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1. The Double Chooz antineutrino detectors

Author: Double Chooz Collaboration, de Kerret, H., Abe, Y., Aberle, C., Abrahão, T., Ahijado, J. M., Akiri, T., Alarcón, J. M., Alba, J., Almazan, H., Anjos, J. C. dos, Appel, S., Ardellier, F., Barabanov, I., Barriere, J. C., Baussan, E., Baxter, A., Bekman, I., Bergevin, M., Bernstein, A., Bertoli, W., Bezerra, T. J. C., Bezrukov, L., Blanco, C., Bleurvacq, N., Blucher, E., Bonet, H., Bongrand, M., Bowden, N. S, Brugière, T., Buck, C., Avanzini, M. Buizza, Busenitz, J., Cabrera, A., Calvo, E., Camilleri, L., Carr, R., Cazaux, S., Cela, J. M., Cerrada, M., Chang, P. J., Charon, P., Chauveau, E., Chimenti, P., Classen, T., Collin, A. P., Conover, E., Conrad, J. M, Cormon, S., Corpace, O., Courty, B., Crespo-Anadón, J. I., Cribier, M., Crum, K., Cuadrado, S., Cucoanes, A., D'Agostino, M., Damon, E., Dawson, J. V., 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. M., Fernández-Bedoya, C., Francia, D., Franco, D., Fischer, V., Franke, A. J., Franke, M., Furuta, H., Garcia, F., Garcia, J., Gil-Botella, I., Giot, L., Givaudan, A., Göger-Neff, M., Gomez, H., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Goon, J., Gramlich, B., Greiner, D., Guertin, A., Guillon, B., Habib, S. M., Haddad, Y., Hara, T., Hartmann, F. X., 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. M., Karakac, M., Kawasaki, T., Kemp, E., Kibe, Y., Kirchner, T., Konno, T., Kryn, D., Kutter, T., Kuze, M., Lachenmaier, T., Lane, C. E., Langbrandtner, C., Lasserre, T., Lastoria, C., Latron, L., Leonardo, C., Letourneau, A., Lhuillier, D., Lima Jr, H. P., Lindner, M., López-Castaño, J. M., LoSecco, J. M., Lubsandorzhiev, B., Lucht, S., Maeda, J., Maesano, C. N., Mariani, C., Maricic, J., Marie, F., Martinez, J. J., Martino, J., Matsubara, T., McKee, D., Meigner, F., Mention, G., Meregaglia, A., Meyer, J. P., Miletic, T., Milincic, R., Millot, J. F., Minotti, A., Mirones, V., Miyata, H., Mueller, Th. A., 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. J. M., Pepe, I. M., Perasso, S., Perrin, P., Pfahler, P., Porta, A., Pronost, G., Puras, J. C., Quéval, R., Ramirez, J. L., 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. A., Sharankova, R., Sibille, V., Sida, J. L., Sinev, V., Shrestha, D., Skorokhvatov, M., Soldin, P., Spitz, J., Stahl, A., Stancu, I., Starzynski, P., Stock, M. R., Stokes, L. F. F., 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. Trinh, 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., and Zbiri, K.
Subjects: Physics - Instrumentation and Detectors
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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2. The Double Chooz antineutrino detectors

Author: de Kerret, H., Abe, Y., Aberle, C., Abrahão, T., Ahijado, J. M., Akiri, T., Alarcón, J. M., Alba, J., Almazan, H., dos Anjos, J. C., Appel, S., Ardellier, F., Barabanov, I., Barriere, J. C., Baussan, E., Baxter, A., Bekman, I., Bergevin, M., Bernstein, A., Bertoli, W., Bezerra, T. J. C., Bezrukov, L., Blanco, C., Bleurvacq, N., Blucher, E., Bonet, H., Bongrand, M., Bowden, N. S, Brugière, T., Buck, C., Avanzini, M. Buizza, Busenitz, J., Cabrera, A., Caden, E., Calvo, E., Camilleri, L., Carr, R., Cazaux, S., Cela, J. M., Cerrada, M., Chang, P. J., Charon, P., Chauveau, E., Chimenti, P., Classen, T., Collin, A. P., Conover, E., Conrad, J. M, Cormon, S., Corpace, O., Courty, B., Crespo-Anadón, J. I., Cribier, M., Crum, K., Cuadrado, S., Cucoanes, A., D’Agostino, M., Damon, E., Dawson, J. V., 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. M., Fernández-Bedoya, C., Francia, D., Franco, D., Fischer, V., Franke, A. J., Franke, M., Furuta, H., Garcia, F., Garcia, J., Gil-Botella, I., Giot, L., Givaudan, A., Göger-Neff, M., Gomez, H., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Goon, J., Gramlich, B., Greiner, D., Guertin, A., Guillon, B., Habib, S. M., Haddad, Y., Hara, T., Hartmann, F. X., 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. M., Karakac, M., Kawasaki, T., Kemp, E., Kibe, Y., Kirchner, T., Konno, T., Kryn, D., Kutter, T., Kuze, M., Lachenmaier, T., Lane, C. E., Langbrandtner, C., Lasserre, T., Lastoria, C., Latron, L., Leonardo, C., Letourneau, A., Lhuillier, D., Lima, Jr, H. P., Lindner, M., López-Castaño, J. M., LoSecco, J. M., Lubsandorzhiev, B., Lucht, S., Maeda, J., Maesano, C. N., Mariani, C., Maricic, J., Marie, F., Martinez, J. J., Martino, J., Matsubara, T., McKee, D., Meigner, F., Mention, G., Meregaglia, A., Meyer, J. P., Miletic, T., Milincic, R., Millot, J. F., Minotti, A., Mirones, V., Miyata, H., Mueller, Th. A., 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. J. M., Pepe, I. M., Perasso, S., Perrin, P., Pfahler, P., Porta, A., Pronost, G., Puras, J. C., Quéval, R., Ramirez, J. L., 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., Schönert, S., Schoppmann, S., Scola, L., Settimo, M., Shaevitz, M. A., Sharankova, R., Sibille, V., Sida, J.-L., Sinev, V., Shrestha, D., Skorokhvatov, M., Soldin, P., Spitz, J., Stahl, A., Stancu, I., Starzynski, P., Stock, M. R., Stokes, L. F. F., 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. Trinh, 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., and Zbiri, K.
Published: 2022
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3. Ortho-positronium observation in the Double Chooz Experiment

