke, A., Zsigmond, A. J., Zuber, K., and Zuzel, G.
Subjects: Technology, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment, Engineering (miscellaneous), ddc:600
Abstract: The GERmanium Detector Array (Gerda) collaboration searched for neutrinoless double-$$\beta $$ β decay in $$^{76}$$ 76 Ge using isotopically enriched high purity germanium detectors at the Laboratori Nazionali del Gran Sasso of INFN. After Phase I (2011–2013), the experiment benefited from several upgrades, including an additional active veto based on LAr instrumentation and a significant increase of mass by point-contact germanium detectors that improved the half-life sensitivity of Phase II (2015–2019) by an order of magnitude. At the core of the background mitigation strategy, the analysis of the time profile of individual pulses provides a powerful topological discrimination of signal-like and background-like events. Data from regular $$^{228}$$ 228 Th calibrations and physics data were both considered in the evaluation of the pulse shape discrimination performance. In this work, we describe the various methods applied to the data collected in Gerda Phase II corresponding to an exposure of 103.7 kg year. These methods suppress the background by a factor of about 5 in the region of interest around $$Q_{\beta \beta }= 2039$$ Q β β = 2039 keV, while preserving $$(81\pm 3)$$ ( 81 ± 3 ) % of the signal. In addition, an exhaustive list of parameters is provided which were used in the final data analysis.
Published: 2021

13. LEGEND-1000 Preconceptual Design Report

Author: LEGEND Collaboration, Abgrall, N., Abt, I., Agostini, M., Alexander, A., Andreoiu, C., Araujo, G. R., Avignone, F. T., Bae, W., Bakalyarov, A., Balata, M., Bantel, M., Barabanov, I., Barabash, A. S., Barbeau, P. S., Barton, C. J., Barton, P. J., Baudis, L., Bauer, C., Bernieri, E., Bezrukov, L., Bhimani, K. H., Biancacci, V., Blalock, E., Bolozdynya, A., Borden, S., Bos, B., Bossio, E., Boston, A., Bothe, V., Bouabid, R., Boyd, S., Brugnera, R., Burlac, N., Busch, M., Caldwell, A., Caldwell, T. S., Carney, R., Cattadori, C., Chan, Y. -D., Chernogorov, A., Christofferson, C. D., Chu, P. -H., Clark, M., Cohen, T., Combs, D., Comellato, T., Cooper, R. J., Costa, I. A., D'Andrea, V., Detwiler, J. A., Di Giacinto, A., Di Marco, N., Dobson, J., Drobizhev, A., Durand, M. R., Edzards, F., Efremenko, Yu., Elliott, S. R., Engelhardt, A., Fajt, L., Faud, N., Febbraro, M. T., Ferella, F., Fields, D. E., Fischer, F., Fomina, M., Fox, H., Franchi, J., Gala, R., Galindo-Uribarri, A., Gangapshev, A., Garfagnini, A., Geraci, A., Gilbert, C., Gold, M., Gooch, C., Gradwohl, K. P., Green, M. P., Grinyer, G. F., Grobov, A., Gruszko, J., Guinn, I., Guiseppe, V. E., Gurentsov, V., Gurov, Y., Gusev, K., Hacket, B., Hagemann, F., Hakenm��eller, J., Haranczyk, M., Hauertmann, L., Haufe, C. R., Hayward, C., Heffron, B., Henkes, F., Henning, R., Aguilar, D. Hervas, Hinton, J., Hodak, R., Hoffmann, H., Hofmann, W., Hostiuc, A., Huang, J., Hult, M., Mirza, M. Ibrahim, Jochum, J., Jones, R., Judson, D., Junker, M., Kaizer, J., Kazalov, V., Kerma��dic, Y., Khushbakht, H., Kidd, M., Kihm, T., Kilgus, K., Kim, I., Klimenko, A., Kn��pfle, K. T., Kochetov, O., Konovalov, S. I., Kontul, I., Kool, K., Kormos, L. L., Kornoukhov, V. N., Korosec, M., Krause, P., Kuzminov, V. V., L��pez-Casta��o, J. M., Lang, K., Laubenstein, M., Le��n, E., Lehnert, B., Leonhardt, A., Li, A., Lindner, M., Lippi, I., Liu, X., Liu, J., Loomba, D., Lubashevskiy, A., Lubsandorzhiev, B., Lusardi, N., M��ller, Y., Macko, M., Macolino, C., Majorovits, B., Mamedov, F., Maneschg, W., Manzanillas, L., Marshall, G., Martin, R. D., Martin, E. L., Massarczyk, R., Mei, D., Meijer, S. J., Mertens, S., Misiaszek, M., Mondragon, E., Morella, M., Morgan, B., Mroz, T., Muenstermann, D., Nave, C. J., Nemchenok, I., Neuberger, M., Oli, T. K., Gann, G. Orebi, Othman, G., Palu��ova, V., Panth, R., Papp, L., Paudel, L. S., Pelczar, K., Perez, J. Perez, Pertoldi, L., Pettus, W., Piseri, P., Poon, A. W. P., Povinec, P., Pullia, A., Radford, D. C., Ramachers, Y. A., Ransom, C., Rauscher, L., Redchuk, M., Reine, A. L., Riboldi, S., Rielage, K., Rozov, S., Rukhadze, E., Rumyantseva, N., Runge, J., Ruof, N. W., Saakyan, R., Sailer, S., Salamanna, G., Salamida, F., Salvat, D. J., Sandukovsky, V., Sch��nert, S., Sch��ltz, A., Sch��tt, M., Schaper, D. C., Schreiner, J., Schulz, O., Schuster, M., Schwarz, M., Schwingenheuer, B., Selivanenko, O., Shaflee, M., Shevchik, E., Shirchenko, M., Shitov, Y., Simgen, H., Simkovic, F., Skorokhvatov, M., Slavickova, M., Smolek, K., Smolnikov, A., Solomon, J. A., Song, G., Starosta, K., Stekl, I., Stommel, M., Stukov, D., Sumathi, R. R., Sweigart, D. A., Szczepaniec, K., Taffarello, L., Tagnani, D., Tayloe, R., Tedeschi, D., Turqueti, M., Varner, R. L., Vasilyev, S., Veresnikova, A., Vetter, K., Vignoli, C., Vogl, C., von Sturm, K., Waters, D., Waters, J. C., Wei, W., Wiesinger, C., Wilkerson, J. F., Willers, M., Wiseman, C., Wojcik, M., Wu, V. H. -S., Xu, W., Yakushev, E., Ye, T., Yu, C. -H., Yumatov, V., Zaretski, N., Zeman, J., Zhitnikov, I., Zinatulina, D., Zschocke, A. -K., Zsigmond, A. J., Zuber, K., and Zuzel, G.
Subjects: Physics - Instrumentation and Detectors, FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: We propose the construction of LEGEND-1000, the ton-scale Large Enriched Germanium Experiment for Neutrinoless $\beta \beta$ Decay. This international experiment is designed to answer one of the highest priority questions in fundamental physics. It consists of 1000 kg of Ge detectors enriched to more than 90% in the $^{76}$Ge isotope operated in a liquid argon active shield at a deep underground laboratory. By combining the lowest background levels with the best energy resolution in the field, LEGEND-1000 will perform a quasi-background-free search and can make an unambiguous discovery of neutrinoless double-beta decay with just a handful of counts at the decay $Q$ value. The experiment is designed to probe this decay with a 99.7%-CL discovery sensitivity in the $^{76}$Ge half-life of $1.3\times10^{28}$ years, corresponding to an effective Majorana mass upper limit in the range of 9-21 meV, to cover the inverted-ordering neutrino mass scale with 10 yr of live time.
Published: 2021

14. Simulating MADMAX in 3D: requirements for dielectric axion haloscopes

Author: Knirck, S., Sch��tte-Engel, J., Beurthey, S., Breitmoser, Dominik, Caldwell, A., Diaconu, C., Diehl, J., Egge, Jacob Mathias, Esposito, M., Gardikiotis, Antonios, Garutti, Erika, Heyminck, S., Hubaut, F., Jochum, J., Karst, P., Kramer, M., Krieger, Christoph, Labat, D., Lee, C., Li, X., Lindner, Axel, Majorovits, B., Martens, Stephan, Matysek, Michael, ��z, E., Planat, L., Pralavorio, P., Raffelt, G., Ranadive, A., Redondo, J., Reimann, O., Ringwald, Andreas, Roch, N., Schaffran, Joern, Schmidt, A., Shtembari, L., Steffen, F., Strandhagen, C., Strom, D., Usherov, I., Wieching, G., The MADMAX Collaboration, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), MADMAX, Max Planck Institute for Physics, Universität Hamburg (UHH), Circuits électroniques quantiques Alpes (NEEL - QuantECA), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Max Planck Institute for Radio Astronomy, Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen, Max-Planck-Institut für Radioastronomie (MPIFR), Deutsches Elektronen-Synchrotron [Hamburg] (DESY), Rheinisch-Westfälische Technische Hochschule Aachen University (RWTH), and University of Zaragoza - Universidad de Zaragoza [Zaragoza]
Subjects: velocity, Physics - Instrumentation and Detectors, Dark matter, FOS: Physical sciences, Dielectric, planarity, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), benchmark, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], surface, ddc:530, Sensitivity (control systems), [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, dielectric, Axion, Physics, form factor, axion: dark matter, 010308 nuclear & particles physics, Isotropy, external field [magnetic field], Form factor (quantum field theory), Astronomy and Astrophysics, Monte Carlo [numerical calculations], Instrumentation and Detectors (physics.ins-det), mass [axion], sensitivity, MADMAX, Planarity testing, Magnetic field, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], beam profile, axion: mass, Atomic physics, dark matter [axion], numerical calculations: Monte Carlo, magnetic field: external field
Abstract: Journal of cosmology and astroparticle physics 2021(10), 034 (1-25) (2021). doi:10.1088/1475-7516/2021/10/034, We present 3D calculations for dielectric haloscopes such as the currently envisioned MADMAX experiment. For ideal systems with perfectly flat, parallel and isotropic dielectric disks of finite diameter, we find that a geometrical form factor reduces the emitted power by up to $30\,\%$ compared to earlier 1D calculations. We derive the emitted beam shape, which is important for antenna design. We show that realistic dark matter axion velocities of $10^{-3} c$ and inhomogeneities of the external magnetic field at the scale of $10\,\%$ have negligible impact on the sensitivity of MADMAX. We investigate design requirements for which the emitted power changes by less than $20\,\%$ for a benchmark boost factor with a bandwidth of $50\,{\rm MHz}$ at $22\,{\rm GHz}$, corresponding to an axion mass of $90\,\mu{\rm eV}$. We find that the maximum allowed disk tilt is $100\,\mu{\rm m}$ divided by the disk diameter, the required disk planarity is $20\,\mu{\rm m}$ (min-to-max) or better, and the maximum allowed surface roughness is $100\,\mu{\rm m}$ (min-to-max). We show how using tiled dielectric disks glued together from multiple smaller patches can affect the beam shape and antenna coupling., Published by IOP, London
Published: 2021
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15. Characterization of inverted coaxial $^{76}$Ge detectors in GERDA for future double-$��$ decay experiments

Author: GERDA Collaboration, Agostini, M., Araujo, G. R., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Bellotti, E., Belogurov, S., Bettini, A., Bezrukov, L., Biancacci, V., Bossio, E., Bothe, V., Brudanin, V., Brugnera, R., Caldwell, A., Cattadori, C., Chernogorov, A., Comellato, T., D'Andrea, V., Demidova, E. V., Di Marco, N., Doroshkevich, E., Fischer, F., Fomina, M., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenm��ller, J., Hemmer, S., Hofmann, W., Huang, J., Hult, M., Inzhechik, L. V., Cs��thy, J. Janicsk��, Jochum, J., Junker, M., Kazalov, V., Kerma��dic, Y., Khushbakht, H., Kihm, T., Kirpichnikov, I. V., Klimenko, A., Knei��l, R., Kn��pfle, K. T., Kochetov, O., Kornoukhov, V. N., Krause, P., Kuzminov, V. V., Laubenstein, M., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Manzanillas, L., Miloradovic, M., Mingazheva, R., Misiaszek, M., Moseev, P., M��ller, Y., Nemchenok, I., Pandola, L., Pelczar, K., Pertoldi, L., Piseri, P., Pullia, A., Ransom, C., Rauscher, L., Riboldi, S., Rumyantseva, N., Sada, C., Salamida, F., Sch��nert, S., Schreiner, J., Sch��tt, M., Sch��tz, A. -K., Schulz, O., Schwarz, M., Schwingenheuer, B., Selivanenko, O., Shevchik, E., Shirchenko, M., Shtembari, L., Simgen, H., Smolnikov, A., Stukov, D., Vasenko, A. A., Veresnikova, A., Vignoli, C., von Sturm, K., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zatschler, B., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zschocke, A., Zsigmond, A. J., Zuber, K., and Zuzel, G.
Subjects: Physics::Instrumentation and Detectors, FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex)
Abstract: Neutrinoless double-$��$ decay of $^{76}$Ge is searched for with germanium detectors where source and detector of the decay are identical. For the success of future experiments it is important to increase the mass of the detectors. We report here on the characterization and testing of five prototype detectors manufactured in inverted coaxial (IC) geometry from material enriched to 88% in $^{76}$Ge. IC detectors combine the large mass of the traditional semi-coaxial Ge detectors with the superior resolution and pulse shape discrimination power of point contact detectors which exhibited so far much lower mass. Their performance has been found to be satisfactory both when operated in vacuum cryostat and bare in liquid argon within the GERDA setup. The measured resolutions at the Q-value for double-$��$ decay of $^{76}$Ge (Q$_{��}$ = 2039 keV) are about 2.1 keV full width at half maximum in vacuum cryostat. After 18 months of operation within the ultra-low background environment of the GERmanium Detector Array (GERDA) experiment and an accumulated exposure of 8.5 kg$\cdot$yr, the background index after analysis cuts is measured to be $4.9^{+7.3}_{-3.4}\times 10^{-4}$ counts /(keV$\cdot$kg$\cdot$yr) around Q$_{��}$. This work confirms the feasibility of IC detectors for the next-generation experiment LEGEND., 13 pages, 12 figures, submitted to EPJC
Published: 2021
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16. Cryogenic characterization of a LiAlO$_{2}$ crystal and new results on spin-dependent dark matter interactions with ordinary matter

Author: Abdelhameed, A. H., Angloher, G., Bauer, P., Bento, A., Bertoldo, E., Breier, R., Bucci, C., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuchs, D., Fuss, A., Ghete, V. M., Garai, A., Gorla, P., Hauff, D., Je��kovsk��, M., Jochum, J., Kaizer, J., Kaznacheeva, M., Kinast, A., Kluck, H., Kraus, H., Langenk��mper, A., Mancuso, M., Mokina, V., Mondragon, E., Olmi, M., Ortmann, T., Pagliarone, C., Palu��ov��, V., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pr��bst, F., Reindl, F., Rothe, J., Sch��ffner, K., Schieck, J., Schipperges, V., Schmiedmayer, D., Sch��nert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Usherov, I., Wagner, F., Willers, M., Zema, V., Zeman, J., Br��tzam, M., and Ganschow, S.
Subjects: Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: In this work, a first cryogenic characterization of a scintillating LiAlO$_{2}$ single crystal is presented. The results achieved show that this material holds great potential as a target for direct dark matter search experiments. Three different detector modules obtained from one crystal grown at the Leibniz-Institut f\"ur Kristallz\"uchtung (IKZ) have been tested to study different properties at cryogenic temperatures. Firstly, two 2.8 g twin crystals were used to build different detector modules which were operated in an above-ground laboratory at the Max Planck Institute for Physics (MPP) in Munich, Germany. The first detector module was used to study the scintillation properties of LiAlO$_{2}$ at cryogenic temperatures. The second achieved an energy threshold of (213.02$\pm$1.48) eV which allows setting a competitive limit on the spin-dependent dark matter particle-proton scattering cross section for dark matter particle masses between 350 MeV/c$^{2}$ and 1.50 GeV/c$^{2}$. Secondly, a detector module with a 373 g LiAlO$_{2}$ crystal as the main absorber was tested in an underground facility at the Laboratori Nazionali del Gran Sasso (LNGS): from this measurement it was possible to determine the radiopurity of the crystal and study the feasibility of using this material as a neutron flux monitor for low-background experiments.
Published: 2020

17. MADMAX Status Report

Author: Beurthey, S., Böhmer, N., Hambarzumjan, A., Heyminck, S., Hubaut, F., Jochum, J., Karst, P., Khan, S., Kittlinger, D., Knirck, S., Kramer, M., Krieger, C., Brun, P., Lasserre, T., Lee, C., Li, X., Lindner, Axel, Majorovits, B., Matysek, M., Martens, S., Öz, E., Pataguppi, P., Pralavorio, P., Caldwell, A., Raffelt, G., Redondo, J., Reimann, O., Ringwald, A., Roch, N., Saikawa, K., Schaffran, J., Schmidt, A., Schütte-Engel, J., Sedlak, A., Chevalier, L., Steffen, F., Shtembari, L., Strandhagen, C., Strom, D., Wieching, G., The Madmax Collaboration, Diaconu, C., Dvali, G., Freire, P., Garutti, E., Gooch, C., Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Circuits électroniques quantiques Alpes (NEEL - QuantECA), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)
Subjects: Physics - Instrumentation and Detectors, axion: dark matter, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), axion: detector, mass [axion], High Energy Physics - Experiment, Automatic Keywords, high [magnetic field], High Energy Physics - Experiment (hep-ex), electromagnetic [wave], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], dark matter [axion], dielectric, mirror, activity report, detector: design
Abstract: International audience; In this report we present the status of the MAgnetized Disk and Mirror Axion eXperiment (MADMAX), the first dielectric haloscope for the direct search of dark matter axions in the mass range of 40 to 400 $\mu$eV. MADMAX will consist of several parallel dielectric disks, which are placed in a strong magnetic field and with adjustable separations. This setting is expected to allow for an observable emission of axion induced electromagnetic waves at a frequency between 10 and 100 GHz corresponding to the axion mass. The present document orignated from a status report to the DESY PRC in 2019.
Published: 2020
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18. Final Results of GERDA on the Search for Neutrinoless Double-$��$ Decay

Author: GERDA Collaboration, Agostini, M., Araujo, G. R., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Bellotti, E., Belogurov, S., Bettini, A., Bezrukov, L., Biancacci, V., Borowicz, D., Bossio, E., Bothe, V., Brudanin, V., Brugnera, R., Caldwell, A., Cattadori, C., Chernogorov, A., Comellato, T., D'Andrea, V., Demidova, E. V., Di Marco, N., Doroshkevich, E., Fischer, F., Fomina, M., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenm��ller, J., Hemmer, S., Hiller, R., Hofmann, W., Huang, J., Hult, M., Inzhechik, L. V., Cs��thy, J. Janicsk��, Jochum, J., Junker, M., Kazalov, V., Kerma��dic, Y., Khushbakht, H., Kihm, T., Kirpichnikov, I. V., Klimenko, A., Knei��l, R., Kn��pfle, K. T., Kochetov, O., Kornoukhov, V. N., Krause, P., Kuzminov, V. V., Laubenstein, M., Lazzaro, A., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Manzanillas, L., Miloradovic, M., Mingazheva, R., Misiaszek, M., Moseev, P., M��ller, Y., Nemchenok, I., Panas, K., Pandola, L., Pelczar, K., Pertoldi, L., Piseri, P., Pullia, A., Ransom, C., Rauscher, L., Riboldi, S., Rumyantseva, N., Sada, C., Salamida, F., Sch��nert, S., Schreiner, J., Sch��tt, M., Sch��tz, A. -K., Schulz, O., Schwarz, M., Schwingenheuer, B., Selivanenko, O., Shevchik, E., Shirchenko, M., Shtembari, L., Simgen, H., Smolnikov, A., Stukov, D., Vasenko, A. A., Veresnikova, A., Vignoli, C., von Sturm, K., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zatschler, B., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zschocke, A., Zsigmond, A. J., Zuber, K., and Zuzel, G.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex)
Abstract: The GERmanium Detector Array (GERDA) experiment searched for the lepton-number-violating neutrinoless double-$��$ ($0��$) decay of $^{76}$Ge, whose discovery would have far-reaching implications in cosmology and particle physics. By operating bare germanium diodes, enriched in $^{76}$Ge, in an active liquid argon shield, GERDA achieved an unprecedently low background index of $5.2\times10^{-4}$ counts/(keV$\cdot$kg$\cdot$yr) in the signal region and met the design goal to collect an exposure of 100 kg$\cdot$yr in a background-free regime. When combined with the result of Phase I, no signal is observed after 127.2 kg$\cdot$yr of total exposure. A limit on the half-life of $0��$ decay in $^{76}$Ge is set at $T_{1/2}>1.8\times10^{26}$ yr at 90% C.L., which coincides with the sensitivity assuming no signal., 7 pages, 3 figures, submitted to Physical Review Letters
Published: 2020
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19. The first search for bosonic super-WIMPs with masses up to 1 MeV/c$^2$ with GERDA

Author: GERDA collaboration, Agostini, M., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Bellotti, E., Belogurov, S., Bettini, A., Bezrukov, L., Borowicz, D., Bossio, E., Bothe, V., Brudanin, V., Brugnera, R., Caldwell, A., Cattadori, C., Chernogorov, A., Comellato, T., D'Andrea, V., Demidova, E. V., Di Marco, N., Doroshkevich, E., Egorov, V., Fischer, F., Fomina, M., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenmüller, J., Hemmer, S., Hiller, R., Hofmann, W., Hult, M., Inzhechik, L. V., Csáthy, J. Janicskó, Jochum, J., Junker, M., Kazalov, V., Kermaïdic, Y., Khushbakht, H., Kihm, T., Kirpichnikov, I. V., Klimenko, A., Kneißl, R., Knöpfle, K. T., Kochetov, O., Kornoukhov, V. N., Krause, P., Kuzminov, V. V., Laubenstein, M., Lazzaro, A., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Miloradovic, M., Mingazheva, R., Misiaszek, M., Moseev, P., Nemchenok, I., Panas, K., Pandola, L., Pelczar, K., Pertoldi, L., Piseri, P., Pullia, A., Ransom, C., Rauscher, L., Riboldi, S., Rumyantseva, N., Sada, C., Salamida, F., Schönert, S., Schreiner, J., Schütt, M., Schütz, A-K., Schulz, O., Schwarz, M., Schwingenheuer, B., Selivanenko, O., Shevchik, E., Shirchenko, M., Simgen, H., Smolnikov, A., Stukov, D., Vasenko, A. A., Veresnikova, A., Vignoli, C., von Sturm, K., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zatschler, B., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zschocke, A., Zsigmond, A. J., and Zuzel, K. Zuber G.
Subjects: High Energy Physics - Experiment (hep-ex), Physics::Instrumentation and Detectors, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: We present the first search for bosonic super-WIMPs as keV-scale dark matter candidates performed with the GERDA experiment. GERDA is a neutrinoless double-beta decay experiment which operates high-purity germanium detectors enriched in $^{76}$Ge in an ultra-low background environment at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN in Italy. Searches were performed for pseudoscalar and vector particles in the mass region from 60 keV/c$^2$ to 1 MeV/c$^2$. No evidence for a dark matter signal was observed, and the most stringent constraints on the couplings of super-WIMPs with masses above 120 keV/c$^2$ have been set. As an example, at a mass of 150 keV/c$^2$ the most stringent direct limits on the dimensionless couplings of axion-like particles and dark photons to electrons of $g_{ae} < 3 \cdot 10^{-12}$ and ${\alpha'}/{\alpha} < 6.5 \cdot 10^{-24}$ at 90% credible interval, respectively, were obtained., Comment: 6 pages, 3 figures, submitted to Physical Review Letters, added list of authors, updated ref. [21]
Published: 2020
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20. First results from the CRESST-III low-mass dark matter program

Author: CRESST Collaboration, Abdelhameed, A. H., Angloher, G., Bauer, P., Bento, A., Bertoldo, E., Bucci, C., Canonica, L., D'Addabbo, A., Defay, X., Di Lorenzo, S., Erb, A., Feilitzsch, F. v., Fichtinger, S., Iachellini, N. Ferreiro, Fuss, A., Gorla, P., Hauff, D., Jochum, J., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Mokina, V., Mondragon, E., Münster, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Pröbst, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schipperges, V., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Türkoglu, C., Usherov, I., Willers, M., and Zema, V.
Subjects: Physics, Scintillation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Dark Matter, Cryogeny, Calorimeter (particle physics), Phonon, Physics::Instrumentation and Detectors, Dark matter, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Nuclear physics, Recoil, Particle, Dark Matter, Cryogeny, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Light dark matter, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The CRESST experiment is a direct dark matter search which aims to measure interactions of potential dark matter particles in an earth-bound detector. With the current stage, CRESST-III, we focus on a low energy threshold for increased sensitivity towards light dark matter particles. In this manuscript we describe the analysis of one detector operated in the first run of CRESST-III (05/2016-02/2018) achieving a nuclear recoil threshold of 30.1eV. This result was obtained with a 23.6g CaWO$_4$ crystal operated as a cryogenic scintillating calorimeter in the CRESST setup at the Laboratori Nazionali del Gran Sasso (LNGS). Both the primary phonon/heat signal and the simultaneously emitted scintillation light, which is absorbed in a separate silicon-on-sapphire light absorber, are measured with highly sensitive transition edge sensors operated at ~15mK. The unique combination of these sensors with the light element oxygen present in our target yields sensitivity to dark matter particle masses as low as 160MeV/c$^2$., 9 pages, 9 figures
Published: 2019

21. A new experimental approach to probe QCD axion dark matter in the mass range above 40µeV

Author: The MADMAX Collaboration, Brun, P., Caldwell, A., Chevalier, L., Dvali, G., Freire, P., Garutti, E., Heyminck, S., Jochum, J., Knirck, S., Kramer, M., Krieger, C., Lasserre, T., Lee, C., Li, X., Lindner, A., Majorovits, B., Martens, S., Matysek, M., Millar, A., Raffelt, G., Redondo, J., Reimann, O., Ringwald, A., Saikawa, K., Schaffran, J., Schmidt, A., Sch��tte-Engel, J., Steffen, F., Strandhagen, C., and Wieching, G.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), High Energy Physics - Experiment (hep-ex), High Energy Physics::Theory, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: The axion emerges in extensions of the Standard Model that explain the absence of CP violation in the strong interactions. Simultaneously, it can provide naturally the cold dark matter in our universe. Several searches for axions and axion-like particles (ALPs) have constrained the corresponding parameter space over the last decades but no unambiguous hints of their existence have been found. The axion mass range below 1 meV remains highly attractive and a well motivated region for dark matter axions. In this White Paper we present a description of a new experiment based on the concept of a dielectric haloscope for the direct search of dark matter axions in the mass range of 40 to 400 $��$eV. This MAgnetized Disk and Mirror Axion eXperiment (MADMAX) will consist of several parallel dielectric disks, which are placed in a strong magnetic field and with adjustable separations. This setting is expected to allow for an observable emission of axion induced electromagnetic waves at a frequency between 10 to 100 GHz corresponding to the axion mass.
Published: 2019

22. Probing Majorana neutrinos with double-$��$ decay

Author: GERDA Collaboration, Agostini, M., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Bellotti, E., Belogurov, S., Bettini, A., Bezrukov, L., Borowicz, D., Brudanin, V., Brugnera, R., Caldwell, A., Cattadori, C., Chernogorov, A., Comellato, T., D'Andrea, V., Demidova, E. V., Di Marco, N., Domula, A., Doroshkevich, E., Egorov, V., Falkenstein, R., Fomina, M., Gangapshev, A., Garfagnini, A., Giordano, M., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenm��ller, J., Hegai, A., Heisel, M., Hemmer, S., Hiller, R., Hofmann, W., Hult, M., Inzhechik, L. V., Cs��thy, J. Janicsk��, Jochum, J., Junker, M., Kazalov, V., Kerma��dic, Y., Kihm, T., Kirpichnikov, I. V., Kirsch, A., Kish, A., Klimenko, A., Knei��l, R., Kn��pfle, K. T., Kochetov, O., Kornoukhov, V. N., Krause, P., Kuzminov, V. V., Laubenstein, M., Lazzaro, A., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Miloradovic, M., Mingazheva, R., Misiaszek, M., Moseev, P., Nemchenok, I., Panas, K., Pandola, L., Pelczar, K., Pertoldi, L., Piseri, P., Pullia, A., Ransom, C., Riboldi, S., Rumyantseva, N., Sada, C., Sala, E., Salamida, F., Schmitt, C., Schneider, B., Sch��nert, S., Sch��tz, A. -K., Schulz, O., Schwingenheuer, B., Schwarz, M., Selivanenko, O., Shevchik, E., Shirchenko, M., Simgen, H., Smolnikov, A., Stanco, L., Stukov, D., Vanhoefer, L., Vasenko, A. A., Veresnikova, A., von Sturm, K., Wagner, V., Wegmann, A., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zschocke, A., Zsigmond, A. J., Zuber, K., and Zuzel, G.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex)
Abstract: A discovery that neutrinos are not the usual Dirac but Majorana fermions, i.e. identical to their antiparticles, would be a manifestation of new physics with profound implications for particle physics and cosmology. Majorana neutrinos would generate neutrinoless double-$��$ ($0��$) decay, a matter-creating process without the balancing emission of antimatter. So far, 0$��$ decay has eluded detection. The GERDA collaboration searches for the $0��$ decay of $^{76}$Ge by operating bare germanium detectors in an active liquid argon shield. With a total exposure of 82.4 kg$\cdot$yr, we observe no signal and derive a lower half-life limit of T$_{1/2}$ > 0.9$\cdot$10$^{26}$ yr (90% C.L.). Our T$_{1/2}$ sensitivity assuming no signal is 1.1$\cdot$10$^{26}$ yr. Combining the latter with those from other $0��$ decay searches yields a sensitivity to the effective Majorana neutrino mass of 0.07 - 0.16 eV, with corresponding sensitivities to the absolute mass scale in $��$ decay of 0.15 - 0.44 eV, and to the cosmological relevant sum of neutrino masses of 0.46 - 1.3 eV., Authors' main+supplementary text: 13+28 pages, 3+12 figures, 1+7 tables. Definite version to be published in Science
Published: 2019
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23. Description of CRESST-III Data

Author: CRESST Collaboration, Abdelhameed, A. H., Angloher, G., Bauer, P., Bento, A., Bertoldo, E., Bucci, C., Canonica, L., D'Addabbo, A., Defay, X., Di Lorenzo, S., Erb, A., Feilitzsch, F. v., Fichtinger, S., Iachellini, N. Ferreiro, Fuss, A., Gorla, P., Hauff, D., Jochum, J., Kinast, A., Kluck, H., Kraus, H., Langenkämper, A., Mancuso, M., Mokina, V., Mondragon, E., Münster, A., Olmi, M., Ortmann, T., Pagliarone, C., Pattavina, L., Petricca, F., Potzel, W., Pröbst, F., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schipperges, V., Schmiedmayer, D., Schönert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Türkoglu, C., Usherov, I., Willers, M., and Zema, V.
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: In CRESST-III, 10 cryogenic detector modules optimized for low energy thresholds were operated for almost two years (May 2016 - February 2018). Together with this document we are publishing data from the best performing detector module which has a nuclear recoil threshold of 30.1eV. With this data-set we were able to set limits on the cross-section for spin-dependent and spin-independent elastic scattering of dark matter particles off nuclei at dark matter masses down to 160MeV/c$^2$. We publish the energies of all events after data selection as well as of all events within the acceptance region for dark-matter searches. In this document we describe how to use these data sets., Comment: Added appendix with information for better reproducibility
Published: 2019
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24. Characterization of 30 $^{76}$Ge enriched Broad Energy Ge detectors for GERDA Phase II

Author: GERDA collaboration, Agostini, M., Bakalyarov, A., Andreotti, E., Balata, M., Barabanov, I., Baudis, L., Barros, N., Bauer, C., Bellotti, E., Belogurov, S., Benato, G., Bettini, A., Bezrukov, L., Bode, T., Borowicz, D., Brudanin, V., Brugnera, R., Budjáš, D., Caldwell, A., Cattadori, C., Chernogorov, A., D'Andrea, V., Demidova, E., Di Marco, N., Domula, A., Doroshkevich, E., Egorov, V., Falkenstein, R., Freund, K., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenmüller, J., Hegai, A., Heisel, M., Hemmer, S., Hiller, R., Hofmann, W., Hult, M., Inzhechik, L., Csáthy, J., Jochum, J., Junker, M., Kazalov, V., Kermaidic, Y., Kihm, T., Kirpichnikov, I., Kirsch, A., Kish, A., Klimenko, A., Kneißl, R., Knoepfle, K., Kochetov, O., Kornoukhov, V., Kuzminov, V., Laubenstein, M., Lazzaro, A., Lehnert, B., Liao, Y., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Miloradovic, M., Mingazheva, R., Misiaszek, M., Moseev, P., Nemchenok, I., Panas, K., Pandola, L., Pelczar, K., Pullia, A., Ransom, C., Riboldi, S., Rumyantseva, N., Sada, C., Salamida, F., Salathe, M., Schmitt, C., Schneider, B., Schönert, S., Schütz, A., Schulz, O., Schwingenheuer, B., Selivanenko, O., Shevchik, E., Shirchenko, M., Simgen, H., Smolnikov, A., Stanco, L., Ur, C., Vanhoefer, L., Vasenko, A., Veresnikova, A., von Sturm, K., Wagner, V., Wegmann, A., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zhitnikov, I., Zhukov, S., Zinatulina, D., Zsigmond, A., Zuber, K., and Zuzel, G.
Subjects: Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), GERDA - Abteilung Hofmann
Abstract: The GERmanium Detector Array (GERDA) is a low background experiment located at the Laboratori Nazionali del Gran Sasso in Italy, which searches for neutrinoless double beta decay of $^{76}$Ge into $^{76}$Se+2e$^-$. GERDA has been conceived in two phases. Phase II, which started in December 2015, features several novelties including 30 new Ge detectors. These were manufactured according to the Broad Energy Germanium (BEGe) detector design that has a better background discrimination capability and energy resolution compared to formerly widely-used types. Prior to their installation, the new BEGe detectors were mounted in vacuum cryostats and characterized in detail in the HADES underground laboratory in Belgium. This paper describes the properties and the overall performance of these detectors during operation in vacuum. The characterization campaign provided not only direct input for GERDA Phase II data collection and analyses, but also allowed to study detector phenomena, detector correlations as well as to test the strength of pulse shape simulation codes., Comment: 29 pages, 18 figures
Published: 2019
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25. Geant4-based electromagnetic background model for the CRESST dark matter experiment

Author: CRESST Collaboration, Abdelhameed, A. H., Angloher, G., Bauer, P., Bento, A., Bertoldo, E., Breier, R., Bucci, C., Canonica, L., D'Addabbo, A., Di Lorenzo, S., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Fichtinger, S., Fuss, A., Gorla, P., Hauff, D., Je��kovsk��, M., Jochum, J., Kaizer, J., Kinast, A., Kluck, H., Kraus, H., Langenk��mper, A., Mancuso, M., Mokina, V., Mondrag��n, E., Olmi, M., Ortmann, T., Pagliarone, C., Palu��ov��, V., Pattavina, L., Petricca, F., Potzel, W., Povinec, P., Pr��bst, F., Reindl, F., Rothe, J., Sch��ffner, K., Schieck, J., Schipperges, V., Schmiedmayer, D., Sch��nert, S., Schwertner, C., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., T��rko��lu, C., Usherov, I., Willers, M., Zema, V., and Zeman, J.
Subjects: Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Regular Article - Experimental Physics, Monte Carlo method, Dark matter, Phase (waves), FOS: Physical sciences, lcsh:Astrophysics, 01 natural sciences, Computer Science::Digital Libraries, Nuclear physics, Cryogenic Rare Event Search with Superconducting Thermometers, lcsh:QB460-466, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010303 astronomy & astrophysics, Engineering (miscellaneous), Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, Elastic scattering, Range (particle radiation), 010308 nuclear & particles physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, ddc, lcsh:QC770-798, Astrophysics - Instrumentation and Methods for Astrophysics, Energy (signal processing)
Abstract: The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) dark matter search experiment aims for the detection of dark matter particles via elastic scattering off nuclei in $\mathrm{CaWO_4}$ crystals. To understand the CRESST electromagnetic background due to the bulk contamination in the employed materials, a model based on Monte Carlo simulations was developed using the Geant4 simulation toolkit. The results of the simulation are applied to the TUM40 detector module of CRESST-II phase 2. We are able to explain up to $(68 \pm 16)\,\mathrm{\%}$ of the electromagnetic background in the energy range between $1\,\mathrm{keV}$ and $40\,\mathrm{keV}$., Comment: 19 pages, 12 figures
Published: 2018