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-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., 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., Goger-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., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima Jr, H. P., Lindner, M., Lopez-Castano, 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., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Rohling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schonert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Stuken, 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., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., and Zimmer, V.
Subjects: Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract: The Double Chooz experiment measures the neutrino mixing angle $\theta_{13}$ by detecting reactor $\bar{\nu}_e$ via inverse beta decay. The positron-neutron space and time coincidence allows for a sizable background rejection, nonetheless liquid scintillator detectors would profit from a positron/electron discrimination, if feasible in large detector, to suppress the remaining background. Standard particle identification, based on particle dependent time profile of photon emission in liquid scintillator, can not be used given the identical mass of the two particles. However, the positron annihilation is sometimes delayed by the ortho-positronium (o-Ps) metastable state formation, which induces a pulse shape distortion that could be used for positron identification. In this paper we report on the first observation of positronium formation in a large liquid scintillator detector based on pulse shape analysis of single events. The o-Ps formation fraction and its lifetime were measured, finding the values of 44$\%$ $\pm$ 12$\%$ (sys.) $\pm$ 5$\%$ (stat.) and $3.68$ns $\pm$ 0.17ns (sys.) $\pm$ 0.15ns (stat.) respectively, in agreement with the results obtained with a dedicated positron annihilation lifetime spectroscopy setup., Comment: 17 pages, 5 figures
Published: 2014
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4. Improved measurements of the neutrino mixing angle $\theta_{13}$ with the Double Chooz detector

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-Anadón, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., 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., Göger-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., 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., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Röhling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schönert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Stüken, 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., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., and Zimmer, V.
Subjects: High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract: The Double Chooz experiment presents improved measurements of the neutrino mixing angle $\theta_{13}$ using the data collected in 467.90 live days from a detector positioned at an average distance of 1050 m from two reactor cores at the Chooz nuclear power plant. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties with respect to previous publications, whereas the efficiency of the $\bar\nu_{e}$ signal has increased. The value of $\theta_{13}$ is measured to be $\sin^{2}2\theta_{13} = 0.090 ^{+0.032}_{-0.029}$ from a fit to the observed energy spectrum. Deviations from the reactor $\bar\nu_{e}$ prediction observed above a prompt signal energy of 4 MeV and possible explanations are also reported. A consistent value of $\theta_{13}$ is obtained from a fit to the observed rate as a function of the reactor power independently of the spectrum shape and background estimation, demonstrating the robustness of the $\theta_{13}$ measurement despite the observed distortion., Comment: 44 pages, 25 figures. Figures 21 and 22 have been replaced (statistical error bars for bins above 8 MeV have become smaller). No other changes in the results of the paper; an Erratum submitted to JHEP
Published: 2014
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5. Precision Muon Reconstruction in Double Chooz

Author: Double Chooz collaboration, 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-Anadón, 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., Göger-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., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima Jr, H. P., Lindner, M., no, J. M. López-Casta, 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., 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., Röhling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schönert, 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., Stüken, 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: Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract: We describe a muon track reconstruction algorithm for the reactor anti-neutrino experiment Double Chooz. The Double Chooz detector consists of two optically isolated volumes of liquid scintillator viewed by PMTs, and an Outer Veto above these made of crossed scintillator strips. Muons are reconstructed by their Outer Veto hit positions along with timing information from the other two detector volumes. All muons are fit under the hypothesis that they are through-going and ultrarelativistic. If the energy depositions suggest that the muon may have stopped, the reconstruction fits also for this hypothesis and chooses between the two via the relative goodness-of-fit. In the ideal case of a through-going muon intersecting the center of the detector, the resolution is ~40 mm in each transverse dimension. High quality muon reconstruction is an important tool for reducing the impact of the cosmogenic isotope background in Double Chooz., Comment: 12 pages, 8 figures, submitted to Nuclear Instrumentation and Methods A. Author list corrected
Published: 2014
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6. Background-independent measurement of $\theta_{13}$ 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-Anadón, 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., Göger-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 Jr, H. P., Lindner, M., López-Castaño, 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., Röhling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Sato, F., Schilithz, A. C., Schönert, 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., Stüken, 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
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 $\theta_{13}$ 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 $\theta_{13}$ 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 $\sin^2(2\theta_{13})=$ 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 $\theta_{13}$ that does not depend on a background model.
Published: 2014
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7. Precision muon reconstruction in Double Chooz

Author: Abe, Y., dos Anjos, J.C., 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-Anadón, J.I., Crum, K., Cucoanes, A., Damon, E., Dawson, J.V., Dhooghe, J., 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., Göger-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., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C.E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H.P., Jr., 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., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I.M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Röhling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A.C., Schönert, S., Schoppmann, S., Shaevitz, M.H., Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L.F.F., Strait, M., Stüken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Trinh Thi, H.H., Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., and Zimmer, V.
Published: 2014
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8. Production of Amorphous Alloys by Special Electrometallurgy Methods

Author: Shapovalov, V., Nikitenko, Y., Manulyk, A., and Kalashnyk, D.
Published: 2016
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9. Erratum to: Improved measurements of the neutrino mixing angle θ 13 with the Double Chooz detector

Author: Abe, Y., dos Anjos, J. C., 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-Anadón, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., 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., Göger-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., 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., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Röhling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schönert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Stüken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Trinh Thi, H. H., Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., Zimmer, V., and The Double Chooz collaboration
Published: 2015
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10. To the Issue of Developing the «Soft Skills» of the Future Teacher

Author: Stepanova, I. Y. and Nikitenko, Y. A.
Subjects: SOFT SKILLS, FUTURE TEACHER, SELF-CARE, КРИТИЧЕСКОЕ МЫШЛЕНИЕ, БУДУЩИЙ ПЕДАГОГ, ПРИНЯТИЕ РЕШЕНИЙ, CRITICAL THINKING, МЯГКИЕ НАВЫКИ, DECISION-MAKING, COLLABORATION, ЗАБОТА О СЕБЕ, СОТРУДНИЧЕСТВО
Abstract: The article draws attention to the issue of the need to develop the soft skills of the future teacher in the process of his preparation at the university and reveals the specifics of their understanding. В статье привлекается внимание к вопросу необходимости развития мягких навыков будущего педагога в процессе его подготовки в вузе и раскрывается специфика их понимания.
Published: 2022