26. The prototype detection unit of the KM3NeT detector

Author: KM3NeT Collaboration, Adrián-Martínez, S., Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E. G., Androulakis, G. C., Anghinolfi, M., Anton, G., Anvar, S., Ardid, M., Avgitas, T., Balasi, K., Band, H., Barbarino, G., Barbarito, E., Barbato, F., Baret, B., Baron, S., Barrios, J., Belias, A., Berbee, E., Berg, A. M. van den, Berkien, A., Bertin, V., Beurthey, S., van Beveren, V., Beverini, N., Biagi, S., Biagioni, A., Bianucci, S., Billault, M., Birbas, A., Rookhuizen, H. Boer, Bormuth, R., Bouché, V., Bouhadef, B., Bourlis, G., Boutonnet, C., Bouwhuis, M., Bozza, C., Bruijn, R., Brunner, J., Cacopardo, G., Caillat, L., Calamai, M., Calvo, D., Capone, A., Caramete, L., Caruso, F., Cecchini, S., Ceres, A., Cereseto, R., Champion, C., Château, F., Chiarusi, T., Christopoulou, B., Circella, M., Classen, L., Cocimano, R., Coleiro, A., Colonges, S., Coniglione, R., Cosquer, A., Costa, M., Coyle, P., Creusot, A., Cuttone, G., D'Amato, C., D'Amico, A., De Bonis, G., De Rosa, G., Deniskina, N., Destelle, J. -J., Distefano, C., Di Capua, F., Donzaud, C., Dornic, D., Dorosti-Hasankiadeh, Q., Drakopoulou, E., Drouhin, D., Drury, L., Durand, D., Eberl, T., Elsaesser, D., Enzenhöfer, A., Fermani, P., Fusco, L. A., Gajanana, D., Gal, T., Galatà, S., Garufi, F., Gebyehu, M., Giordano, V., Gizani, N., GraciaRuiz, R., Graf, K., Grasso, R., Grella, G., Grmek, A., Habel, R., van Haren, H., Heid, T., Heijboer, A., Heine, E., Henry, S., Hernández-Rey, J. J., Herold, B., Hevinga, M. A., van der Hoek, M., Hofestädt, J., Hogenbirk, J., Hugon, C., Hößl, J., Imbesi, M., James, C. W., Jansweijer, P., Jochum, J., de Jong, M., Jongen, M., Kadler, M., Kalekin, O., Kappes, A., Kappos, E., Katz, U., Kavatsyuk, O., Keller, P., Kieft, G., Koffeman, E., Kok, H., Kooijman, P., Koopstra, J., Korporaal, A., Kouchner, A., Kreykenbohm, I., Kulikovskiy, V., Lahmann, R., Lamare, P., Larosa, G., Lattuada, D., Provost, H. Le, Leismüller, K. P., Leisos, A., Lenis, D., Leonora, E., LindseyClark, M., Alvarez, C. D. Llorens, Löhner, H., Lonardo, A., Loucatos, S., Louis, F., Maccioni, E., Mannheim, K., Manolopoulos, K., Margiotta, A., Mariş, O., Markou, C., Martínez-Mora, J. A., Martini, A., Masullo, R., Melis, K. W., Michael, T., Migliozzi, P., Migneco, E., Miraglia, A., Mollo, C. M., Mongelli, M., Morganti, M., Mos, S., Moudden, Y., Musico, P., Musumeci, M., Nicolaou, C., Nicolau, C. A., Orlando, A., Orzelli, A., Papaikonomou, A., Papaleo, R., Păvălaş, G. E., Peek, H., Pellegrino, C., Pellegriti, M. G., Perrina, C., Piattelli, P., Pikounis, K., Popa, V., Pradier, Th., Priede, M., Pühlhofer, G., Pulvirenti, S., Racca, C., Raffaelli, F., Randazzo, N., Rapidis, P. A., Razis, P., Real, D., Resvanis, L., Reubelt, J., Riccobene, G., Rovelli, A., Saldaña, M., Samtleben, D. F. E., Sanguineti, M., Santangelo, A., Sapienza, P., Schmelling, J., Schnabel, J., Sciacca, V., Sedita, M., Seitz, T., Sgura, I., Simeone, F., Sipala, V., Spitaleri, A., Spurio, M., Stavropoulos, G., Steijger, J., Stolarczyk, T., Stransky, D., Taiuti, M., Terreni, G., Tézier, D., Théraube, S., Thompson, L. F., Timmer, P., Trasatti, L., Trovato, A., Tselengidou, M., Tsirigotis, A., Tzamarias, S., Tzamariudaki, E., Vallage, B., Van Elewyck, V., Vermeulen, J., Vernin, P., Vicini, P., Viola, S., Vivolo, D., Werneke, P., Wiggers, L., Wilms, J., de Wolf, E., van Wooning, R. H. L., Zonca, E., Zornoza, J. D., Zúñiga, J., Zwart, A., Adrián Martínez, S., Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E. G., Androulakis, G. C., Anghinolfi, M., Anton, G., Anvar, S., Ardid, M., Avgitas, T., Balasi, K., Band, H., Barbarino, Giancarlo, Barbarito, E., Barbato, FELICIA CARLA TIZIANA, Baret, B., Baron, S., Barrios, J., Belias, A., Berbee, E., van den Berg, A. M., Berkien, A., Bertin, V., Beurthey, S., van Beveren, V., Beverini, N., Biagi, S, Biagioni, A., Bianucci, S., Billault, M., Birbas, A., Boer Rookhuizen, H., Bormuth, R., Bouché, V., Bouhadef, B., Bourlis, G., Boutonnet, C., Bouwhuis, M., Bozza, C., Bruijn, R., Brunner, J., Cacopardo, G., Caillat, L., Calamai, M., Calvo, D., Capone, A., Caramete, L., Caruso, F., Cecchini, S., Ceres, A., Cereseto, R., Champion, C., Château, F., Chiarusi, T., Christopoulou, B., Circella, M., Classen, L., Cocimano, R., Coleiro, A., Colonges, S., Coniglione, R., Cosquer, A., Costa, M., Coyle, P., Creusot, A., Cuttone, G., D’Amato, C., D’Amico, A., De Bonis, G., DE ROSA, Gianfranca, Deniskina, N., Destelle, J. J., Distefano, C., DI CAPUA, Francesco, Donzaud, C., Dornic, D., Dorosti Hasankiadeh, Q., Drakopoulou, E., Drouhin, D., Drury, L., Durand, D., Eberl, T., Elsaesser, D., Enzenhöfer, A., Fermani, P., Fusco, L. A., Gajanana, D., Gal, T., Galatà, S., Garufi, Fabio, Gebyehu, M., Giordano, V., Gizani, N., Gracia Ruiz, R., Graf, K., Grasso, R., Grella, G., Grmek, A., Habel, R., van Haren, H., Heid, T., Heijboer, A., Heine, E., Henry, S., Hernández Rey, J. J., Herold, B., Hevinga, M. A., van der Hoek, M., Hofestädt, J., Hogenbirk, J., Hugon, C., Hößl, J., Imbesi, M., James, C. W., Jansweijer, P., Jochum, J., de Jong, M., Jongen, M., Kadler, M., Kalekin, O., Kappes, A., Kappos, E., Katz, U., Kavatsyuk, O., Keller, P., Kieft, G., Koffeman, E., Kok, H., Kooijman, P., Koopstra, J., Korporaal, A., Kouchner, A., Kreykenbohm, I., Kulikovskiy, V., Lahmann, R., Lamare, P., Larosa, G., Lattuada, D., Le Provost, H., Leismüller, K. P., Leisos, A., Lenis, D., Leonora, E., Lindsey Clark, M., Llorens Alvarez, C. D., Löhner, H., Lonardo, A., Loucatos, S., Louis, F., Maccioni, E., Mannheim, K., Manolopoulos, K., Margiotta, A., Mariş, O., Markou, C., Martínez Mora, J. A., Martini, A., Masullo, R., Melis, K. W., Michael, T., Migliozzi, Pasquale, Migneco, E., Miraglia, A., Mollo, C. M., Mongelli, M., Morganti, M., Mos, S., Moudden, Y., Musico, P., Musumeci, M., Nicolaou, C., Nicolau, C. A., Orlando, A., Orzelli, A., Papaikonomou, A., Papaleo, R., Păvălaş, G. E., Peek, H., Pellegrino, C., Pellegriti, M. G., Perrina, C., Piattelli, P., Pikounis, K., Popa, V., Pradier, T. h., Priede, M., Pühlhofer, G., Pulvirenti, S., Racca, C., Raffaelli, F., Randazzo, N., Rapidis, P. A., Razis, P., Real, D., Resvanis, L., Reubelt, J., Riccobene, G., Rovelli, A., Saldaña, M., Samtleben, D. F. E., Sanguineti, M., Santangelo, A., Sapienza, P., Schmelling, J., Schnabel, J., Sciacca, V., Sedita, M., Seitz, T., Sgura, I., Simeone, F., Sipala, V., Spitaleri, A., Spurio, M., Stavropoulos, G., Steijger, J., Stolarczyk, T., Stransky, D., Taiuti, M., Terreni, G., Tézier, D., Théraube, S., Thompson, L. F., Timmer, P., Trasatti, L., Trovato, A., Tselengidou, M., Tsirigotis, A., Tzamarias, S., Tzamariudaki, E., Vallage, B., Van Elewyck, V., Vermeulen, J., Vernin, P., Vicini, P., Viola, S., Vivolo, Daniele, Werneke, P., Wiggers, L., Wilms, J., de Wolf, E., van Wooning, R. H. L., Zonca, E., Zornoza, J. D., Zúñiga, J., Zwart, A., Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Km3Net Collaboration, Adrian-Martinez, S, Ageron, M, Aharonian, F, Aiello, S, Albert, A, Ameli, F, Anassontzis, Eg, Androulakis, Gc, Anghinolfi, M, Anton, G, Anvar, S, Ardid, M, Avgitas, T, Balasi, K, Band, H, Barbarino, G, Barbarito, E, Barbato, F, Baret, B, Baron, S, Barrios, J, Belias, A, Berbee, E, van den Berg, Am, Berkien, A, Bertin, V, Beurthey, S, van Beveren, V, Beverini, N, Biagioni, A, Bianucci, S, Billault, M, Birbas, A, Rookhuizen, Hb, Bormuth, R, Bouche, V, Bouhadef, B, Bourlis, G, Boutonnet, C, Bouwhuis, M, Bozza, C, Bruijn, R, Brunner, J, Cacopardo, G, Caillat, L, Calamai, M, Calvo, D, Capone, A, Caramete, L, Caruso, F, Cecchini, S, Ceres, A, Cereseto, R, Champion, C, Chateau, F, Chiarusi, T, Christopoulou, B, Circella, M, Classen, L, Cocimano, R, Coleiro, A, Colonges, S, Coniglione, R, Cosquer, A, Costa, M, Coyle, P, Creusot, A, Cuttone, G, D'Amato, C, D'Amico, A, De Bonis, G, De Rosa, G, Deniskina, N, Destelle, Jj, Distefano, C, Di Capua, F, Donzaud, C, Dornic, D, Dorosti-Hasankiadeh, Q, Drakopoulou, E, Drouhin, D, Drury, L, Durand, D, Eberl, T, Elsaesser, D, Enzenhofer, A, Fermani, P, Fusco, La, Gajanana, D, Gal, T, Galata, S, Garufi, F, Gebyehu, M, Giordano, V, Gizani, N, Ruiz, Rg, Graf, K, Grasso, R, Grella, G, Grmek, A, Habel, R, van Haren, H, Heid, T, Heijboer, A, Heine, E, Henry, S, Hernandez-Rey, Jj, Herold, B, Hevinga, Ma, van der Hoek, M, Hofestadt, J, Hogenbirk, J, Hugon, C, Hossl, J, Imbesi, M, James, Cw, Jansweijer, P, Jochum, J, de Jong, M, Jongen, M, Kadler, M, Kalekin, O, Kappes, A, Kappos, E, Katz, U, Kavatsyuk, O, Keller, P, Kieft, G, Koffeman, E, Kok, H, Kooijman, P, Koopstra, J, Korporaal, A, Kouchner, A, Kreykenbohm, I, Kulikovskiy, V, Lahmann, R, Lamare, P, Larosa, G, Lattuada, D, Le Provost, H, Leismuller, Kp, Leisos, A, Lenis, D, Leonora, E, Clark, Ml, Alvarez, Cdl, Lohner, H, Lonardo, A, Loucatos, S, Louis, F, Maccioni, E, Mannheim, K, Manolopoulos, K, Margiotta, A, Maris, O, Markou, C, Martinez-Mora, Ja, Martini, A, Masullo, R, Melis, Kw, Michael, T, Migliozzi, P, Migneco, E, Miraglia, A, Mollo, Cm, Mongelli, M, Morganti, M, Mos, S, Moudden, Y, Musico, P, Musumeci, M, Nicolaou, C, Nicolau, Ca, Orlando, A, Orzelli, A, Papaikonomou, A, Papaleo, R, Pavalas, Ge, Peek, H, Pellegrino, C, Pellegriti, Mg, Perrina, C, Piattelli, P, Pikounis, K, Popa, V, Pradier, T, Priede, M, Puhlhofer, G, Pulvirenti, S, Racca, C, Raffaelli, F, Randazzo, N, Rapidis, Pa, Razis, P, Real, D, Resvanis, L, Reubelt, J, Riccobene, G, Rovelli, A, Saldana, M, Samtleben, Dfe, Sanguineti, M, Santangelo, A, Sapienza, P, Schmelling, J, Schnabel, J, Sciacca, V, Sedita, M, Seitz, T, Sgura, I, Simeone, F, Sipala, V, Spitaleri, A, Spurio, M, Stavropoulos, G, Steijger, J, Stolarczyk, T, Stransky, D, Taiuti, M, Terreni, G, Tezier, D, Theraube, S, Thompson, Lf, Timmer, P, Trasatti, L, Trovato, A, Tselengidou, M, Tsirigotis, A, Tzamarias, S, Tzamariudaki, E, Vallage, B, Van Elewyck, V, Vermeulen, J, Vernin, P, Vicini, P, Viola, S, Vivolo, D, Werneke, P, Wiggers, L, Wilms, J, de Wolf, E, van Wooning, Rhl, Zonca, E, Zornoza, Jd, Zuniga, J, and Zwart, A
Subjects: Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, KM3NeT, detection unit, neutrino telescope, water Cherenkov, NEUTRINO TELESCOPE, PROJECT, MUONS, PMTS, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Neutrino telescope, KM3, High Energy Physics - Experiment, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], High Energy Physics - Experiment (hep-ex), PMTs, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Neutrino telescope, KM3, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Astrophysics - Instrumentation and Methods for Astrophysics, Engineering (miscellaneous), Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: A prototype detection unit of the KM3NeT deep-sea neutrino telescope has been installed at 3500m depth 80km offshore the Italian coast. KM3NeT in its final configuration will contain several hundreds of detection units. Each detection unit is a mechanical structure anchored to the sea floor, held vertical by a submerged buoy and supporting optical modules for the detection of Cherenkov light emitted by charged secondary particles emerging from neutrino interactions. This prototype string implements three optical modules with 31 photomultiplier tubes each. These optical modules were developed by the KM3NeT Collaboration to enhance the detection capability of neutrino interactions. The prototype detection unit was operated since its deployment in May 2014 until its decommissioning in July 2015. Reconstruction of the particle trajectories from the data requires a nanosecond accuracy in the time calibration. A procedure for relative time calibration of the photomultiplier tubes contained in each optical module is described. This procedure is based on the measured coincidences produced in the sea by the 40K background light and can easily be expanded to a detector with several thousands of optical modules. The time offsets between the different optical modules are obtained using LED nanobeacons mounted inside them. A set of data corresponding to 600 hours of livetime was analysed. The results show good agreement with Monte Carlo simulations of the expected optical background and the signal from atmospheric muons. An almost background-free sample of muons was selected by filtering the time correlated signals on all the three optical modules. The zenith angle of the selected muons was reconstructed with a precision of about 3{\deg}., Comment: Accepted for publication by EPJ C
Published: 2015
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27. Improved limit on axion-like particles from $\gamma$-ray data on Perseus cluster

Author: Malyshev , D., Neronov , A., Semikoz , D., Santangelo , A., Jochum , J., AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), AstroParticule et Cosmologie ( APC - UMR 7164 ), and Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA )
Subjects: gamma ray: propagation, Cherenkov Telescope Array, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, cluster: coupling, Astrophysics::Cosmology and Extragalactic Astrophysics, dark matter: density, Physics::Geophysics, High Energy Physics - Phenomenology (hep-ph), Astrophysics::Galaxy Astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), energy: high, photon, galaxy: radio wave, magnetic field: background, coupling constant, sensitivity, MAGIC, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], axion-like particles, galaxy: cluster, [ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: International audience; Coupling of axion-like particles (ALPs) to photons in the presence of background magnetic field affects propagation of gamma-rays through magnetized environments. This results in modification in the gamma-ray spectra of sources in or behind galaxy clusters. We search for the ALP induced effects in the Fermi/LAT and MAGIC telescope spectra of the radio galaxy NGC 1275 embedded in Perseus galaxy cluster. We report an order-of-magnitude improved upper limit on the ALP-photon coupling constant in the 0.1-10 neV mass range from non-detection of the ALP imprints on the gamma-ray spectra. The improved upper limit extends into the coupling range in which the ALP particles could form the dark matter. We estimate the sensitivity improvements for the ALP search achievable with extension of the measurements to lower and higher energies with e-ASTROGAM and CTA and show that the gamma-ray probe of ALPs with masses in $10^{-11}-10^{-7}$ eV range will be have order-of-magnitude better sensitivity compared to ground-based experiment IAXO.
Published: 2018

28. Yields and production rates of cosmogenic 9Li and 8He measured with the Double Chooz near and far detectors

Author: The Double Chooz collaboration, Kerret, H., Abrahão, T., Almazan, H., Dos Anjos, J. C., Appel, S., Barriere, J. C., Bekman, I., Bezerra, T. J. C., Bezrukov, L., Blucher, E., Brugière, T., Buck, C., Busenitz, J., Cabrera, A., Cerrada, M., Chauveau, E., Chimenti, P., Corpace, O., Dawson, J. V., Djurcic, Z., Etenko, A., Franco, D., Furuta, H., Gil-Botella, I., Givaudan, A., Gomez, H., Gonzalez, L. F. G., Goodman, M. C., Hara, T., Haser, J., Hellwig, D., Hourlier, A., Ishitsuka, M., Jochum, J., Jollet, C., Kale, K., Kaneda, M., Karakac, M., Kawasaki, T., Kemp, E., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Lastoria, C., Lhuillier, D., Lima, H. P., Lindner, M., López-Castaño, J. M., Losecco, J. M., Lubsandorzhiev, B., Maeda, J., Mariani, C., Maricic, J., Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Navas-Nicolás, D., Novella, P., Nunokawa, H., Oberauer, L., Obolensky, M., Onillon, A., Oralbaev, A., Palomares, C., Pepe, I. M., Pronost, G., Reichenbacher, J., Reinhold, B., Settimo, M., Schönert, S., Stefan Schoppmann, Scola, L., Sharankova, R., Sibille, V., Sinev, V., Skorokhvatov, M., Soldin, P., Stahl, A., Stancu, I., Stokes, L. F. F., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Tonazzo, A., Veyssiere, C., Viaud, B., Vivier, M., Wagner, S., Wiebusch, C., Wurm, M., Yang, G., Yermia, F., AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Neutrino de Champagne Ardenne (LNCA - UMS 3263), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Double Chooz, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Center for Neutrino Physics
Subjects: Nuclear and High Energy Physics, Particle physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, scintillation counter: liquid, far detector, muon nucleus: nuclear reaction, FOS: Physical sciences, nuclide: yield, CHOOZ, Scintillator, 7. Clean energy, 01 natural sciences, Power law, Spectral line, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), near detector, 0103 physical sciences, KamLAND, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], fission, ddc:530, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Borexino, Physics, muon: energy, Muon, 010308 nuclear & particles physics, background, Instrumentation and Detectors (physics.ins-det), Neutrino Detectors and Telescopes (experiments), Double Chooz, neutrino: detector, muon: cosmic radiation, lcsh:QC770-798, Production (computer science), High Energy Physics::Experiment, nuclear reactor, numerical calculations: Monte Carlo, Energy (signal processing), experimental results
Abstract: The yields and production rates of the radioisotopes $^9$Li and $^8$He created by cosmic muon spallation on $^{12}$C, have been measured by the two detectors of the Double Chooz experiment. The identical detectors are located at separate sites and depths, which means they are subject to different muon spectra. The near (far) detector has an overburden of $\sim$120 m.w.e. ($\sim$300 m.w.e.) corresponding to a mean muon energy of $32.1\pm2.0\,\mathrm{GeV}$ ($63.7\pm5.5\,\mathrm{GeV}$). Comparing the data to a detailed simulation of the $^9$Li and $^8$He decays, the contribution of the $^8$He radioisotope at both detectors is found to be compatible with zero. The observed $^9$Li yields in the near and far detectors are $5.51\pm0.51$ and $7.90\pm0.51$, respectively, in units of $10^{-8}\mu ^{-1} \mathrm{g^{-1} cm^{2} }$. The shallow overburdens of the near and far detectors give a unique insight when combined with measurements by KamLAND and Borexino to give the first multi--experiment, data driven relationship between the $^9$Li yield and the mean muon energy according to the power law $Y = Y_0( / 1\,\mathrm{GeV})^{\overline{\alpha}}$, giving $\overline{\alpha}=0.72\pm0.06$ and $Y_0=(0.43\pm0.11)\times 10^{-8}\mu ^{-1} \mathrm{g^{-1} cm^{2}}$. This relationship gives future liquid scintillator based experiments the ability to predict their cosmogenic $^9$Li background rates., Comment: 15 pages, 5 figures
Published: 2018
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29. Characterization of the Spontaneous Light Emission of the PMTs used in the Double Chooz Experiment

Author: Double Chooz collaboration, Abe, Y., Abrahão, T., Almazan, H., Alt, C., Appel, S., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukov, L., Blucher, E., Brugière, T., Buck, C., Busenitz, J., Cabrera, A., Calvo, E., Camilleri, L., Carr, R., Cerrada, M., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, J. M., Crespo-Anadón, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., de Kerret, H., Dhooghe, J., Dietrich, D., Djurcic, Z., Anjos, J. C. dos, Dracos, M., Etenko, A., Fallot, M., Felde, J., Fernandes, S. M., Fischer, V., Franco, D., Franke, M., Furuta, H., Gil-Botella, I., Giot, L., Göger-Neff, M., Gomez, H., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Haag, N., Hara, T., Haser, J., Hellwig, D., Hofmann, M., Horton-Smith, G. A., Hourlier, A., Ishitsuka, M., Jiménez, S., Jochum, J., Jollet, C., Kaether, F., Kalousis, L. N., Kamyshkov, Y., Kaneda, M., Kaplan, D. M., Kawasaki, T., Kemp, E., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima Jr, H. P., Lindner, M., López-Castaño, J. M., LoSecco, J. M., Lubsandorzhiev, B., Lucht, S., Maeda, J., Mariani, C., Maricic, J., Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Navas-Nicolás, D., Novella, P., Nunokawa, H., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Röhling, M., Roncin, R., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schönert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Soiron, M., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., von Feilitzsch, F., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Wurm, M., Yang, G., Yermia, F., Zimmer, V., Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Double Chooz, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Massachusetts Institute of Technology. Department of Physics, Conrad, Janet Marie, Spitz, Joshua B., Terao, Kazuhiro, Abe, Y, Abrahao, T, Alt, C, Appel, S, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Brugiere, T, Buck, C, Busenitz, J, Cabrera, A, Calvo, E, Camilleri, L, Carr, R, Cerrada, M, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, De Kerret, H, Dhooghe, J, Dietrich, D, Djurcic, Z, Dos Anjos, J, Dracos, M, Etenko, A, Fallot, M, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gomez, H, Gonzalez, L, Goodenough, L, Goodman, M, Haag, N, Hara, T, Haser, J, Hellwig, D, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jimenez, S, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaneda, M, Kaplan, D, Kawasaki, T, Kemp, E, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Letourneau, A, Lhuillier, D, Lima, H, Lindner, M, Lopez-Castano, J, Losecco, J, Lubsandorzhiev, B, Lucht, S, Maeda, J, Mariani, C, Maricic, J, Martino, J, Matsubara, T, Mention, G, Meregaglia, A, Miletic, T, Milincic, R, Minotti, A, Nagasaka, Y, Navas-Nicolas, D, Novella, P, Nunokawa, H, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Soiron, M, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Thi, H, Valdiviesso, G, Vassilopoulos, N, Verdugo, A, Veyssiere, C, Vivier, M, Von Feilitzsch, F, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: Photomultiplier, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, CHOOZ, 01 natural sciences, Signal, High Energy Physics - Experiment, Neutrino detector, High Energy Physics - Experiment (hep-ex), Optics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Instrumentation, Mathematical Physics, Physics, Detector design and construction technologies and material, 010308 nuclear & particles physics, business.industry, Detector, High voltage, Instrumentation and Detectors (physics.ins-det), Amplitude, Light emission, business, Photoemission, Noise (radio)
Abstract: During the commissioning of the first of the two detectors of the Double Chooz experiment, an unexpected and dominant background caused by the emission of light inside the optical volume has been observed. A specific study of the ensemble of phenomena called "Light Noise" has been carried out in-situ, and in an external laboratory, in order to characterize the signals and to identify the possible processes underlying the effect. Some mechanisms of instrumental noise originating from the PMTs were identified and it has been found that the leading one arises from the light emission localized on the photomultiplier base and produced by the combined effect of heat and high voltage across the transparent epoxy resin covering the electric components. The correlation of the rate and the amplitude of the signal with the temperature has been observed. For the first detector in operation the induced background has been mitigated using online and offline analysis selections based on timing and light pattern of the signals, while a modification of the photomultiplier assembly has been implemented for the second detector in order to blacken the PMT bases., 24 pages, 24 figures. Minor revision to be published in the Journal of Instrumentation (JINST), Corresponding author: R. Santorelli
Published: 2016
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30. First results on low-mass dark matter from the CRESST-III experiment

Author: CRESST Collaboration, Petricca, F., Angloher, G., Bauer, P., Bento, A., Bucci, C., Canonica, L., Defay, X., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., G��tlein, A., Hauff, D., Jochum, J., Kiefer, M., Kluck, H., Kraus, H., Lanfranchi, J. C., Lagenk��mper, A., Loebell, J., Mancuso, M., Mondragon, E., M��nster, A., Pagliarone, C., Potzel, W., Pr��bst, F., Puig, R., Reindl, F., Rothe, J., Sch��ffner, K., Schieck, J., Sch��nert, S., Seidel, W., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Thi, H. H. Trinh, T��rko��lu, C., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., and W��strich, M.
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, High Energy Physics::Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The CRESST experiment, located at Laboratori Nazionali del Gran Sasso in Italy, searches for dark matter particles via their elastic scattering off nuclei in a target material. The CRESST target consists of scintillating CaWO$_4$ crystals, which are operated as cryogenic calorimeters at millikelvin temperatures. Each interaction in the CaWO$_4$ target crystal produces a phonon signal and a light signal that is measured by a second cryogenic calorimeter. Since the CRESST-II result in 2015, the experiment is leading the field of direct dark matter search for dark matter masses below 1.7\,GeV/$c^2$, extending the reach of direct searches to the sub-GeV/$c^2$ mass region. For CRESST-III, whose Phase 1 started in July 2016, detectors have been optimized to reach the performance required to further probe the low-mass region with unprecedented sensitivity. In this contribution the achievements of the CRESST-III detectors will be discussed together with preliminary results and perspectives of Phase 1., XV International Conference on Topics in Astroparticle and Underground Physics, TAUP2017, submitted to Journal of Physics: Conference Series (JPCS)
Published: 2017

31. Description of CRESST-II data

Author: Angloher, G., Bauer, P., Bento, A., Bucci, C., Canonica, L., Defay, X., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., Gütlein, A., Hauff, D., Jochum, J., Kiefer, M., Kistner, C., Kluck, H., Kraus, H., Lanfranchi, J. -C., Loebell, J., Mancuso, M., Münster, A., Pagliarone, C., Petricca, F., Potzel, W., Pröbst, F., Puig, R., Reindl, F., Roth, S., Rottler, K., Sailer, C., Schäffner, K., Schieck, J., Schmaler, J., Scholl, S., Schönert, S., Seidel, W., Sivers, M. v., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Thi, H. H. Trinh, Türkoǧlu, C., Uffinger, M., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., Wüstrich, M., and Zöller, A.
Subjects: Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det)
Abstract: In Phase 2 of CRESST-II 18 detector modules were operated for about two years (July 2013 - August 2015). Together with this document we are publishing data from two detector modules which have been used for direct dark-matter searches. With these data-sets we were able to set world-leading limits on the cross section for spin-independent elastic scattering of dark matter particles off nuclei. We publish the energies of all events within the acceptance regions for dark-matter searches. In addition, we also publish the energies of the events within the electron-recoil band. This data set can be used to study interactions with electrons of CaWO$_4$. In this document we describe how to use these data sets. In particular, we explain the cut-survival probabilities required for comparisons of models with the data sets., Comment: Text unchanged to v2, new ancillary files added containing simulated data for the sensitivity projections of CRESST-III phase 2 with 1 tonne day exposure, additional information may be found in anc/Proj_CRESST-III-Phase2_README.txt
Published: 2017
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32. Background free search for neutrinoless double beta decay with GERDA Phase II

Author: Agostini, M., Allardt, M., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Bellotti, E., Belogurov, S., Belyaev, S. T., Benato, G., Bettini, A., Bezrukov, L., Bode, T., Borowicz, D., Brudanin, V., Brugnera, R., Caldwell, A., Cattadori, C., Chernogorov, A., D'Andrea, V., Demidova, E. V., DiMarco, N., diVacri, A., Domula, A., Doroshkevich, E., Egorov, V., Falkenstein, R., Fedorova, O., Freund, K., Frodyma, N., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hakenmüller, J., Hegai, A., Heisel, M., Hemmer, S., Hofmann, W., Hult, M., Inzhechik, L. V., Csáthy, J. Janicskó, Jochum, J., Junker, M., Kazalov, V., Kihm, T., Kirpichnikov, I. V., Kirsch, A., Kish, A., Klimenko, A., Kneißl, R., Knöpfle, K. T., Kochetov, O., Kornoukhov, V. N., Kuzminov, V. V., Laubenstein, M., Lazzaro, A., Lebedev, V. I., Lehnert, B., Liao, H. Y., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Medinaceli, E., Miloradovic, M., Mingazheva, R., Misiaszek, M., Moseev, P., Nemchenok, I., Palioselitis, D., Panas, K., Pandola, L., Pelczar, K., Pullia, A., Riboldi, S., Rumyantseva, N., Sada, C., Salamida, F., Salathe, M., Schmitt, C., Schneider, B., Schönert, S., Schreiner, J., Schulz, O., Schütz, A. -K., Schwingenheuer, B., Selivanenko, O., Shevchik, E., Shirchenko, M., Simgen, H., Smolnikov, A., Stanco, L., Vanhoefer, L., Vasenko, A. A., Veresnikova, A., von Sturm, K., Wagner, V., Walter, M., Wegmann, A., Wester, T., Wiesinger, C., Wojcik, M., Yanovich, E., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zuber, K., and Zuzel, G.
Subjects: High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: The Standard Model of particle physics cannot explain the dominance of matter over anti-matter in our Universe. In many model extensions this is a very natural consequence of neutrinos being their own anti-particles (Majorana particles) which implies that a lepton number violating radioactive decay named neutrinoless double beta ($0\nu\beta\beta$) decay should exist. The detection of this extremely rare hypothetical process requires utmost suppression of any kind of backgrounds. The GERDA collaboration searches for $0\nu\beta\beta$ decay of $^{76}$Ge ($^{76}\rm{Ge} \rightarrow\,^{76}\rm{Se} + 2e^-$) by operating bare detectors made from germanium with enriched $^{76}$Ge fraction in liquid argon. Here, we report on first data of GERDA Phase II. A background level of $\approx10^{-3}$ cts/(keV$\cdot$kg$\cdot$yr) has been achieved which is the world-best if weighted by the narrow energy-signal region of germanium detectors. Combining Phase I and II data we find no signal and deduce a new lower limit for the half-life of $5.3\cdot10^{25}$ yr at 90 % C.L. Our sensitivity of $4.0\cdot10^{25}$ yr is competitive with the one of experiments with significantly larger isotope mass. GERDA is the first $0\nu\beta\beta$ experiment that will be background-free up to its design exposure. This progress relies on a novel active veto system, the superior germanium detector energy resolution and the improved background recognition of our new detectors. The unique discovery potential of an essentially background-free search for $0\nu\beta\beta$ decay motivates a larger germanium experiment with higher sensitivity., Comment: 14 pages, 9 figures, 1 table; ; data, figures and images available at http://www.mpi-hd.mpg/gerda/public
Published: 2017
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33. Performance of a CRESST-II Detector Module with True $4��$-veto

Author: Angloher, G., Bauer, P., Bento, A., Bucci, C., Canonica, L., Defay, X., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., G��tlein, A., Hauff, D., Jochum, J., Kiefer, M., Kluck, H., Kraus, H., Lanfranchi, J. C., Langenk��mper, A., Loebell, J., Mancuso, M., M��nster, A., Pagliarone, C., Petricca, F., Potzel, W., Pr��bst, F., Reindl, F., Rothe, J., Sch��ffner, K., Schieck, J., Sch��nert, V. Schipperges S., Seidel, W., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Thi, H. H. Trinh, T��rko��lu, C., Uffinger, M., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., W��strich, M., and Z��ller, A.
Subjects: FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: Scintillating, cryogenic bolometers are widely used in the field of rare event searches. Their main advantages are an excellent energy resolution and particle identification on an event-by-event basis. The sensitivity of experiments applying this detector technique can be limited by the performance of the light channel and the presence of external backgrounds in the region of interest. In the framework of the CRESST-II experiment, we developed and successfully tested a novel detector design addressing both challenges. Using a large scale ($\approx$\unit[60]{cm$^2$}), beaker-shaped silicon light absorber, the signal height recorded in the light channel is improved by a factor 2.5 compared to conventional CRESTT-II detector modules. In combination with a large carrier crystal, a true $4��$ veto system is established which allows to tag external background sources., 7 pages, 5 fugures, submitted to EPJ-C
Published: 2017
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34. Search for low-mass Dark Matter with the CRESST Experiment