11. Influence of Dimensional Effects on the Curie Temperature of Dy and Ho Thin Films

Author: Devyaterikov, D. I., Proglyado, V. V., Zhaketov, V. D., Nikitenko, Y. V., Kondrat’ev, O. A., Pashaev, E. M., Subbotin, I. A., Zverev, V. I., Kravtsov, E. A., and Ustinov, V. V.
Subjects: TEMPERATURE DEPENDENCE, HOLMIUM, X-RAY DIFFRACTION ANALYSIS, LOWER TEMPERATURES, MAGNETIC ORDERING, SIZE EFFECTS, DYSPROSIUM, FERROMAGNETIC PHASE, EPITAXIAL STRAIN, TEMPERATURE DISTRIBUTION, DIMENSIONAL EFFECTS, THIN FILMS, CURIE TEMPERATURE, TEMPERATURE RANGE, NEUTRON REFLECTOMETRY, RARE-EARTH METALS
Abstract: The role of size effects in the formation of the magnetic structure of Dy and Ho thin films in absence of epitaxial strain is studied in this work. It was found that, for Dy in the temperature range between the Néel temperature and the Curie temperature of bulk Dy and, for Ho, in the temperature range between the Néel temperature and the temperature of phase transition into the conic phase, the temperature dependences of the period of magnetic helicoid in the bulk and film metals are similar. The character of the transition into the ferromagnetic phase in the Dy films changes at lower temperatures, and the transition into the commensurable conic phase in the Ho films is suppressed. This is explained exclusively by the influence of dimensional effects. © 2021, Pleiades Publishing, Ltd. Synthesis of samples and magnetometric measurements were performed at the Center of the Collaborative Access, Institute of Metal Physics, Ural Branch, Russian Academy of Sciences. Experimental data obtained with the REMUR reflectometer were transformed from the instrumental coordinate system into the reciprocal space coordinate system using Överlåtaren software []. This study was supported by the Russian Foundation for Basic Research, project no. 19-32-90007.
Published: 2021

12. To the Issue of Remote Interaction in the Implementation of the Educational Process in the University

Author: Nikitenko, Y. A., Stepanova, I. Y., and Sichinava, A. A.
Subjects: РЕЖИМ ВИДЕОКОНФЕРЕНЦСВЯЗИ, DISTANCE LEARNING, ПРЕПОДАВАТЕЛЬ, СТУДЕНТ, TEACHER, ДИСТАНЦИОННОЕ ОБУЧЕНИЕ, REMOTE INTERACTION, STUDENT, ДИСТАНЦИОННОЕ ВЗАИМОДЕЙСТВИЕ, VIDEOCONFERENCING MODE
Abstract: В статье привлекается внимание к вопросу осуществления дистанционного взаимодействия в режиме видеоконференцсвязи, значимость которого повысилась при реализации образовательного процесса в условиях пандемии. Авторами высказываются соображения о различных сложных и проблемных моментах выстраивания «живого» взаимодействия, которое позволяет поддерживать высокое качество обучения в дистанционном режиме, осуществлять продуктивную групповую работу по решению образовательных задач. The article draws attention to the issue of remote interaction in videoconferencing, the importance of which has increased in the implementation of the educational process in pandemic conditions. The authors suggest various complex and problematic moments of building a «live» interaction, which allows maintaining high quality of training in a remote mode, and carrying out productive group work to solve educational problems.
Published: 2021

13. К проблеме ориентации подготовки будущего педагога на становление его как транспрофессионала

Author: Степанова, И. Ю., Никитенко, Ю. А., Stepanova, I. Y., Nikitenko, Y. A., Степанова, И. Ю., Никитенко, Ю. А., Stepanova, I. Y., and Nikitenko, Y. A.
Abstract: В статье рассматривается принципиальная возможность изменения характера подготовки будущего педагога. Она основана на ориентации подготовки на создание образа педагога Будущего как транспрофессионала. Опирается на реализацию идей опережения и проектирования в вузовской подготовке, The article considers the fundamental possibility of changing the nature of training of the future teacher. It is based on the orientation of training to create an image of the Future teacher as a transfessional. It is based on the implementation of ideas of advance and design in university training
Published: 2020

14. PSYCHOLOGY AND PEDAGOGICAL MAINTENANCE AS CONDITION OF FORMATION OF SUBJECTIVITY OF FIRST-YEAR STUDENTS

Author: Nikitenko, Y. A.
Subjects: СУБЪЕКТНОСТЬ, ПСИХОЛОГО-ПЕДАГОГИЧЕСКОЕ СОПРОВОЖДЕНИЕ, SUBJECTIVITY, СТУДЕНТЫ ПЕРВОКУРСНИКИ, УЧЕБНО-ПРОФЕССИОНАЛЬНАЯ ДЕЯТЕЛЬНОСТЬ, PSYCHOLOGY AND PEDAGOGICAL MAINTENANCE, EDUCATIONAL PROFESSIONAL ACTIVITY, СТАНОВЛЕНИЕ СУБЪЕКТНОСТИ, FIRST-YEAR STUDENTS, FORMATION OF SUBJECTIVITY
Abstract: В статье рассматривается вопрос становления субъектности студентов первокурсников как необходимой составляющей осуществления их учебно-профессиональной деятельности. Раскрывается содержание психолого-педагогического сопровождения как условия, реализующего становление субъектности студента In article the question of formation of subjectivity of first-year students as a necessary component of implementation of their educational professional activity is considered. Content of psychology and pedagogical maintenance as the condition realizing formation of subjectivity of the student reveals
Published: 2019