Author: Kluck, H., Angloher, G., Bauer, P., Bento, A., Bucci, C., Canonica, L., Defay, X., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., Gütlein, A., Hauff, D., Jochum, J., Kiefer, M., Kraus, H., Lanfranchi, J. -C., Langenkämper, A., Loebell, J., Mancuso, M., Mondragon, E., Münster, A., Pagliarone, C., Petricca, F., Potzel, W., Pröbst, F., Puig, R., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Seidel, W., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Thi, H. H. Trinh, Türkoğlu, C., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., and Wüstrich, M.
Subjects: CRESST Experiment, Dark Matter, FOS: Physical sciences, CRESST Experiment, Dark Matter, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: Kluck, Holger "Search for low-mass Dark Matter with the CRESST Experiment" in Proceedings of the 13th "Patras" Workshop on Axions, WIMPs and WISPs, PATRAS 2017 / Maroudas, Marios (eds.), Verlag Deutsches Elektronen-Synchrotron : 2018 ; Patras 2017 : 13th Patras Workshop on Axions, WIMPs and WISPs, 2017-05-15 - 2017-05-19, Thessaloniki 13th Patras Workshop on Axions, WIMPs and WISPs, AXION-WIMP 2017, Thessaloniki, Greece, 15 May 2017 - 19 May 2017; Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-PROC, 130-133 (2018). doi:10.3204/DESY-PROC-2017-02/kluck_holger, CRESST is a multi-stage experiment directly searching for dark matter (DM) using cryogenic $\mathrm{CaWO_4}$ crystals. Previous stages established leading limits for the spin-independent DM-nucleon cross section down to DM-particle masses $m_\mathrm{DM}$ below $1\,\mathrm{GeV/c^2}$. Furthermore, CRESST performed a dedicated search for dark photons (DP) which excludes new parameter space between DP masses $m_\mathrm{DP}$ of $300\,\mathrm{eV/c^2}$ to $700\,\mathrm{eV/c^2}$. In this contribution we will discuss the latest results based on the previous CRESST-II phase 2 and we will report on the status of the current CRESST-III phase 1: in this stage we have been operating 10 upgraded detectors with $24,\mathrm{g}$ target mass each and enhanced detector performance since summer 2016. The improved detector design in terms of background suppression and reduction of the detection threshold will be discussed with respect to the previous stage. We will conclude with an outlook on the potential of the next stage, CRESST-III phase 2., Published by Verlag Deutsches Elektronen-Synchrotron, Hamburg
Published: 2017
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35. The large enriched germanium experiment for neutrinoless double beta decay (LEGEND)

Author: LEGEND Collaboration, Abgrall, N., Abramov, A., Abrosimov, N., Abt, I., Agostini, M., Agartioglu, M., Ajjaq, A., Alvis, S. I., Avignone, F. T., Bai, X., Balata, M., Barabanov, I., Barabash, A. S., Barton, P. J., Baudis, L., Bezrukov, L., Bode, T., Bolozdynya, A., Borowicz, D., Boston, A., Boston, H., Boyd, S. T. P., Breier, R., Brudanin, V., Brugnera, R., Busch, M., Buuck, M., Caldwell, A., Caldwell, T. S., Camellato, T., Carpenter, M., Cattadori, C., Cederk��ll, J., Chan, Y. -D., Chen, S., Chernogorov, A., Christofferson, C. D., Chu, P. -H., Cooper, R. J., Cuesta, C., Demidova, E. V., Deng, Z., Deniz, M., Detwiler, J. A., Di Marco, N., Domula, A., Du, Q., Efremenko, Yu., Egorov, V., Elliott, S. R., Fields, D., Fischer, F., Galindo-Uribarri, A., Gangapshev, A., Garfagnini, A., Gilliss, T., Giordano, M., Giovanetti, G. K., Gold, M., Golubev, P., Gooch, C., Grabmayr, P., Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Gurentsov, V., Gurov, Y., Gusev, K., Hakenm��eller, J., Harkness-Brennan, L., Harvey, Z. R., Haufe, C. R., Hauertmann, L., Heglund, D., Hehn, L., Heinz, A., Hiller, R., Hinton, J., Hodak, R., Hofmann, W., Howard, S., Howe, M. A., Hult, M., Inzhechik, L. V., Cs��thy, J. Janicsk��, Janssens, R., Je��kovsk��, M., Jochum, J., Johansson, H. T., Judson, D., Junker, M., Kaizer, J., Kang, K., Kazalov, V., Kerma��dic, Y., Kiessling, F., Kirsch, A., Kish, A., Klimenko, A., Kn��pfle, K. T. K. T., Kochetov, O., Konovalov, S. I., Kontul, I., Kornoukhov, V. N., Kraetzschmar, T., Kr��ninger, K., Kumar, A., Kuzminov, V. V., Lang, K., Laubenstein, M., Lazzaro, A., Li, Y. L., Li, Y. -Y., Li, H. B., Lin, S. T., Lindner, M., Lippi, I., Liu, S. K., Liu, X., Liu, J., Loomba, D., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Ma, H., Majorovits, B., Mamedov, F., Martin, R. D., Massarczyk, R., Matthews, J. A. J., McFadden, N., Mei, D. -M., Mei, H., Meijer, S. J., Mengoni, D., Mertens, S., Miller, W., Miloradovic, M., Mingazheva, R., Misiaszek, M., Moseev, P., Myslik, J., Nemchenok, I., Nilsson, T., Nolan, P., O'Shaughnessy, C., Othman, G., Panas, K., Pandola, L., Papp, L., Pelczar, K., Peterson, D., Pettus, W., Poon, A. W. P., Povinec, P. P., Pullia, A., Quintana, X. C., Radford, D. C., Rager, J., Ransom, C., Recchia, F., Reine, A. L., Riboldi, S., Rielage, K., Rozov, S., Rouf, N. W., Rukhadze, E., Rumyantseva, N., Saakyan, R., Sala, E., Salamida, F., Sandukovsky, V., Savard, G., Sch��nert, S., Sch��tz, A. -K., Schulz, O., Schuster, M., Schwingenheuer, B., Selivanenko, O., Sevda, B., Shanks, B., Shevchik, E., Shirchenko, M., Simkovic, F., Singh, L., Singh, V., Skorokhvatov, M., Smolek, K., Smolnikov, A., Sonay, A., Spavorova, M., Stekl, I., Stukov, D., Tedeschi, D., Thompson, J., Van Wechel, T., Varner, R. L., Vasenko, A. A., Vasilyev, S., Veresnikova, A., Vetter, K., von Sturm, K., Vorren, K., Wagner, M., Wang, G. -J., Waters, D., Wei, W. -Z., Wester, T., White, B. R., Wiesinger, C., Wilkerson, J. F., Willers, M., Wiseman, C., Wojcik, M., Wong, H. T., Wyenberg, J., Xu, W., Yakushev, E., Yang, G., Yu, C. -H., Yue, Q., Yumatov, V., Zeman, J., Zeng, Z., Zhitnikov, I., Zhu, B., Zinatulina, D., Zschocke, A., Zsigmond, A. J., Zuber, K., and Zuzel, G.
Subjects: Particle physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, chemistry.chemical_element, FOS: Physical sciences, Germanium, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Physics and Astronomy (all), Double beta decay, Nuclear Matrix, Beta (velocity), Nuclear Experiment (nucl-ex), Nuclear Experiment, Physics, High Energy Physics::Phenomenology, Instrumentation and Detectors (physics.ins-det), Beta Decay, Bolometers, Lepton number, Beta Decay, Bolometers, Nuclear Matrix, MAJORANA, chemistry, High Energy Physics::Experiment, Neutrino, Order of magnitude, Energy (signal processing)
Abstract: The observation of neutrinoless double-beta decay (0${\nu}{\beta}{\beta}$) would show that lepton number is violated, reveal that neutrinos are Majorana particles, and provide information on neutrino mass. A discovery-capable experiment covering the inverted ordering region, with effective Majorana neutrino masses of 15 - 50 meV, will require a tonne-scale experiment with excellent energy resolution and extremely low backgrounds, at the level of $\sim$0.1 count /(FWHM$\cdot$t$\cdot$yr) in the region of the signal. The current generation $^{76}$Ge experiments GERDA and the MAJORANA DEMONSTRATOR utilizing high purity Germanium detectors with an intrinsic energy resolution of 0.12%, have achieved the lowest backgrounds by over an order of magnitude in the 0${\nu}{\beta}{\beta}$ signal region of all 0${\nu}{\beta}{\beta}$ experiments. Building on this success, the LEGEND collaboration has been formed to pursue a tonne-scale $^{76}$Ge experiment. The collaboration aims to develop a phased 0${\nu}{\beta}{\beta}$ experimental program with discovery potential at a half-life approaching or at $10^{28}$ years, using existing resources as appropriate to expedite physics results., Comment: Proceedings of the MEDEX'17 meeting (Prague, May 29 - June 2, 2017)
Published: 2017

36. Results on MeV-scale dark matter from a gram-scale cryogenic calorimeter operated above ground

Author: Angloher, G., Bauer, P., Bento, A., Bucci, C., Canonica, L., Defay, X., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., Gütlein, A., Hauff, D., Jochum, J., Kiefer, M., Kluck, H., Kraus, H., Lanfranchi, J. -C., Loebell, A. Langenkämper J., Mancuso, M., Mondragon, E., Münster, A., Oberauer, L., Pagliarone, C., Petricca, F., Potzel, W., Pröbst, F., Puig, R., Reindl, F., Rothe, J., Schäffner, K., Schieck, J., Schönert, S., Seidel, W., Stahlberg, M., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Thi, H. H. Trinh, Türkoglu, C., Uffinger, M., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., Wüstrich, M., and Zöller, A.
Subjects: Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Models for light dark matter particles with masses below 1 GeV/c$^2$ are a natural and well-motivated alternative to so-far unobserved weakly interacting massive particles. Gram-scale cryogenic calorimeters provide the required detector performance to detect these particles and extend the direct dark matter search program of CRESST. A prototype 0.5 g sapphire detector developed for the $\nu$-cleus experiment has achieved an energy threshold of $E_{th}=(19.7\pm 0.9)$ eV, which is one order of magnitude lower than previous results and independent of the type of particle interaction. The result presented here is obtained in a setup above ground without significant shielding against ambient and cosmogenic radiation. Although operated in a high-background environment, the detector probes a new range of light-mass dark matter particles previously not accessible by direct searches. We report the first limit on the spin-independent dark matter particle-nucleon cross section for masses between 140 MeV/c$^2$ and 500 MeV/c$^2$., Comment: 6 pages, 6 figures, v3: ancillary files added, v4: high energy spectrum (0.6-12keV) added to ancillary files
Published: 2017
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37. Deep sea tests of a prototype of the KM3NeT digital optical module