15. Orientation of students on maintenance of the healthy lifestyle

Author: Nikitenko, Y. A. and Stepanova, I. Y.
Subjects: ОРИЕНТИРОВАНИЕ, HEALTHY LIFESTYLE, СТУДЕНТЫ, ЗДОРОВЬЕ, HEALTH CULTURE OF THE TEACHER, ЗДОРОВЫЙ ОБРАЗ ЖИЗНИ, КОНФЕРЕНЦИИ РГППУ, HEALTH, КУЛЬТУРА ЗДОРОВЬЯ, МАТЕРИАЛЫ КОНФЕРЕНЦИЙ, ORIENTATION, STUDENTS OF THE PEDAGOGICAL DIRECTION
Abstract: В статье рассматривается необходимость ориентирования современных студентов на поддержание здорового образа жизни. The article deals with the need to Orient modern students to maintain a healthy lifestyle.
Published: 2019

16. Психолого-педагогическое сопровождение как условие становления субъектности студентов первокурсников

Author: Никитенко, Ю. А., Nikitenko, Y. A., Никитенко, Ю. А., and Nikitenko, Y. A.
Abstract: В статье рассматривается вопрос становления субъектности студентов первокурсников как необходимой составляющей осуществления их учебно-профессиональной деятельности. Раскрывается содержание психолого-педагогического сопровождения как условия, реализующего становление субъектности студента, In article the question of formation of subjectivity of first-year students as a necessary component of implementation of their educational professional activity is considered. Content of psychology and pedagogical maintenance as the condition realizing formation of subjectivity of the student reveals
Published: 2019

17. Neutron reflectometry studies of Gd/Nb and Cu30Ni70/Nb superlattices

Author: Khaydukov, Y., Kravtsov, E., Morari, R., Lenk, D., Mustafa, L., Kim, G., Trapp, M., Zhaketov, V., Proglyado, V., Zrdavkov, V., Nikitenko, Y., Krug, Von, Nidda, H. -A., Keller, T., Steitz, R., Tideks, R., Sidorenko, A., Ustinov, V., Aksenov, V., Keimer, B., Khaydukov, Y., Kravtsov, E., Morari, R., Lenk, D., Mustafa, L., Kim, G., Trapp, M., Zhaketov, V., Proglyado, V., Zrdavkov, V., Nikitenko, Y., Krug, Von, Nidda, H. -A., Keller, T., Steitz, R., Tideks, R., Sidorenko, A., Ustinov, V., Aksenov, V., and Keimer, B.
Abstract: We performed a comparative study of magnetic proximity effects in [Gd(5nm)/Nb(25nm)]12 and [Cu30Ni70(6nm)/Nb(27nm)]12 superlattices of S/F type by means of transport measurements and neutron scattering. Transport measurements have shown that Gd/Nb and CuNi/Nb superlattices shows 3D and 2D type of superconductivity respectively. In the case of proximity coupled Gd/Nb superconductor the effective thickness of the superconducting region, 300nm is enough to expel significant amount of applied magnetic field which was detected by neutron scattering. In decoupled CuNi/Nb superlattice thickness of every superconducting layer is only 27nm which is not enough to expel applied magnetic field. Our study shows how neutron reflectometry can be applied to study proximity coupling in superconducting/ferromagnet heterostructures. © Published under licence by IOP Publishing Ltd.
Published: 2019

18. Professional task as substantial reference point of educational professional activity of bachelors

Author: Nikitenko, Y. A. and Stepanova, I. Y.
Subjects: СОДЕРЖАНИЕ ПОДГОТОВКИ, УЧЕБНО-ПРОФЕССИОНАЛЬНАЯ ДЕЯТЕЛЬНОСТЬ, PROFESSIONAL PROBLEM, БАКАЛАВР, BACHELOR, ПРОФЕССИОНАЛЬНАЯ ЗАДАЧА, EDUCATIONAL PROFESSIONAL ACTIVITY, CONTENT OF PREPARATION, EDUCATIONAL PROGRAM, ОБРАЗОВАТЕЛЬНАЯ ПРОГРАММА
Abstract: In article the practical applicability of professional tasks for selection of content of preparation at development of educational programs of a bachelor degree is discussed. The way of specification of content of educational professional activity on the example of one of problems of the Pedagogical education direction is offered Обсуждается практическая применимость профессиональных задач для отбора содержания подготовки при освоении образовательных программ бакалавриата. Предлагается способ уточнения содержания учебно-профессиональной деятельности на примере одной из задач направления «Педагогическое образование»
Published: 2018

19. Neutron reflectometry studies of Gd/Nb and Cu30Ni70/Nb superlattices

Author: Khaydukov, Y, primary, Kravtsov, E, additional, Morari, R, additional, Lenk, D, additional, Mustafa, L, additional, Kim, G, additional, Trapp, M, additional, Zhaketov, V, additional, Proglyado, V, additional, Zrdavkov, V, additional, Nikitenko, Y, additional, Krug von Nidda, H-A, additional, Keller, T, additional, Steitz, R, additional, Tideks, R, additional, Sidorenko, A, additional, Ustinov, V, additional, Aksenov, V, additional, and Keimer, B, additional
Published: 2019
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20. Профессиональная задача как содержательный ориентир учебно-профессиональной деятельности бакалавров

Author: Никитенко, Ю. А., Степанова, И. Ю., Nikitenko, Y. A., Stepanova, I. Y., Никитенко, Ю. А., Степанова, И. Ю., Nikitenko, Y. A., and Stepanova, I. Y.
Abstract: In article the practical applicability of professional tasks for selection of content of preparation at development of educational programs of a bachelor degree is discussed. The way of specification of content of educational professional activity on the example of one of problems of the Pedagogical education direction is offered, Обсуждается практическая применимость профессиональных задач для отбора содержания подготовки при освоении образовательных программ бакалавриата. Предлагается способ уточнения содержания учебно-профессиональной деятельности на примере одной из задач направления «Педагогическое образование»
Published: 2018