Author: Adrian-Martinez, S., Ageron, M., Aharonian, F., Aiello, S., Albert, A., Ameli, F., Anassontzis, E. G., Anghinolfi, M., Anton, G., Anvar, S., Ardid, M., Asmundis, R., Balasi, K., Band, H., Barbarino, G., Barbarito, E., Barbato, F., Baret, B., Baron, S., Belias, A., Berbee, E., Den Berg, A. M., Berkien, A., Bertin, V., Beurthey, S., Beveren, V., Beverini, N., Biagi, S., Bianucci, S., Billault, M., Birbas, A., Rookhuizen, H. Boer, Bormuth, R., Bouche, V., Bouhadef, B., Bourlis, G., Bouwhuis, M., Bozza, C., Bruijn, R., Brunner, J., Cacopardo, G., Caillat, L., Calamai, M., Calvo, D., Antonio Capone, Caramete, L., Caruso, F., Cecchini, S., Ceres, A., Cereseto, R., Champion, C., Chateau, F., Chiarusi, T., Christopoulou, B., Circella, M., Classen, L., Cocimano, R., Colonges, S., Coniglione, R., Cosquer, A., Costa, M., Coyle, P., Creusot, A., Curtil, C., Cuttone, G., D Amato, C., D Amico, A., Bonis, G., Rosa, G., Deniskina, N., Destelle, J. J., Distefano, C., Donzaud, C., Dornic, D., Dorosti-Hasankiadeh, Q., Drakopoulou, E., Drouhin, D., Drury, L., Durand, D., Eberl, T., Eleftheriadis, C., Elsaesser, D., Enzenhoefer, A., Fermani, P., Fusco, L. A., Gajana, D., Gal, T., Galata, S., Gallo, F., Garufi, F., Gebyehu, M., Giordano, V., Gizani, N., Ruiz, R. Gracia, Graf, K., Grasso, R., Grella, G., Grmek, A., Habel, R., Haren, H., Heid, T., Heijboer, A., Heine, E., Henry, S., Hernandez-Rey, J. J., Herold, B., Hevinga, M. A., Hoek, M., Hofestaedt, J., Hogenbirk, J., Hugon, C., Hoessl, J., Imbesi, M., James, C., Jansweijer, P., Jochum, J., Jong, M., Kadler, M., Kalekin, O., Kappes, A., Kappos, E., Katz, U., Kavatsyuk, O., Keller, P., Kieft, G., Koffeman, E., Kok, H., Kooijman, P., Koopstra, J., Korporaal, A., Kouchner, A., Koutsoukos, S., Kreykenbohm, I., Kulikovskiy, V., Lahmann, R., Lamare, P., Larosa, G., Lattuada, D., Le Provost, H., Leisos, A., Lenis, D., Leonora, E., Clark, M. Lindsey, Liolios, A., Llorens Alvarez, C. D., Loehner, H., Lo Presti, D., Louis, F., Maccioni, E., Mannheim, K., Manolopoulos, K., Margiotta, A., Maris, O., Markou, C., Martinez-Mora, J. A., Martini, A., Masullo, R., Michael, T., Migliozzi, P., Migneco, E., Miraglia, A., Mollo, C., Mongelli, M., Morganti, M., Mos, S., Moudden, Y., Musico, P., Musumeci, M., Nicolaou, C., Nicolau, C. A., Orlando, A., Orzelli, A., Papageorgiou, K., Papaikonomou, A., Papaleo, R., Pavalas, G. E., Peek, H., Pellegrino, C., Pellegriti, M. G., Perrina, C., Petridou, C., Piattelli, P., Pikounis, K., Popa, V., Pradier, Th, Priede, M., Puehlhofer, G., Pulvirenti, S., Racca, C., Raffaelli, F., Randazzo, N., Rapidis, P. A., Razis, P., Real, D., Resvanis, L., Reubelt, J., Riccobene, G., Rovelli, A., Royon, J., Saldana, M., Samtleben, D. F. E., Sanguineti, M., Santangelo, A., Sapienza, P., Savvidis, I., Schmelling, J., Schnabel, J., Sedita, M., Seitz, T., Sgura, I., Simeone, F., Siotis, I., Sipala, V., Solazzo, M., Spitaleri, A., Spurio, M., Stavropoulos, G., Steijger, J., Stolarczyk, T., Stransky, D., Taiuti, M., Terreni, G., Tezier, D., Theraube, S., Thompson, L. F., Timmer, P., Trapierakis, H. I., Trasatti, L., Trovato, A., Tselengidou, M., Tsirigotis, A., Tzamarias, S., Tzamariudaki, E., Vallage, B., Elewyck, V., Vermeulen, J., Vernin, P., Viola, S., Vivolo, D., Werneke, P., Wiggers, L., Wilms, J., Wolf, E., Wooning, R. H. L., Yatkin, K., Zachariadou, K., Zonca, E., Zornoza, J. D., Zuniga, J., Zwart, A., Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Groupe de Recherche en Physique des Hautes Energies (GRPHE), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-IUT de Colmar, Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Km3Net Collaboration, Research unit Astroparticle Physics, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Institut Universitaire de Technologie de Colmar-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPP), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut Universitaire de Technologie de Colmar, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), S., Adriàn Martìnez, M., Ageron, F., Aharonian, S., Aiello, A., Albert, F., Ameli, E. G., Anassontzi, M., Anghinolfi, G., Anton, S., Anvar, M., Ardid, R., de Asmundi, K., Balasi, H., Band, Barbarino, Giancarlo, E., Barbarito, Barbato, FELICIA CARLA TIZIANA, B., Baret, S., Baron, A., Belia, E., Berbee, A. M., van den Berg, A., Berkien, V., Bertin, S., Beurthey, V., van Beveren, N., Beverini, S., Biagi, S., Bianucci, M., Billault, A., Birba, H., Boer Rookhuizen, R., Bormuth, V., Bouch?, B., Bouhadef, G., Bourli, M., Bouwhui, C., Bozza, R., Bruijn, J., Brunner, G., Cacopardo, L., Caillat, M., Calamai, D., Calvo, A., Capone, L., Caramete, F., Caruso, S., Cecchini, A., Cere, R., Cereseto, C., Champion, F., Ch?teau, T., Chiarusi, B., Christopoulou, M., Circella, L., Classen, R., Cocimano, S., Colonge, R., Coniglione, A., Cosquer, M., Costa, P., Coyle, A., Creusot, C., Curtil, G., Cuttone, C., D?amato, A., D?amico, G., De Boni, DE ROSA, Gianfranca, Deniskina, Natalia, J. J., Destelle, C., Distefano, C., Donzaud, D., Dornic, Q., Dorosti Hasankiadeh, E., Drakopoulou, D., Drouhin, L., Drury, D., Durand, T., Eberl, C., Eleftheriadi, D., Elsaesser, A., Enzenhofer, P., Fermani, L. A., Fusco, D., Gajana, T., Gal, S., Galat?, F., Gallo, Garufi, Fabio, M., Gebyehu, V., Giordano, N., Gizani, R., Gracia Ruiz, K., Graf, R., Grasso, G., Grella, A., Grmek, R., Habel, H., van Haren, T., Heid, A., Heijboer, E., Heine, S., Henry, J. J., Hern?ndez Rey, B., Herold, M. A., Hevinga, M., van der Hoek, J., Hofest?dt, J., Hogenbirk, C., Hugon, J., H??l, M., Imbesi, C., Jame, P., Jansweijer, J., Jochum, M., de Jong, M., Kadler, O., Kalekin, A., Kappe, E., Kappo, U., Katz, O., Kavatsyuk, P., Keller, G., Kieft, E., Koffeman, H., Kok, P., Kooijman, J., Koopstra, A., Korporaal, A., Kouchner, S., Koutsouko, I., Kreykenbohm, V., Kulikovskiy, R., Lahmann, P., Lamare, G., Larosa, D., Lattuada, H., Le Provost, A., Leiso, D., Leni, E., Leonora, M., Lindsey Clark, A., Liolio, C. D., Llorens Alvarez, H., Lohner, D., Lo Presti, F., Loui, E., Maccioni, K., Mannheim, K., Manolopoulo, A., Margiotta, O., Mari?, C., Markou, J. A., Mart?nez Mora, A., Martini, R., Masullo, T., Michael, P., Migliozzi, E., Migneco, A., Miraglia, C., Mollo, M., Mongelli, M., Morganti, S., Mo, Y., Moudden, P., Musico, M., Musumeci, C., Nicolaou, C. A., Nicolau, A., Orlando, A., Orzelli, K., Papageorgiou, A., Papaikonomou, R., Papaleo, G. E., P?v?la?, H., Peek, C., Pellegrino, M. G., Pellegriti, C., Perrina, C., Petridou, P., Piattelli, K., Pikouni, V., Popa, Pradier, T. h., M., Priede, G., P?hlhofer, S., Pulvirenti, C., Racca, F., Raffaelli, N., Randazzo, P. A., Rapidi, P., Razi, D., Real, L., Resvani, J., Reubelt, G., Riccobene, A., Rovelli, J., Royon, M., Salda?a, D. F. E., Samtleben, M., Sanguineti, A., Santangelo, P., Sapienza, I., Savvidi, J., Schmelling, J., Schnabel, M., Sedita, T., Seitz, I., Sgura, F., Simeone, I., Sioti, V., Sipala, M., Solazzo, A., Spitaleri, M., Spurio, G., Stavropoulo, J., Steijger, T., Stolarczyk, D., Stransky, M., Taiuti, G., Terreni, D., T?zier, S., Th?raube, L. F., Thompson, P., Timmer, H. I., Trapieraki, L., Trasatti, A., Trovato, M., Tselengidou, A., Tsirigoti, S., Tzamaria, E., Tzamariudaki, B., Vallage, V., Van Elewyck, J., Vermeulen, P., Vernin, S., Viola, Vivolo, Daniele, P., Werneke, L., Wigger, J., Wilm, E., de Wolf, R. H. L., van Wooning, K., Yatkin, K., Zachariadou, E., Zonca, J. D., Zornoza, J., Zuniga, A., Zwart, S. Adrián-Martínez, M. Ageron, F. Aharonian, S. Aiello, A. Albert, F. Ameli, E. G. Anassontzi, M. Anghinolfi, G. Anton, S. Anvar, M. Ardid, R. de Asmundi, K. Balasi, H. Band, G. Barbarino, E. Barbarito, F. Barbato, B. Baret, S. Baron, A. Belia, E. Berbee, A. M. van den Berg, A. Berkien, V. Bertin, S. Beurthey, V. van Beveren, N. Beverini, S. Biagi, S. Bianucci, M. Billault, A. Birba, H. Boer Rookhuizen, R. Bormuth, V. Bouché, B. Bouhadef, G. Bourli, M. Bouwhui, C. Bozza, R. Bruijn, J. Brunner, G. Cacopardo, L. Caillat, M. Calamai, D. Calvo, A. Capone, L. Caramete, F. Caruso, S. Cecchini, A. Cere, R. Cereseto, C. Champion, F. Château, T. Chiarusi, B. Christopoulou, M. Circella, L. Classen, R. Cocimano, S. Colonge, R. Coniglione, A. Cosquer, M. Costa, P. Coyle, A. Creusot, C. Curtil, G. Cuttone, C. D’Amato, A. D’Amico, G. De Boni, G. De Rosa, N. Deniskina, J.-J. Destelle, C. Distefano, C. Donzaud, D. Dornic, Q. Dorosti-Hasankiadeh, E. Drakopoulou, D. Drouhin, L. Drury, D. Durand, T. Eberl, C. Eleftheriadi, D. Elsaesser, A. Enzenhöfer, P. Fermani, L. A. Fusco, D. Gajana, T. Gal, S. Galatà, F. Gallo, F. Garufi, M. Gebyehu, V. Giordano, N. Gizani, R. Gracia Ruiz, K. Graf, R. Grasso, G. Grella, A. Grmek, R. Habel, H. van Haren, T. Heid, A. Heijboer, E. Heine, S. Henry, J. J. Hernández-Rey, B. Herold, M. A. Hevinga, M. van der Hoek, J. Hofestädt, J. Hogenbirk, C. Hugon, J. Hößl, M. Imbesi, C. Jame, P. Jansweijer, J. Jochum, M. de Jong, M. Kadler, O. Kalekin, A. Kappe, E. Kappo, U. Katz, O. Kavatsyuk, P. Keller, G. Kieft, E. Koffeman, H. Kok, P. Kooijman, J. Koopstra, A. Korporaal, A. Kouchner, S. Koutsouko, I. Kreykenbohm, V. Kulikovskiy, R. Lahmann, P. Lamare, G. Larosa, D. Lattuada, H. Le Provost, A. Leiso, D. Leni, E. Leonora, M. Lindsey Clark, A. Liolio, C. D. Llorens Alvarez, H. Löhner, D. Lo Presti, F. Loui, E. Maccioni, K. Mannheim, K. Manolopoulo, A. Margiotta, O. Mariş, C. Markou, J. A. Martínez-Mora, A. Martini, R. Masullo, T. Michael, P. Migliozzi, E. Migneco, A. Miraglia, C. Mollo, M. Mongelli, M. Morganti, S. Mo, Y. Moudden, P. Musico, M. Musumeci, C. Nicolaou, C. A. Nicolau, A. Orlando, A. Orzelli, K. Papageorgiou, A. Papaikonomou, R. Papaleo, G. E. Păvălaş, H. Peek, C. Pellegrino, M. G. Pellegriti, C. Perrina, C. Petridou, P. Piattelli, K. Pikouni, V. Popa, Th. Pradier, M. Priede, G. Pühlhofer, S. Pulvirenti, C. Racca, F. Raffaelli, N. Randazzo, P. A. Rapidi, P. Razi, D. Real, L. Resvani, J. Reubelt, G. Riccobene, A. Rovelli, J. Royon, M. Saldaña, D. F. E. Samtleben, M. Sanguineti, A. Santangelo, P. Sapienza, I. Savvidi, J. Schmelling, J. Schnabel, M. Sedita, T. Seitz, I. Sgura, F. Simeone, I. Sioti, V. Sipala, M. Solazzo, A. Spitaleri, M. Spurio, G. Stavropoulo, J. Steijger, T. Stolarczyk, D. Stransky, M. Taiuti, G. Terreni, D. Tézier, S. Théraube, L. F. Thompson, P. Timmer, H. I. Trapieraki, L. Trasatti, A. Trovato, M. Tselengidou, A. Tsirigoti, S. Tzamaria, E. Tzamariudaki, B. Vallage, V. Van Elewyck, J. Vermeulen, P. Vernin, S. Viola, D. Vivolo, P. Werneke, L. Wigger, J. Wilm, E. de Wolf, R. H. L. van Wooning, K. Yatkin, K. Zachariadou, E. Zonca, J. D. Zornoza, J. Zúñiga, A. Zwart, Adrian-Martinez, S, Ageron, M, Aharonian, F, Aiello, S, Albert, A, Ameli, F, Anassontzis, Eg, Anghinolfi, M, Anton, G, Anvar, S, Ardid, M, de Asmundis, R, Balasi, K, Band, H, Barbarino, G, Barbarito, E, Barbato, F, Baret, B, Baron, S, Belias, A, Berbee, E, van den Berg, Am, Berkien, A, Bertin, V, Beurthey, S, van Beveren, V, Beverini, N, Biagi, S, Bianucci, S, Billault, M, Birbas, A, Rookhuizen, Hb, Bormuth, R, Bouche, V, Bouhadef, B, Bourlis, G, Bouwhuis, M, Bozza, C, Bruijn, R, Brunner, J, Cacopardo, G, Caillat, L, Calamai, M, Calvo, D, Capone, A, Caramete, L, Caruso, F, Cecchini, S, Ceres, A, Cereseto, R, Champion, C, Chateau, F, Chiarusi, T, Christopoulou, B, Circella, M, Classen, L, Cocimano, R, Colonges, S, Coniglione, R, Cosquer, A, Costa, M, Coyle, P, Creusot, A, Curtil, C, Cuttone, G, D'Amato, C, D'Amico, A, De Bonis, G, De Rosa, G, Deniskina, N, Destelle, Jj, Distefano, C, Donzaud, C, Dornic, D, Dorosti-Hasankiadeh, Q, Drakopoulou, E, Drouhin, D, Drury, L, Durand, D, Eberl, T, Eleftheriadis, C, Elsaesser, D, Enzenhofer, A, Fermani, P, Fusco, La, Gajana, D, Gal, T, Galata, S, Gallo, F, Garufi, F, Gebyehu, M, Giordano, V, Gizani, N, Ruiz, Rg, Graf, K, Grasso, R, Grella, G, Grmek, A, Habel, R, van Haren, H, Heid, T, Heijboer, A, Heine, E, Henry, S, Hernandez-Rey, Jj, Herold, B, Hevinga, Ma, van der Hoek, M, Hofestadt, J, Hogenbirk, J, Hugon, C, Hoessl, J, Imbesi, M, James, C, Jansweijer, P, Jochum, J, de Jong, M, Kadler, M, Kalekin, O, Kappes, A, Kappos, E, Katz, U, Kavatsyuk, O, Keller, P, Kieft, G, Koffeman, E, Kok, H, Kooijman, P, Koopstra, J, Korporaal, A, Kouchner, A, Koutsoukos, S, Kreykenbohm, I, Kulikovskiy, V, Lahmann, R, Lamare, P, Larosa, G, Lattuada, D, Le Provost, H, Leisos, A, Lenis, D, Leonora, E, Clark, Ml, Liolios, A, Alvarez, Cdl, Lohner, H, Lo Presti, D, Louis, F, Maccioni, E, Mannheim, K, Manolopoulos, K, Margiotta, A, Maris, O, Markou, C, Martinez-Mora, Ja, Martini, A, Masullo, R, Michael, T, Migliozzi, P, Migneco, E, Miraglia, A, Mollo, C, Mongelli, M, Morganti, M, Mos, S, Moudden, Y, Musico, P, Musumeci, M, Nicolaou, C, Nicolau, Ca, Orlando, A, Orzelli, A, Papageorgiou, K, Papaikonomou, A, Papaleo, R, Pavalas, Ge, Peek, H, Pellegrino, C, Pellegriti, Mg, Perrina, C, Petridou, C, Piattelli, P, Pikounis, K, Popa, V, Pradier, T, Priede, M, Puhlhofer, G, Pulvirenti, S, Racca, C, Raffaelli, F, Randazzo, N, Rapidis, Pa, Razis, P, Real, D, Resvanis, L, Reubelt, J, Riccobene, G, Rovelli, A, Royon, J, Saldana, M, Samtleben, Dfe, Sanguineti, M, Santangelo, A, Sapienza, P, Savvidis, I, Schmelling, J, Schnabel, J, Sedita, M, Seitz, T, Sgura, I, Simeone, F, Siotis, I, Sipala, V, Solazzo, M, Spitaleri, A, Spurio, M, Stavropoulos, G, Steijger, J, Stolarczyk, T, Stransky, D, Taiuti, M, Terreni, G, Tezier, D, Theraube, S, Thompson, Lf, Timmer, P, Trapierakis, Hi, Trasatti, L, Trovato, A, Tselengidou, M, Tsirigotis, A, Tzamarias, S, Tzamariudaki, E, Vallage, B, Van Elewyck, V, Vermeulen, J, Vernin, P, Viola, S, Vivolo, D, Werneke, P, Wiggers, L, Wilms, J, de Wolf, E, van Wooning, Rhl, Yatkin, K, Zachariadou, K, Zonca, E, Zornoza, Jd, Zuniga, J, and Zwart, A
Subjects: KM3NeT, digital optical module, Physics - Instrumentation and Detectors, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Physics and Astronomy (miscellaneous), TELESCOPE, Physics::Instrumentation and Detectors, FOS: Physical sciences, Neutrino Telescopes, neutrino astrophysics, Cherenkov detector, Cherenkov, Underwater, DESIGN, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), Engineering (miscellaneous), Astrophysics::Instrumentation and Methods for Astrophysics, neutrino telescope, DATA-ACQUISITION, Instrumentation and Detectors (physics.ins-det), READOUT, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], NEUTRINOS, Astrophysics - Instrumentation and Methods for Astrophysics, SYSTEM
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European Physical Journal C Volume 74, Issue 9, 1 September 2014, 8p Deep sea tests of a prototype of the KM3NeT digital optical module: KM3NeT Collaboration (Article) Adrián-Martínez, S.a, Ageron, M.b, Aharonian, F.c, Aiello, S.d, Albert, A.e, Ameli, F.f, Anassontzis, E.G.g, Anghinolfi, M.h, Anton, G.i, Anvar, S.j, Ardid, M.a, de Asmundis, R.k, Balasi, K.l, Band, H.m, Barbarino, G.kn, Barbarito, E.o, Barbato, F.kn, Baret, B.p, Baron, S.p, Belias, A.lq, Berbee, E.m, van den Berg, A.M.r, Berkien, A.m, Bertin, V.b, Beurthey, S.b, van Beveren, V.m, Beverini, N.st, Biagi, S.uv, Bianucci, S.t, Billault, M.b, Birbas, A.w, Boer Rookhuizen, H.m, Bormuth, R.mx, Bouché, V.fy, Bouhadef, B.t, Bourlis, G.w, Bouwhuis, M.m, Bozza, C.nz, Bruijn, R.maa, Brunner, J.b, Cacopardo, G.ab, Caillat, L.b, Calamai, M.t, Calvo, D.ad, Capone, A.y, Caramete, L.ae, Caruso, F.ab, Cecchini, S.uv, Ceres, A.o, Cereseto, R.h, Champion, C.p, Château, F.j, Chiarusi, T.u, Christopoulou, B.w, Circella, M.o, Classen, L.i, Cocimano, R.ab, Colonges, S.p, Coniglione, R.ab, Cosquer, A.b, Costa, M.ab, Coyle, P.b, Creusot, A.p, Curtil, C.b, Cuttone, G.ab, D’Amato, C.ab, D’Amico, A.ab, De Bonis, G.f, De Rosa, G.kn, Deniskina, N.k, Destelle, J.-J.b, Distefano, C.ab, Donzaud, C.pac, Dornic, D.b, Dorosti-Hasankiadeh, Q.r, Drakopoulou, E.l, Drouhin, D.e, Drury, L.c, Durand, D.j, Eberl, T.i, Eleftheriadis, C.af, Elsaesser, D.ag, Enzenhöfer, A.i, Fermani, P.fy, Fusco, L.A.uv, Gajana, D.m, Gal, T.i, Galatà, S.p, Gallo, F.b, Garufi, F.kn, Gebyehu, M.m, Giordano, V.d, Gizani, N.w, Gracia Ruiz, R.p, Graf, K.i, Grasso, R.ab, Grella, G.nz, Grmek, A.ab, Habel, R.ah, van Haren, H.ai, Heid, T.i, Heijboer, A.m, Heine, E.m, Henry, S.b, Hernández-Rey, J.J.ad, Herold, B.i, Hevinga, M.A.r, van der Hoek, M.m, Hofestädt, J.i, Hogenbirk, J.m, Hugon, C.h, Hößl, J.i, Imbesi, M.ab, James, C.i, Jansweijer, P.m, Jochum, J.aj, de Jong, M.mx, Kadler, M.ag, Kalekin, O.i, Kappes, A.i, Kappos, E.gl, Katz, U.i, Kavatsyuk, O.r, Keller, P.b, Kieft, G.m, Koffeman, E.maa, Kok, H.m, Kooijman, P.maaak , Koopstra, J.m, Korporaal, A.m, Kouchner, A.p, Koutsoukos, S.q, Kreykenbohm, I.al, Kulikovskiy, V.h, Lahmann, R.i, Lamare, P.b, Larosa, G.ab, Lattuada, D.ab, Le Provost, H.j, Leisos, A.w, Lenis, D.w, Leonora, E.d, Lindsey Clark, M.p, Liolios, A.af, Llorens Alvarez, C.D.a, Löhner, H.r, Lo Presti, D.dam, Louis, F.j, Maccioni, E.s, Mannheim, K.ag, Manolopoulos, K.gl, Margiotta, A.uv, Mariş, O.ae, Markou, C.l, Martínez-Mora, J.A.ad, Martini, A.ah, Masullo, R.fy, Michael, T.m, Migliozzi, P.k, Migneco, E.ab, Miraglia, A.ab, Mollo, C.k, Mongelli, M.o, Morganti, M.t, Mos, S.m, Moudden, Y.j, Musico, P.h, Musumeci, M.ab, Nicolaou, C.an, Nicolau, C.A.f, Orlando, A.ab, Orzelli, A.h, Papageorgiou, K.ao, Papaikonomou, A.lw, Papaleo, R.ab, Păvălaş, G.E.ae, Peek, H.m, Pellegrino, C.ab, Pellegriti, M.G.ab, Perrina, C.fy, Petridou, C.af, Piattelli, P.ab, Pikounis, K.l, Popa, V.ae, Pradier, T.ap, Priede, M.aq, Pühlhofer, G.aj, Pulvirenti, S.ab, Racca, C.e, Raffaelli, F.t, Randazzo, N.d, Rapidis, P.A.lq, Razis, P.an, Real, D.ad, Resvanis, L.gq, Reubelt, J.i, Riccobene, G.ab, Rovelli, A.ab, Royon, J.b, Saldaña, M.a, Samtleben, D.F.E.mx, Sanguineti, M.ar, Santangelo, A.aj, Sapienza, P.ab, Savvidis, I.af, Schmelling, J.m, Schnabel, J.i, Sedita, M.ab, Seitz, T.i, Sgura, I.o, Simeone, F.f, Siotis, I.l, Sipala, V.d, Solazzo, M.b, Spitaleri, A.ab, Spurio, M.uv, Stavropoulos, G.l, Steijger, J.m, Stolarczyk, T.as, Stransky, D.i, Taiuti, M.har, Terreni, G.t, Tézier, D.b, Théraube, S.b, Thompson, L.F.at, Timmer, P.m, Trapierakis, H.I.lq, Trasatti, L.ap, Trovato, A.ab, Tselengidou, M.i, Tsirigotis, A.w, Tzamarias, S.w, Tzamariudaki, E.l, Vallage, B.pas, Van Elewyck, V.p, Vermeulen, J.m, Vernin, P.as, Viola, S.ab, Vivolo, D.kn, Werneke, P.m, Wiggers, L.m, Wilms, J.al, de Wolf, E.maa, van Wooning, R.H.L.r, Yatkin, K.b, Zachariadou, K.au, Zonca, E.j, Zornoza, J.D.ad, Zúñiga, J.ad, Zwart, A.m View additional authors a Instituto de Investigación para la Gestión Integrada de las Zonas Costeras, Universitat Politècnica de València, Gandia, Spain b CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France c DIAS, Dublin, Ireland View additional affiliations View references (22) Abstract The first prototype of a photo-detection unit of the future KM3NeT neutrino telescope has been deployed in the deep waters of the Mediterranean Sea. This digital optical module has a novel design with a very large photocathode area segmented by the use of 31 three inch photomultiplier tubes. It has been integrated in the ANTARES detector for in-situ testing and validation. This paper reports on the first months of data taking and rate measurements. The analysis results highlight the capabilities of the new module design in terms of background suppression and signal recognition. The directionality of the optical module enables the recognition of multiple Cherenkov photons from the same40 K decay and the localisation of bioluminescent activity in the neighbourhood. The single unit can cleanly identify atmospheric muons and provide sensitivity to the muon arrival directions
Published: 2014
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38. Flux Modulations seen by the Muon Veto of the GERDA Experiment