21. Precision muon reconstruction in Double Chooz

Author: Abe, Y, Dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dhooghe, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, Von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, De Kerret, H, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Letourneau, A, Lhuillier, D, Lima, J, 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, Nikitenko, Y, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Abe Y., Dos Anjos J. C., 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-Anadon J. I., Crum K., Cucoanes A., Damon E., Dawson J. V., Dhooghe J., 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., Goger-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., Kryn D., Kuze M., Lachenmaier T., Lane C. E., Lasserre T., Letourneau A., Lhuillier D., Lima Jr. H. P., Lindner M., Lopez-Castano 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., Nikitenko Y., Novella P., Oberauer L., Obolensky M., Onillon A., Osborn A., Palomares C., Pepe I. M., Perasso S., Pfahler P., Porta A., Pronost G., Reichenbacher J., Reinhold B., Rohling M., Roncin R., Roth S., Rybolt B., Sakamoto Y., Santorelli R., Schilithz A. C., Schonert S., Schoppmann S., Shaevitz M. H., Sharankova R., Shimojima S., Shrestha D., Sibille V., Sinev V., Skorokhvatov M., Smith E., Spitz J., Stahl A., Stancu I., Stokes L. F. F., Strait M., Stuken A., Suekane F., Sukhotin S., Sumiyoshi T., Sun Y., Svoboda R., Terao K., Tonazzo A., Trinh Thi H. H., Valdiviesso G., Vassilopoulos N., Veyssiere C., Vivier M., Wagner S., Walsh N., Watanabe H., Wiebusch C., Winslow L., Wurm M., Yang G., Yermia F., Zimmer V., Abe, Y, Dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dhooghe, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, Von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, De Kerret, H, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Letourneau, A, Lhuillier, D, Lima, J, 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, Nikitenko, Y, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Abe Y., Dos Anjos J. C., 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-Anadon J. I., Crum K., Cucoanes A., Damon E., Dawson J. V., Dhooghe J., 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., Goger-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., Kryn D., Kuze M., Lachenmaier T., Lane C. E., Lasserre T., Letourneau A., Lhuillier D., Lima Jr. H. P., Lindner M., Lopez-Castano 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., Nikitenko Y., Novella P., Oberauer L., Obolensky M., Onillon A., Osborn A., Palomares C., Pepe I. M., Perasso S., Pfahler P., Porta A., Pronost G., Reichenbacher J., Reinhold B., Rohling M., Roncin R., Roth S., Rybolt B., Sakamoto Y., Santorelli R., Schilithz A. C., Schonert S., Schoppmann S., Shaevitz M. H., Sharankova R., Shimojima S., Shrestha D., Sibille V., Sinev V., Skorokhvatov M., Smith E., Spitz J., Stahl A., Stancu I., Stokes L. F. F., Strait M., Stuken A., Suekane F., Sukhotin S., Sumiyoshi T., Sun Y., Svoboda R., Terao K., Tonazzo A., Trinh Thi H. H., Valdiviesso G., Vassilopoulos N., Veyssiere C., Vivier M., Wagner S., Walsh N., Watanabe H., Wiebusch C., Winslow L., Wurm M., Yang G., Yermia F., and Zimmer V.
Abstract: We describe a muon track reconstruction algorithm for the reactor anti-neutrino experiment Double Chooz. The Double Chooz detector consists of two optically isolated volumes of the liquid scintillator viewed by PMTs, and an Outer Veto above these made of crossed scintillator strips. Muons are reconstructed by their Outer Veto hit positions along with timing information from the other two detector volumes. All muons are fit under the hypothesis that they are through-going and ultrarelativistic. If the energy depositions suggest that the muon may have stopped, the reconstruction fits also for this hypothesis and chooses between the two via the relative goodness-of-fit. In the ideal case of a through-going muon intersecting the center of the detector, the resolution is ~40mm in each transverse dimension. High quality muon reconstruction is an important tool for reducing the impact of the cosmogenic isotope background in Double Chooz. © 2014 Elsevier B.V.
Published: 2014

22. Improved measurements of the neutrino mixing angle Ɵ13 with the double chooz detector

Author: Abe, Y, dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dhooghe, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, de Kerret, H, 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, Nikitenko, Y, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Abe Y., dos Anjos J. C., 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-Anadon J. I., Crum K., Cucoanes A. S., Damon E., Dawson J. V., Dhooghe J., 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., Goger-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., Kryn D., Kuze M., Lachenmaier T., Lane C. E., Lasserre T., Letourneau A., Lhuillier D., Lima H. P., Lindner M., Lopez-Castano 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., Nikitenko Y., Novella P., Oberauer L., Obolensky M., Onillon A., Osborn A., Palomares C., Pepe I. M., Perasso S., Pfahler P., Porta A., Pronost G., Reichenbacher J., Reinhold B., Rohling M., Roncin R., Roth S., Rybolt B., Sakamoto Y., Santorelli R., Schilithz A. C., Schonert S., Schoppmann S., Shaevitz M. H., Sharankova R., Shimojima S., Shrestha D., Sibille V., Sinev V., Skorokhvatov M., Smith E., Spitz J., Stahl A., Stancu I., Stokes L. F. F., Strait M., Stuken A., Suekane F., Sukhotin S., Sumiyoshi T., Sun Y., Svoboda R., Terao K., Tonazzo A., Trinh Thi H. H., Valdiviesso G., Vassilopoulos N., Veyssiere C., Vivier M., Wagner S., Walsh N., Watanabe H., Wiebusch C., Winslow L., Wurm M., Yang G., Yermia F., Zimmer V., Abe, Y, dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dhooghe, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, de Kerret, H, 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, Nikitenko, Y, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Abe Y., dos Anjos J. C., 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-Anadon J. I., Crum K., Cucoanes A. S., Damon E., Dawson J. V., Dhooghe J., 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., Goger-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., Kryn D., Kuze M., Lachenmaier T., Lane C. E., Lasserre T., Letourneau A., Lhuillier D., Lima H. P., Lindner M., Lopez-Castano 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., Nikitenko Y., Novella P., Oberauer L., Obolensky M., Onillon A., Osborn A., Palomares C., Pepe I. M., Perasso S., Pfahler P., Porta A., Pronost G., Reichenbacher J., Reinhold B., Rohling M., Roncin R., Roth S., Rybolt B., Sakamoto Y., Santorelli R., Schilithz A. C., Schonert S., Schoppmann S., Shaevitz M. H., Sharankova R., Shimojima S., Shrestha D., Sibille V., Sinev V., Skorokhvatov M., Smith E., Spitz J., Stahl A., Stancu I., Stokes L. F. F., Strait M., Stuken A., Suekane F., Sukhotin S., Sumiyoshi T., Sun Y., Svoboda R., Terao K., Tonazzo A., Trinh Thi H. H., Valdiviesso G., Vassilopoulos N., Veyssiere C., Vivier M., Wagner S., Walsh N., Watanabe H., Wiebusch C., Winslow L., Wurm M., Yang G., Yermia F., and Zimmer V.
Abstract: The Double Chooz experiment presents improved measurements of the neutrino mixing angle Ɵ13 using the data collected in 467.90 live days from a detector positioned at an average distance of 1050m from two reactor cores at the Chooz nuclear power plant. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties with respect to previous publications, whereas the efficiency of the (Formula Presented.) signal has increased. The value of Ɵ13 is measured to be sin22Ɵ13 = 0.090-0.029+0.032 from a fit to the observed energy spectrum. Deviations from the reactor (Formula Presented.) prediction observed above a prompt signal energy of 4MeV and possible explanations are also reported. A consistent value of Ɵ13 is obtained from a fit to the observed rate as a function of the reactor power independently of the spectrum shape and background estimation, demonstrating the robustness of the Ɵ13 measurement despite the observed distortion.
Published: 2014