Author: Collaboration, Gerda, Agostini, M., Balata, M., D'Andrea, V., di Vacri, A., Ioannucci, L., Junker, M., Laubenstein, M., Macolino, C., Pandola, L., Borowicz, D., Frodyma, N., Misiaszek, M., Panas, K., Pelczar, K., Wojcik, M., Zuzel, G., Allardt, M., Barros, N., Domula, A., Lehnert, B., Schneider, B., Wester, T., Wilsenach, H., Zuber, K., Brudanin, V., Egorov, V., Gusev, K., Klimenko, A., Kochetov, O., Lubashevskiy, A., Nemchenok, I., Rumyantseva, N., Shevchik, E., Shirchenko, M., Zhitnikov, I., Zinatulina, D., Hult, M., Lutter, G., Bauer, C., Gangapshev, A., Heisel, M., Hofmann, W., Kihm, T., Kirsch, A., Knöpfle, K. T., Lindner, M., Maneschg, W., Salathe, M., Schreiner, J., Schwingenheuer, B., Simgen, H., Smolnikov, A., Stepaniuk, M., Strecker, H., Wagner, V., Wegmann, A., Bellotti, E., Cattadori, C., Pullia, A., Riboldi, S., Barabanov, I., Belogurov, S., Bezrukov, L., Doroshkevich, E., Fedorova, O., Gurentsov, V., Inzhechik, L. V., Kazalov, V., Kornoukhov, V. N., Kuzminov, V. V., Lubsandorzhiev, B., Moseev, P., Selivanenko, O., Veresnikova, A., Yanovich, E., Chernogorov, A., Demidova, E. V., Kirpichnikov, I. V., Vasenko, A. A., Bakalyarov, A. M., Belyaev, S. T., Lebedev, V. I., Zhukov, S. V., Becerici Schmidt, N., Caldwell, A., Liao, H. Y., Majorovits, B., Palioselitis, D., Schulz, O., Vanhoefer, L., Bode, T., Janicsk'o Cs'athy, J., Lazzaro, A., Schönert, S., Wiesinger, C., Bettini, Alessandro, Brugnera, Riccardo, Garfagnini, Alberto, Hemmer, SABINE ELISABETH, MEDINACELI VILLEGAS, Eduardo, Sada, Cinzia, VON STURM ZU VEHLINGEN, KATHARINA CACILIE, Bettini, A., Brugnera, R., Garfagnini, A., Hemmer, S., Lippi, Ivano, Medinaceli, E., Sada, C., Stanco, Luca, von Sturm, K., Falkenstein, R., Freund, K., Grabmayr, P., Hegai, A., Jochum, J., Knapp, M., Ritter, F., Schmitt, C., Schütz, A. K., Baudis, L., Benato, G., and Walter, M.
Subjects: Cryostat, COLLISIONS, Photomultiplier, Particle physics, Physics - Instrumentation and Detectors, Muon, FOS: Physical sciences, interaction, Flux, Cosmic rays, Muon interaction, Underground experiment, Water cherenkov detector, Astronomy and Astrophysics, Cosmic ray, muon interaction, 01 natural sciences, High Energy Physics - Experiment, GERDA - Abteilung Hofmann, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pion, cosmic rays, PION, 0103 physical sciences, Detectors and Experimental Techniques, 010306 general physics, physics.ins-det, Cherenkov radiation, Physics, water cherenkov detector, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), Effective temperature, underground experiment, Particle Physics - Experiment
Abstract: The GERDA experiment at LNGS of INFN is equipped with an active muon veto. The main part of the system is a water Cherenkov veto with 66~PMTs in the water tank surrounding the GERDA cryostat. The muon flux recorded by this veto shows a seasonal modulation. Two effects have been identified which are caused by secondary muons from the CNGS neutrino beam (2.2 %) and a temperature modulation of the atmosphere (1.4 %). A mean cosmic muon rate of $I^0_{\mu} = (3.477 \pm 0.002_{\textrm{stat}} \pm 0.067_{\textrm{sys}}) \times 10^{-4}$/(s$\cdot$m$^2$) was found in good agreement with other experiments at LNGS at a depth of 3500~meter water equivalent., Comment: 7 pages, 6 figures
Published: 2016

39. Results on light dark matter particles with a low-threshold CRESST-II detector

Author: The CRESST Collaboration, Angloher, G., Bento, A., Bucci, C., Canonica, L., Defay, X., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., Gütlein, A., Hauff, D., Jochum, J., Kiefer, M., Kluck, H., Kraus, H., Lanfranchi, J. C., Loebell, J., Münster, A., Pagliarone, C., Petricca, F., Potzel, W., Pröbst, F., Reindl, F., Schäffner, K., Schieck, J., Schönert, S., Seidel, W., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Thi, H. H. Trinh, Türkoğlu, C., Uffinger, M., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., Wüstrich, M., and Zöller, A.
Subjects: Elastic scattering, Nuclear reaction, Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Scattering, Dark matter, FOS: Physical sciences, Elementary particle, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Nuclear physics, Baryon, Recoil, 0103 physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Engineering (miscellaneous), Light dark matter, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The CRESST-II experiment uses cryogenic detectors to search for nuclear recoil events induced by the elastic scattering of dark matter particles in CaWO$_4$ crystals. Given the low energy threshold of our detectors in combination with light target nuclei, low mass dark matter particles can be probed with high sensitivity. In this letter we present the results from data of a single detector module corresponding to 52 kg live days. A blind analysis is carried out. With an energy threshold for nuclear recoils of 307 eV we substantially enhance the sensitivity for light dark matter. Thereby, we extend the reach of direct dark matter experiments to the sub-region and demonstrate that the energy threshold is the key parameter in the search for low mass dark matter particles., 8 pages, 8 figures
Published: 2016

40. Limit on the radiative neutrinoless double electron capture of$^{36}$ Ar from GERDA Phase I

Author: Agostini , M., Allardt , M., Bakalyarov , A.M., Balata , M., Barabanov , I., Barros , N., Baudis , L., Bauer , C., Bellotti , E., Belogurov , S., Belyaev , S.T., Benato , G., Bettini , A., Bezrukov , L., Bode , T., Borowicz , D., Brudanin , V., Brugnera , R., Caldwell , A., Cattadori , C., Chernogorov , A., D'Andrea , V., Demidova , E.V., Di Vacri , A., Domula , A., Doroshkevich , E., Egorov , V., Falkenstein , R., Fedorova , O., Freund , K., Frodyma , N., Gangapshev , A., Garfagnini , A., Gooch , C., Grabmayr , P., Gurentsov , V., Gusev , K., Hakenmüller , J., Hegai , A., Heisel , M., Hemmer , S., Heusser , G., Hofmann , W., Hult , M., Inzhechik , L.V., Csathy , J.Janicsko, Jochum , J., Junker , M., Kazalov , V., Kihm , T., Kirpichnikov , I.V., Kirsch , A., Kish , A., Klimenko , A., Kneißl , R., Knöpfle , K.T., Kochetov , O., Kornoukhov , V.N., Kuzminov , V.V., Laubenstein , M., Lazzaro , A., Lebedev , V.I., Lehnert , B., Liao , H.Y., Lindner , M., Lippi , I., Lubashevskiy , A., Lubsandorzhiev , B., Lutter , G., Macolino , C., Majorovits , B., Maneschg , W., Medinaceli , E., Miloradovic , M., Mingazheva , R., Misiaszek , M., Moseev , P., Nemchenok , I., Palioselitis , D., Panas , K., Pandola , L., Pelczar , K., Pullia , A., Riboldi , S., Rumyantseva , N., Sada , C., Salamida , F., Salathe , M., Schmitt , C., Schneider , B., Schönert , S., Schreiner , J., Schütz , A.K., Schulz , O., Schwingenheuer , B., Selivanenko , O., Shirchenko , M., Simgen , H., Smolnikov , A., Stanco , L., Stepaniuk , M., Vanhoefer , L., Vasenko , A.A., Veresnikova , A., von Sturm , K., Wagner , V., Walter , M., Wegmann , A., Wester , T., Wiesinger , C., Wilsenach , H., Wojcik , M., Yanovich , E., Zhitnikov , I., Zhukov , S.V., Zinatulina , D., Zuber , K., Zuzel , G., Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), GERDA, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de l'Accélérateur Linéaire ( LAL ), and Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: energy spectrum, FOS: Physical sciences, resolution, electron: capture, radiative capture, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], High Energy Physics - Experiment, Gran Sasso, energy dependence, Auger, liquid argon, High Energy Physics - Experiment (hep-ex), (0neutrino), [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], statistics, efficiency, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], germanium: detector, [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment, Monte Carlo, lepton number: violation, Majorana, GERDA
Abstract: Neutrinoless double electron capture is a process that, if detected, would give evidence of lepton number violation and the Majorana nature of neutrinos. A search for neutrinoless double electron capture of $^{36}$Ar has been performed with germanium detectors installed in liquid argon using data from Phase I of the GERmanium Detector Array (GERDA) experiment at the Gran Sasso Laboratory of INFN, Italy. No signal was observed and an experimental lower limit on the half-life of the radiative neutrinoless double electron capture of $^{36}$Ar was established: $T_{1/2} > $ 3.6 $\times$ 10$^{21}$ yr at 90 % C.I., 7 pages, 3 figures
Published: 2016
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41. Probing low WIMP masses with the next generation of CRESST detector

Author: The CRESST Collaboration, Angloher, G., Bento, A., Bucci, C., Canonica, L., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., G��tlein, A., Hauff, D., Jochum, J., Kiefer, M., Kluck, H., Kraus, H., Lanfranchi, J. -C., Loebell, J., M��nster, A., Petricca, F., Potzel, W., Pr��bst, F., Reindl, F., Sch��ffner, K., Schieck, J., Scholl, S., Sch��nert, S., Seidel, W., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Uffinger, M., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., W��strich, M., and Z��ller, A.
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The purpose of this document is to describe the upgrade of the CRESST dark matter search at LNGS. The proposed strategy will allow to explore a region of the parameter space for spin-independent WIMP-nucleon elastic scattering corresponding to WIMP masses below 10GeV/c$^\text{2}$, that has not been covered by other experiments. These results can be achieved only with outstanding detector performances in terms of threshold and background. This proposal shows how CRESST can match these performance requirements, adding a unique piece of information to the dark matter puzzle. The results of this program will fix a new state-of-the-art in the low mass WIMP exploration, opening new perspectives of understanding the dark matter scenario., 10 pages, 6 figures
Published: 2015

42. $2��$ decay of $^{76}$Ge into excited states with GERDA Phase I

Author: Agostini, M., Allardt, M., Bakalyarov, A. M., Balata, M., Barabanov, I., Barros, N., Baudis, L., Bauer, C., Becerici-Schmidt, N., Bellotti, E., Belogurov, S., Belyaev, S. T., Benato, G., Bettini, A., Bezrukov, L., Bode, T., Borowicz, D., Brudanin, V., Brugnera, R., Budj��, D., Caldwell, A., Cattadori, C., Chernogorov, A., D'Andrea, V., Demidova, E. V., di Vacri, A., Domula, A., Doroshkevich, E., Egorov, V., Falkenstein, R., Fedorova, O., Freund, K., Frodyma, N., Gangapshev, A., Garfagnini, A., Gooch, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hegai, A., Heisel, M., Hemmer, S., Heusser, G., Hofmann, W., Hult, M., Inzhechik, L. V., Cs��thy, J. Janicsk��, Jochum, J., Junker, M., Kazalov, V., Kihm, T., Kirpichnikov, I. V., Kirsch, A., Klimenko, A., Kn��pfle, K. T., Kochetov, O., Kornoukhov, V. N., Kuzminov, V. V., Laubenstein, M., Lazzaro, A., Lebedev, V. I., Lehnert, B., Liao, H. Y., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Medinaceli, E., Mi, Y., Misiaszek, M., Moseev, P., Nemchenok, I., Palioselitis, D., Panas, K., Pandola, L., Pelczar, K., Pullia, A., Riboldi, S., Rumyantseva, N., Sada, C., Salathe, M., Schmitt, C., Schneider, B., Schreiner, J., Schulz, O., Schwingenheuer, B., Sch��nert, S., Sch��tz, A-K., Selivanenko, O., Shirchenko, M., Simgen, H., Smolnikov, A., Stanco, L., Stepaniuk, M., Ur, C. A., Vanhoefer, L., Vasenko, A. A., Veresnikova, A., von Sturm, K., Wagner, V., Walter, M., Wegmann, A., Wester, T., Wilsenach, H., Wojcik, M., Yanovich, E., Zavarise, P., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zuber, K., and Zuzel, G.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract: Two neutrino double beta decay of $^{76}$Ge to excited states of $^{76}$Se has been studied using data from Phase I of the GERDA experiment. An array composed of up to 14 germanium detectors including detectors that have been isotopically enriched in $^{76}$Ge was deployed in liquid argon. The analysis of various possible transitions to excited final states is based on coincidence events between pairs of detectors where a de-excitation $��$ ray is detected in one detector and the two electrons in the other. No signal has been observed and an event counting profile likelihood analysis has been used to determine Frequentist 90\,\% C.L. bounds for three transitions: ${0^+_{\rm g.s.}-2^+_1}$: $T^{2��}_{1/2}>$1.6$\cdot10^{23}$ yr, ${0^+_{\rm g.s.}-0^+_1}$: $T^{2��}_{1/2}>$3.7$\cdot10^{23}$ yr and ${0^+_{\rm g.s.}-2^+_2}$: $T^{2��}_{1/2}>$2.3$\cdot10^{23}$ yr. These bounds are more than two orders of magnitude larger than those reported previously. Bayesian 90\,\% credibility bounds were extracted and used to exclude several models for the ${0^+_{\rm g.s.}-0^+_1}$ transition.
Published: 2015
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43. Measurement of $��_{13}$ in Double Chooz using neutron captures on hydrogen with novel background rejection techniques

Author: Abe, Y., Appel, S., Abrah��o, T., Almazan, H., Alt, C., Anjos, J. C. dos, Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukov, L., Blucher, E., Brugi��re, T., Buck, C., Busenitz, J., Cabrera, A., Camilleri, L., Carr, R., Cerrada, M., Chauveau, E., Chimenti, P., Collin, A. P., Conrad, J. M., Crespo-Anad��n, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., Dietrich, D., Djurcic, Z., Dracos, M., Etenko, A., Fallot, M., von Feilitzsch, F., Felde, J., Fernandes, S. M., Fischer, V., Franco, D., Franke, M., Furuta, H., Gil-Botella, I., Giot, L., G��ger-Neff, M., Gomez, H., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Haag, N., Hara, T., Haser, J., Hellwig, D., Hofmann, M., Horton-Smith, G. A., Hourlier, A., Ishitsuka, M., Jochum, J., Jollet, C., Kaether, F., Kalousis, L. N., Kamyshkov, Y., Kaneda, M., Kaplan, D. M., Kawasaki, T., Kemp, E., de Kerret, H., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Lindner, M., L��pez-Casta��o, J. M., LoSecco, J. M., Lubsandorzhiev, B., Lucht, S., Maeda, J., Mariani, C., Maricic, J., Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Navas-Nicol��s, D., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., R��hling, M., Roncin, R., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Sch��nert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Soiron, M., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Wurm, M., Yang, G., Yermia, F., and Zimmer, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det)
Abstract: The Double Chooz collaboration presents a measurement of the neutrino mixing angle $��_{13}$ using reactor $\overline��_{e}$ observed via the inverse beta decay reaction in which the neutron is captured on hydrogen. This measurement is based on 462.72 live days data, approximately twice as much data as in the previous such analysis, collected with a detector positioned at an average distance of 1050m from two reactor cores. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties. Accidental coincidences, the dominant background in this analysis, are suppressed by more than an order of magnitude with respect to our previous publication by a multi-variate analysis. These improvements demonstrate the capability of precise measurement of reactor $\overline��_{e}$ without gadolinium loading. Spectral distortions from the $\overline��_{e}$ reactor flux predictions previously reported with the neutron capture on gadolinium events are confirmed in the independent data sample presented here. A value of $\sin^{2}2��_{13} = 0.095^{+0.038}_{-0.039}$(stat+syst) is obtained from a fit to the observed event rate as a function of the reactor power, a method insensitive to the energy spectrum shape. A simultaneous fit of the hydrogen capture events and of the gadolinium capture events yields a measurement of $\sin^{2}2��_{13} = 0.088\pm0.033$(stat+syst).
Published: 2015
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44. The CRESST Dark Matter Search - Status and Perspectives

Author: The CRESST Collaboration, Reindl, F., Angloher, G., Bento, A., Bucci, C., Canonica, L., Defay, X., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., Gütlein, A., Hauff, D., Jochum, J., Kiefer, M., Kluck, H., Kraus, H., Lanfranchi, J. C., Loebell, J., Münster, A., Pagliarone, C., Petricca, F., Potzel, W., Pröbst, F., Schäffner, K., Schieck, J., Schönert, S., Seidel, W., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Thi, H. H. Trinh, Türkoğlu, C., Uffinger, M., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., Wüstrich, M., and Zöller, A.
Subjects: Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: In the past years the spotlight of the search for dark matter particles widened to the low mass region, both from theoretical and experimental side. We discuss results from data obtained in 2013 with a single detector TUM40. This detector is equipped with a new upgraded holding scheme to efficiently veto backgrounds induced by surface alpha decays. This veto, the low threshold of 0.6keV and an unprecedented background level for CaWO$_4$ target crystals render TUM40 the detector with the best overall performance of CRESST-II phase 2 (July 2013 - August 2015). A low-threshold analysis allowed to investigate light dark matter particles (, Talk presented CIPANP2015, 6 pages, 6 figures
Published: 2015
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45. Production, characterization and operation of ^{76}Ge enriched BEGe detectors in GERDA

Author: Agostini, M., Allardt, M., Andreotti, E., Bakalyarov, A. M., Balata, M., Barabanov, I., Barros, N., Baudis, L., Bauer, C., Becerici-Schmidt, N., Bellotti, E., Belogurov, S., Belyaev, S. T., Benato, G., Bettini, A., Bezrukov, L., Bode, T., Borowicz, D., Brudanin, V., Brugnera, R., Budjas, D., Caldwel, A., Cattadori, C., Chernogorov, A., D'Andrea, V., Demidova, E. V., Domula, A., Egorov, V., Falkenstein, R., Freund, K., Frodyma, N., Gangapshev, A., Garfagnini, A., Gotti, C., Grabmayr, P., Gurentsov, V., Gusev, K., Hampel, W., Hegai, A., Heisel, M., Hemmer, S., Heusser, G., Hofmann, W., Hult, M., Inzhechik, L. V., Ioannucci, L., Csathy, J. Janicsko, Jochum, J., Junker, M., Kazalov, V., Kihm, T., Kirpichnikov, I. V., Kirsch, A., Klimenko, A., Knöpfle, K. T., Kochetov, O., Kornoukhov, V. N., Kuzminov, V. V., Laubenstein, M., Lazzaro, A., Lebedev, V. I., Lehnert, B., Liao, H. Y., Lindner, M., Lippi, I., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Majorovits, B., Maneschg, W., Misiaszek, M., Nemchenok, I., Nisi, S., O'Shaughnessy, C., Palioselitis, D., Pandola, L., Pelczar, K., Pessina, G., Pullia, A., Riboldi, S., Rumyantseva, N., Sada, C., Salathe, M., Schmitt, C., Schreiner, J., Schulz, O., Schwingenheuer, B., Schönert, S., Shevchik, E., Shirchenko, M., Simgen, H., Smolnikov, A., Stanco, L., Strecker, H., Ur, C. A., Vanhoefer, L., Vasenko, A. A., von Sturm, K., Wagner, V., Walter, M., Wegmann, A., Wester, T., Wilsenach, H., Wojcik, M., Yanovich, E., Zavarise, P., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zuber, K., Zuzel, G., and GERDA Collaboration
Subjects: High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment, GERDA - Abteilung Hofmann
Abstract: The GERmanium Detector Array (GERDA) at the Gran Sasso Underground Laboratory (LNGS) searches for the neutrinoless double beta decay (0{\nu}{\beta}{\beta}) of $^{76}$Ge. Germanium detectors made of material with an enriched $^{76}$Ge fraction act simultaneously as sources and detectors for this decay. During Phase I of the experiment mainly refurbished semi-coaxial Ge detectors from former experiments were used. For the upcoming Phase II, 30 new $^{76}$Ge enriched detectors of broad energy germanium (BEGe)-type were produced. A subgroup of these detectors has already been deployed in GERDA during Phase I. The present paper reviews the complete production chain of these BEGe detectors including isotopic enrichment, purification, crystal growth and diode production. The efforts in optimizing the mass yield and in minimizing the exposure of the $^{76}$Ge enriched germanium to cosmic radiation during processing are described. Furthermore, characterization measurements in vacuum cryostats of the first subgroup of seven BEGe detectors and their long-term behavior in liquid argon are discussed. The detector performance fulfills the requirements needed for the physics goals of GERDA Phase~II., Comment: 23 pages, 21 figures
Published: 2015

46. Muon capture on light isotopes in Double Chooz

Author: Double Chooz collaboration, Abe, Y., Abrahão, T., Almazan, H., Alt, C., Appel, S., Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukov, L., Blucher, E., Brugière, T., Buck, C., Busenitz, J., Cabrera, A., Camilleri, L., Carr, R., Cerrada, M., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, J. M., Crespo-Anadón, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., de Kerret, H., Dhooghe, J., Dietrich, D., Djurcic, Z., Anjos, J. C. dos, Dracos, M., Etenko, A., Fallot, M., Felde, J., Fernandes, S. M., Fischer, V., Franco, D., Franke, M., Furuta, H., Gil-Botella, I., Giot, L., Göger-Neff, M., Gomez, H., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Haag, N., Hara, T., Haser, J., Hellwig, D., Hofmann, M., Horton-Smith, G. A., Hourlier, A., Ishitsuka, M., Jochum, J., Jollet, C., Kaether, F., Kalousis, L. N., Kamyshkov, Y., Kaneda, M., Kaplan, D. M., Kawasaki, T., Kemp, E., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima Jr, H. P., Lindner, M., López-Castaño, J. M., LoSecco, J. M., Lubsandorzhiev, B., Lucht, S., Maeda, J., Mariani, C., Maricic, J., Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Navas-Nicolás, D., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Röhling, M., Roncin, R., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schönert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Soiron, M., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., von Feilitzsch, F., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Wurm, M., Yang, G., Yermia, F., Zimmer, V., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Double Chooz, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Detectors (physics.ins-det), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: Using the Double Chooz detector, designed to measure the neutrino mixing angle $\theta_{13}$, the products of $\mu^-$ capture on $^{12}$C, $^{13}$C, $^{14}$N and $^{16}$O have been measured. Over a period of 489.5 days, $2.3\times10^6$ stopping cosmic $\mu^-$ have been collected, of which $1.8\times10^5$ captured on carbon, nitrogen, or oxygen nuclei in the inner detector scintillator or acrylic vessels. The resulting isotopes were tagged using prompt neutron emission (when applicable), the subsequent beta decays, and, in some cases, $\beta$-delayed neutrons. The most precise measurement of the rate of $^{12}\mathrm C(\mu^-,\nu)^{12}\mathrm B$ to date is reported: $6.57^{+0.11}_{-0.21}\times10^{3}\,\mathrm s^{-1}$, or $(17.35^{+0.35}_{-0.59})\%$ of nuclear captures. By tagging excited states emitting gammas, the ground state transition rate to $^{12}$B has been determined to be $5.68^{+0.14}_{-0.23}\times10^3\,\mathrm s^{-1}$. The heretofore unobserved reactions $^{12}\mathrm C(\mu^-,\nu\alpha)^{8}\mathrm{Li}$, $^{13}\mathrm C(\mu^-,\nu\mathrm n\alpha)^{8}\mathrm{Li}$, and $^{13}\mathrm C(\mu^-,\nu\mathrm n)^{12}\mathrm B$ are measured. Further, a population of $\beta$n decays following stopping muons is identified with $5.5\sigma$ significance. Statistics limit our ability to identify these decays definitively. Assuming negligible production of $^{8}$He, the reaction $^{13}\mathrm C(\mu^-,\nu\alpha)^{9}\mathrm{Li}$ is found to be present at the $2.7\sigma$ level. Limits are set on a variety of other processes., Comment: 21 pages, 14 figures. Minor revisions. Corresponding author: M. Strait
Published: 2015
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47. Energy-Dependent Light Quenching in CaWO$_4$ Crystals at mK Temperatures

Author: Strauss, R., Angloher, G., Bento, A., Bucci, C., Canonica, L., Carli, W., Ciemniak, C., Erb, A., Feilitzsch, F. v., Gorla, P., G��tlein, A., Hagn, H., Hauff, D., Hellgartner, D., Jochum, J., Kraus, H., Lanfranchi, J. -C., Loebell, J., M��nster, A., Petricca, F., Potzel, W., Pr��bst, F., Reindl, F., Roth, S., Rottler, K., Sailer, C., Sch��ffner, K., Schieck, J., Scholl, S., Sch��nert, S., Seidel, W., Sivers, M. v., Stodolsky, L., Strandhagen, C., Tanzke, A., Uffinger, M., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., W��strich, M., and Z��ller, A.
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Scintillating CaWO$_4$ single crystals are a promising multi-element target for rare-event searches and are currently used in the direct Dark Matter experiment CRESST (Cryogenic Rare Event Search with Superconducting Thermometers). The relative light output of different particle interactions in CaWO$_4$ is quantified by Quenching Factors (QFs). These are essential for an active background discrimination and the identification of a possible signal induced by weakly interacting massive particles (WIMPs). We present the first precise measurements of the QFs of O, Ca and W at mK temperatures by irradiating a cryogenic detector with a fast neutron beam. A clear energy dependence of the QF of O and, less pronounced, of Ca was observed for the first time. Furthermore, in CRESST neutron-calibration data a variation of the QFs among different CaWO$_4$ single crystals was found. For typical CRESST detectors the QFs in the region-of-interest (10-40$\,$keV) are $QF_O^{ROI}=(11.2{\pm}0.5)\,$%, $QF_{Ca}^{ROI}=(5.94{\pm}0.49)\,$% and $QF_W^{ROI}=(1.72{\pm}0.21)\,$%. The latest CRESST data (run32) is reanalyzed using these fundamentally new results on light quenching in CaWO$_4$ having moderate influence on the WIMP analysis. Their relevance for future CRESST runs and for the clarification of previously published results of direct Dark Matter experiments is emphasized., 6 pages, 6 figures, 2 tables
Published: 2014

48. Background-independent measurement of $��_{13}$ in Double Chooz

Author: Abe, Y., Anjos, J. C. dos, Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukov, L., Blucher, E., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, L., Carr, R., Cerrada, M., Chang, P. -J., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, J. M., Crespo-Anad��n, J. I., Crum, K., Cucoanes, A., Damon, E., Dawson, J. V., Dietrich, D., Djurcic, Z., Dracos, M., Elnimr, M., Etenko, A., Fallot, M., von Feilitzsch, F., Felde, J., Fernandes, S. M., Fischer, V., Franco, D., Franke, M., Furuta, H., Gil-Botella, I., Giot, L., G��ger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Grant, C., Haag, N., Hara, T., Haser, J., Hofmann, M., Horton-Smith, G. A., Hourlier, A., Ishitsuka, M., Jochum, J., Jollet, C., Kaether, F., Kalousis, L. N., Kamyshkov, Y., Kaplan, D. M., Kawasaki, T., Kemp, E., de Kerret, H., Konno, T., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Lindner, M., L��pez-Casta��o, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., Maeda, J., Mariani, C., Maricic, J., Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Nakajima, K., Nikitenko, Y., Novella, P., Obolensky, M., Oberauer, L., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., R��hling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Sato, F., Schilithz, A. C., Sch��nert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shimojima, S., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., St��ken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., and Zimmer, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: The oscillation results published by the Double Chooz collaboration in 2011 and 2012 rely on background models substantiated by reactor-on data. In this analysis, we present a background-model-independent measurement of the mixing angle $��_{13}$ by including 7.53 days of reactor-off data. A global fit of the observed neutrino rates for different reactor power conditions is performed, yielding a measurement of both $��_{13}$ and the total background rate. The results on the mixing angle are improved significantly by including the reactor-off data in the fit, as it provides a direct measurement of the total background rate. This reactor rate modulation analysis considers antineutrino candidates with neutron captures on both Gd and H, whose combination yields $\sin^2(2��_{13})=$ 0.102 $\pm$ 0.028(stat.) $\pm$ 0.033(syst.). The results presented in this study are fully consistent with the ones already published by Double Chooz, achieving a competitive precision. They provide, for the first time, a determination of $��_{13}$ that does not depend on a background model.
Published: 2014
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49. Results on neutrinoless double beta decay of 76Ge from GERDA Phase I

Author: Agostini, M., Allardt, M., Andreotti, E., Bakalyarov, A. M., Balata, M., Barabanov, I., Heider, M. Barnab��, Barros, N., Baudis, L., Bauer, C., Becerici-Schmidt, N., Bellotti, E., Belogurov, S., Belyaev, S. T., Benato, G., Bettini, A., Bezrukov, L., Bode, T., Brudanin, V., Brugnera, R., Budj��, D., Caldwell, A., Cattadori, C., Chernogorov, A., Cossavella, F., Demidova, E. V., Domula, A., Egorov, V., Falkenstein, R., Ferella, A., Freund, K., Frodyma, N., Gangapshev, A., Garfagnini, A., Gotti, C., Grabmayr, P., Gurentsov, V., Gusev, K., Guthikonda, K. K., Hampel, W., Hegai, A., Heisel, M., Hemmer, S., Heusser, G., Hofmann, W., Hult, M., Inzhechik, L. V., Ioannucci, L., Cs��thy, J. Janicsk��, Jochum, J., Junker, M., Kihm, T., Kirpichnikov, I. V., Kirsch, A., Klimenko, A., Kn��pfle, K. T., Kochetov, O., Kornoukhov, V. N., Kuzminov, V. V., Laubenstein, M., Lazzaro, A., Lebedev, V. I., Lehnert, B., Liao, H. Y., Lindner, M., Lippi, I., Liu, X., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Macolino, C., Machado, A. A., Majorovits, B., Maneschg, W., Misiaszek, M., Nemchenok, I., Nisi, S., O'Shaughnessy, C., Pandola, L., Pelczar, K., Pessina, G., Potenza, %F., Pullia, A., Riboldi, S., Rumyantseva, N., Sada, C., Salathe, M., Schmitt, C., Schreiner, J., Schulz, O., Schwingenheuer, B., Sch��nert, S., Shevchik, E., Shirchenko, M., Simgen, H., Smolnikov, A., Stanco, L., Strecker, H., Tarka, M., Ur, C. A., Vasenko, A. A., Volynets, O., von Sturm, K., Wagner, V., Walter, M., Wegmann, A., Wester, T., Wojcik, M., Yanovich, E., Zavarise, P., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zuber, K., and Zuzel, G.
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: Neutrinoless double beta decay is a process that violates lepton number conservation. It is predicted to occur in extensions of the Standard Model of particle physics. This Letter reports the results from Phase I of the GERmanium Detector Array (GERDA) experiment at the Gran Sasso Laboratory (Italy) searching for neutrinoless double beta decay of the isotope 76Ge. Data considered in the present analysis have been collected between November 2011 and May 2013 with a total exposure of 21.6 kgyr. A blind analysis is performed. The background index is about 1.10^{-2} cts/(keV kg yr) after pulse shape discrimination. No signal is observed and a lower limit is derived for the half-life of neutrinoless double beta decay of 76Ge, T_1/2 > 2.1 10^{25} yr (90% C.L.). The combination with the results from the previous experiments with 76Ge yields T_1/2 > 3.0 10^{25} yr (90% C.L.)., 6 pages, 2 figures
Published: 2013

50. First Measurement of ��_13 from Delayed Neutron Capture on Hydrogen in the Double Chooz Experiment

Author: Double Chooz Collaboration, Abe, Y., Aberle, C., Anjos, J. C. dos, Barriere, J. C., Bergevin, M., Bernstein, A., Bezerra, T. J. C., Bezrukhov, L., Blucher, E., Bowden, N. S., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, L., Carr, R., Cerrada, M., Chang, P. -J., Chimenti, P., Classen, T., Collin, A. P., Conover, E., Conrad, J. M., Crespo-Anad��n, J. I., Crum, K., Cucoanes, A., Damon, E., Dawson, J. V., Dazeley, S., Dietrich, D., Djurcic, Z., Dracos, M., Durand, V., Ebert, J., Efremenko, Y., Elnimr, M., Erickson, A., Etenko, A., Fallot, M., Fechner, M., von Feilitzsch, F., Felde, J., Fernandes, S. M., Fischer, V., Franco, D., Franke, A. J., Franke, M., Furuta, H., Gama, R., Gil-Botella, I., Giot, L., G��ger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Goon, J. TM., Greiner, D., Haag, N., Habib, S., Hagner, C., Hara, T., Hartmann, F. X., Haser, J., Hatzikoutelis, A., Hayakawa, T., Hofmann, M., Horton-Smith, G. A., Hourlier, A., Ishitsuka, M., Jochum, J., Jollet, C., Jones, C. L., Kaether, F., Kalousis, L. N., Kamyshkov, Y., Kaplan, D. M., Kawasaki, T., Keefer, G., Kemp, E., de Kerret, H., Konno, T., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Langbrandtner, C., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Lindner, M., L��pez-Casta��o, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., McKee, D., Maeda, J., Maesano, C. N., Mariani, C., Maricic, J., Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Meyer, M., Miletic, T., Milincic, R., Miyata, H., Mueller, Th. A., Nagasaka, Y., Nakajima, K., Novella, P., Obolensky, M., Oberauer, L., Onillon, A., Osborn, A., Ostrovskiy, I., Palomares, C., Pepe, I. M., Perasso, S., Perrin, P., Pfahler, P., Porta, A., Potzel, W., Pronost, G., Reichenbacher, J., Reinhold, B., Remoto, A., R��hling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Sato, F., Sch��nert, S., Schoppmann, S., Schwetz, T., Shaevitz, M. H., Shimojima, S., Shrestha, D., Sida, J-L., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., St��ken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Toups, M., Thi, H. H. Trinh, Valdiviesso, G., Veyssiere, C., Wagner, S., Watanabe, H., White, B., Wiebusch, C., Winslow, L., Worcester, M., Wurm, M., Yermia, F., and Zimmer, V.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: The Double Chooz experiment has determined the value of the neutrino oscillation parameter $��_{13}$ from an analysis of inverse beta decay interactions with neutron capture on hydrogen. This analysis uses a three times larger fiducial volume than the standard Double Chooz assessment, which is restricted to a region doped with gadolinium (Gd), yielding an exposure of 113.1 GW-ton-years. The data sample used in this analysis is distinct from that of the Gd analysis, and the systematic uncertainties are also largely independent, with some exceptions, such as the reactor neutrino flux prediction. A combined rate- and energy-dependent fit finds $\sin^2 2��_{13}=0.097\pm 0.034(stat.) \pm 0.034 (syst.)$, excluding the no-oscillation hypothesis at 2.0 ��. This result is consistent with previous measurements of $\sin^2 2��_{13}$., 6 pages, 2 figures; published version
Published: 2013
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