23. Background-independent measurement of θ13 in Double Chooz

Author: Abe, Y., Dos Anjos, J. C., 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-Anadon, 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., Göger-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 Jr., H. P., Lindner, M., Lopez-Castano, 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., Röhling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Sato, F., Schilithz, A. C., Schönert, 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., Stüken, 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., Zimmer, V., Institut Pluridisciplinaire Hubert Curien (IPHC), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), APC - Neutrinos, AstroParticule et Cosmologie (APC (UMR_7164)), 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)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), 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), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-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)-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), Abe, Y, Dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, Von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, De Kerret, H, Konno, T, 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, Nakajima, K, Nikitenko, Y, Novella, P, Obolensky, M, Oberauer, L, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Sato, F, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Université de Strasbourg (UNISTRA)-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 Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-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)-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), 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), 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), and Double Chooz Collaboration
Subjects: [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], neutrino oscillation, neutrino mixing, High Energy Physics - Experiment
Abstract: Physics letters / B 735, 51-56 (2014). doi:10.1016/j.physletb.2014.04.045, Published by Elsevier, Amsterdam
Published: 2014
Full Text: View/download PDF

24. Erratum: Improved measurements of the neutrino mixing angle $\theta_{13}$ with the Double Chooz detector (vol 10, 086, 2014)

Author: Abe, Y., Anjos, J. C., 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-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., Dietrich, D., Djurcic, Z., Dracos, M., Elnimr, M., Etenko, A., Fallot, Muriel, Feilitzsch, F., Felde, J., Fernandes, S. M., Fischer, V., Franco, D., Franke, M., Furuta, H., Gil-Botella, I., Giot, Lydie, Goeger-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., Kerret, H., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Lindner, M., Lopez-Castao, 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., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Roehling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schoenert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Stueken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Trinh Thi, H. H., Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., Zimmer, V., Centro Brasileiro de Pesquisas Físicas (CBPF), Ministério da Ciência e Tecnologia, 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), Rheinisch-Westfälische Technische Hochschule Aachen University (RWTH), Universite de Californie, Tohoku University [Sendai], Enrico Fermi Institute, University of Chicago, Max-Planck-Institut für Kernphysik (MPIK), Max-Planck-Gesellschaft, University of Alabama [Tuscaloosa] (UA), Department of Physics - Drexel University, Drexel University, Columbia University [New York], Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), Kansas State University, Massachusetts Institute of Technology (MIT), Laboratoire SUBATECH Nantes (SUBATECH), 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), University of Tübingen, Argonne National Laboratory [Lemont] (ANL), Department of Physics and Astronomy [Tuscaloosa), Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), University of Maryland [Baltimore], Universidade Estadual de Campinas = University of Campinas (UNICAMP), Virginia Tech [Blacksburg], 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), Département de Physique Nucléaire (ex SPhN) (DPHN), 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, Kobe University, University of Hawai‘i [Mānoa] (UHM), Département de Physique des Particules (ex SPP) (DPhP), Hiroshima Institute of Technology, Département d'Ingénierie des Systèmes (ex SIS) (DIS), Johannes Gutenberg - Universität Mainz = Johannes Gutenberg University (JGU), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), RWTH Aachen University, 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), Universidade Estadual de Campinas (UNICAMP), 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), Département de Physique des Particules (ex SPP) (DPP), Johannes Gutenberg - Universität Mainz (JGU), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Technische Universität München [München] (TUM), 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), and Johannes Gutenberg - University of Mainz (JGU)
Subjects: [PHYS]Physics [physics], [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]
Abstract: International audience; The Double Chooz experiment presents improved measurements of the neutrino mixing angle θ13 using the data collected in 467.90 live days from a detector positioned at an average distance of 1050 m from two reactor cores at the Chooz nuclear power plant. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties with respect to previous publications, whereas the efficiency of the ν¯¯¯e signal has increased. The value of θ13 is measured to be sin2 2θ13 = 0.090+ 0.032− 0.029 from a fit to the observed energy spectrum. Deviations from the reactor ν¯¯¯e prediction observed above a prompt signal energy of 4 MeV and possible explanations are also reported. A consistent value of θ13 is obtained from a fit to the observed rate as a function of the reactor power independently of the spectrum shape and background estimation, demonstrating the robustness of the θ13 measurement despite the observed distortion.
Published: 2015
Full Text: View/download PDF

25. Improved measurements of the neutrino mixing angle theta(13) with the Double Chooz detector

Author: Abe, Y., dos Anjos, J. C., Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukhov, Leonid B., Blucher, E., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, Leslie, Carr, Rachel E., Cerrada, M., Chang, P. J., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, Janet M., Crespo-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., Dietrich, D., Djurcic, Zelimir, 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., Goger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Grant, C., Haag, N., Hara, T., Haser, J., Hofmann, M., Horton-Smith, Glenn 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., Kryn, D., Kuze, M., Lachenmaier, Tobias, Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Jr., Lindner, M., Lopez-Castano, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., Maeda, J., Mariani, Camillo, Maricic, Jelena, Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Roehling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schoenert, S., Schoppmann, S., Shaevitz, Marjorie Hansen, Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, Mikhail D., Smith, E., Spitz, Joshua, Stahl, A., Stancu, Ion, Stokes, Lee F. F., Strait, M., Stuken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G. A., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., Zimmer, V., Abe, Y., dos Anjos, J. C., Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukhov, Leonid B., Blucher, E., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, Leslie, Carr, Rachel E., Cerrada, M., Chang, P. J., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, Janet M., Crespo-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., Dietrich, D., Djurcic, Zelimir, 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., Goger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Grant, C., Haag, N., Hara, T., Haser, J., Hofmann, M., Horton-Smith, Glenn 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., Kryn, D., Kuze, M., Lachenmaier, Tobias, Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Jr., Lindner, M., Lopez-Castano, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., Maeda, J., Mariani, Camillo, Maricic, Jelena, Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Roehling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schoenert, S., Schoppmann, S., Shaevitz, Marjorie Hansen, Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, Mikhail D., Smith, E., Spitz, Joshua, Stahl, A., Stancu, Ion, Stokes, Lee F. F., Strait, M., Stuken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G. A., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., and Zimmer, V.
Abstract: The Double Chooz experiment presents improved measurements of the neutrino mixing angle theta(13) using the data collected in 467.90 live days from a detector positioned at an average distance of 1050m from two reactor cores at the Chooz nuclear power plant. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties with respect to previous publications, whereas the efficiency of the (nu) over bar (e) signal has increased. The value of theta(13) is measured to be sin(2)2 theta(13) = 0.090(-0.029)(+0.032) from a fit to the observed energy spectrum. Deviations from the reactor (nu) over bar (e) prediction observed above a prompt signal energy of 4 MeV and possible explanations are also reported. A consistent value of theta(13) is obtained from a fit to the observed rate as a function of the reactor power independently of the spectrum shape and background estimation, demonstrating the robustness of the theta(13) measurement despite the observed distortion.
Published: 2014
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26. Improved measurements of the neutrino mixing angle theta(13) with the Double Chooz detector

Author: Center for Neutrino Physics, Abe, Y., dos Anjos, J. C., Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukhov, Leonid B., Blucher, E., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, Leslie, Carr, Rachel E., Cerrada, M., Chang, P. J., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, Janet M., Crespo-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., Dietrich, D., Djurcic, Zelimir, 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., Goger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Grant, C., Haag, N., Hara, T., Haser, J., Hofmann, M., Horton-Smith, Glenn 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., Kryn, D., Kuze, M., Lachenmaier, Tobias, Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Jr., Lindner, M., Lopez-Castano, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., Maeda, J., Mariani, Camillo, Maricic, Jelena, Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Roehling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schoenert, S., Schoppmann, S., Shaevitz, Marjorie Hansen, Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, Mikhail D., Smith, E., Spitz, Joshua, Stahl, A., Stancu, Ion, Stokes, Lee F. F., Strait, M., Stuken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G. A., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., Zimmer, V., Center for Neutrino Physics, Abe, Y., dos Anjos, J. C., Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukhov, Leonid B., Blucher, E., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, Leslie, Carr, Rachel E., Cerrada, M., Chang, P. J., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, Janet M., Crespo-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., Dietrich, D., Djurcic, Zelimir, 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., Goger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Grant, C., Haag, N., Hara, T., Haser, J., Hofmann, M., Horton-Smith, Glenn 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., Kryn, D., Kuze, M., Lachenmaier, Tobias, Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Jr., Lindner, M., Lopez-Castano, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., Maeda, J., Mariani, Camillo, Maricic, Jelena, Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Roehling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schoenert, S., Schoppmann, S., Shaevitz, Marjorie Hansen, Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, Mikhail D., Smith, E., Spitz, Joshua, Stahl, A., Stancu, Ion, Stokes, Lee F. F., Strait, M., Stuken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G. A., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., and Zimmer, V.
Abstract: The Double Chooz experiment presents improved measurements of the neutrino mixing angle theta(13) using the data collected in 467.90 live days from a detector positioned at an average distance of 1050m from two reactor cores at the Chooz nuclear power plant. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties with respect to previous publications, whereas the efficiency of the (nu) over bar (e) signal has increased. The value of theta(13) is measured to be sin(2)2 theta(13) = 0.090(-0.029)(+0.032) from a fit to the observed energy spectrum. Deviations from the reactor (nu) over bar (e) prediction observed above a prompt signal energy of 4 MeV and possible explanations are also reported. A consistent value of theta(13) is obtained from a fit to the observed rate as a function of the reactor power independently of the spectrum shape and background estimation, demonstrating the robustness of the theta(13) measurement despite the observed distortion.
Published: 2014

27. Ortho-positronium observation in the Double Chooz experiment

Author: Center for Neutrino Physics, Abe, Y., dos Anjos, J. C., Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukhov, Leonid B., Blucher, E., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, Leslie, Carr, Rachel E., Cerrada, M., Chang, P. J., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, Janet M., Crespo-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., Dietrich, D., Djurcic, Zelimir, 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., Goger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Grant, C., Haag, N., Hara, T., Haser, J., Hofmann, M., Horton-Smith, Glenn 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., Kryn, D., Kuze, M., Lachenmaier, Tobias, Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Jr., Lindner, M., Lopez-Castano, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., Maeda, J., Mariani, Camillo, Maricic, Jelena, Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Roehling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schoenert, S., Schoppmann, S., Shaevitz, Marjorie Hansen, Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, Mikhail D., Smith, E., Spitz, Joshua, Stahl, A., Stancu, Ion, Stokes, Lee F. F., Strait, M., Stuken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G. A., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., Zimmer, V., Center for Neutrino Physics, Abe, Y., dos Anjos, J. C., Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukhov, Leonid B., Blucher, E., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, Leslie, Carr, Rachel E., Cerrada, M., Chang, P. J., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, Janet M., Crespo-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., Dietrich, D., Djurcic, Zelimir, 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., Goger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Grant, C., Haag, N., Hara, T., Haser, J., Hofmann, M., Horton-Smith, Glenn 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., Kryn, D., Kuze, M., Lachenmaier, Tobias, Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima, H. P., Jr., Lindner, M., Lopez-Castano, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., Maeda, J., Mariani, Camillo, Maricic, Jelena, Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Roehling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schoenert, S., Schoppmann, S., Shaevitz, Marjorie Hansen, Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, Mikhail D., Smith, E., Spitz, Joshua, Stahl, A., Stancu, Ion, Stokes, Lee F. F., Strait, M., Stuken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G. A., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., and Zimmer, V.
Abstract: The Double Chooz experiment measures the neutrino mixing angle theta(13) by detecting reactor (nu) over bar (e) via inverse beta decay. The positron-neutron space and time coincidence allows for a sizable background rejection, nonetheless liquid scintillator detectors would profit from a positron/electron discrimination, if feasible in large detector, to suppress the remaining background. Standard particle identification, based on particle dependent time profile of photon emission in liquid scintillator, can not be used given the identical mass of the two particles. However, the positron annihilation is sometimes delayed by the orthopositronium (o-Ps) metastable state formation, which induces a pulse shape distortion that could be used for positron identification. In this paper we report on the first observation of positronium formation in a large liquid scintillator detector based on pulse shape analysis of single events. The o-Ps formation fraction and its lifetime were measured, finding the values of 44 +/- 12 % (sys.) +/- 5 % (stat.) and 3.68 ns +/- 0.17 ns (sys.) +/- 0.15 ns (stat.) respectively, in agreement with the results obtained with a dedicated positron annihilation lifetime spectroscopy setup.
Published: 2014

28. Production of Amorphous Alloys by Special Electrometallurgy Methods.

Author: Shapovalov, V., Nikitenko, Y., Manulyk, A., and Kalashnyk, D.
Published: 2015
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29. Peculiarities of magnetic states in ferromagnet/superconductor heterostructures due to the proximity effects

Author: Aksenov, V L, primary, Khaidukov, Y N, additional, and Nikitenko, Y V, additional
Published: 2010
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30. Spin-flip spatial neutron beam splitting in magnetic media

Author: Aksenov, V. L., Nikitenko, Y. V., and Kozhevnikov, S. V.
Published: 2001
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31. Neutron interference at grazing incidence reflection. Neutron standing waves in multilayered structures: applications, status, perspectives

Author: Aksenov, V. L. and Nikitenko, Y. V.
Published: 2001
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32. Polarization analysis of neutron reflectometry on non-collinear magnetic media: polarized neutron reflectometry experiments on a thin cobalt film

Author: Kruijs, R. W. van de, Fredrikze, H., Rekveldt, M. T., Well, A. A. van, Nikitenko, Y. V., and Syromyatnikov, V. G.
Published: 2000
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33. Non-specular spin-flipped neutron reflectivity from a cobalt film on glass

Author: Fredrikze, H., Rekveldt, T., Well, A. Van, Nikitenko, Y., and Syromyatnikov, V.
Published: 1998
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34. Improved measurements of the neutrino mixing angle theta(13) with the Double Chooz detector

Author: Abe, Y., Dos Anjos, J. C., 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-Anadon, J. I., Crum, K., Cucoanes, A. S., Damon, E., Dawson, J. V., Dhooghe, J., 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., Göger-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., 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., Nikitenko, Y., Novella, P., Oberauer, L., Obolensky, M., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Röhling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Schilithz, A. C., Schönert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shimojima, S., Shrestha, D., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Stüken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Trinh Thi, H. H., Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Walsh, N., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., Zimmer, V., and Double Chooz Collaboration
Subjects: 7. Clean energy
Abstract: Journal of high energy physics : JHEP 2014(10), 086 (2014). doi:10.1007/JHEP10(2014)086, Published by SISSA [u.a.], Berlin

35. Refraction of polarized neutrons in a magnetically non-collinear layer

Author: Aksenov, V. L., Dokukin, E. B., Kozhevnikov, S. V., Nikitenko, Y. V., Petrenko, A. V., and Schreiber, J.
Published: 1997
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36. Reflection and refraction of spin-flip neutrons in a Fe-Gd structure

Author: Aksenov, V. L., Kozhevnikov, S. V., Nikitenko, Y. V., and Lauter, H.
Published: 2000
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37. Observation of resonance enhanced neutron standing waves through (n, a) reaction

Author: Aksenov, V. L., Nikitenko, Y. V., Radu, F., Gledenov, Y. M., and Sedyshev, P. V.
Published: 2000
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38. Observation of neutron standing waves at total reflection of polarized neutrons by precision gamma-spectroscopy

Author: Aksenov, V. L., Cser, L., Gundorin, N. A., Nikitenko, Y. V., and Popov, Y. P.
Published: 2000
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39. Refraction of polarized neutrons on boundaries of a magnetic film

Author: Aksenov, V. L., Kozhevnikov, S. V., and Nikitenko, Y. V.
Published: 2000
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40. Spin-flipped transmission of polarized neutrons through Co film on glass

Author: Aksenov, V. L., Kozhevnikov, S. V., and Nikitenko, Y. V.
Published: 2000
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41. Proposal of a wide-band mirror polarizer of slow neutrons at a pulsed neutron source

Author: Nikitenko, Y. V. and Ostanevich, Y. M.
Published: 1993
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42. Neutron depolarization studies of magnetization process in superparamagnetic cluster structures

Author: Ligenza, S., Dokukin, E. B., and Nikitenko, Y. V.
Published: 1995
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43. On variants of the neutron adiabatic spin flipper

Author: Dokukin, E. B. and Nikitenko, Y. V.
Published: 1993
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44. Neutron depolarization investigations of high-temperature superconductors in the mixed state

Author: Aksenov, V. L., Dokukin, E. B., and Nikitenko, Y. V.
Published: 1995
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45. The behavior of a type-II superconductor Nb in a magnetic field as investigated in polarized-neutron transmission experiments

Author: Aksenov, V. L., Dokukin, E. B., Kozhevnikov, S. V., and Nikitenko, Y. V.
Published: 1995
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46. Possibilities of creating a wide-spectrum neutron polarizer for pulsed neutron sources

Author: Nikitenko, Y. V.
Published: 1994
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47. Precision Muon Reconstruction in Double Chooz

Author: Stefan Schoppmann, Yuri Kamyshkov, P.-J. Chang, M. Obolensky, H. de Kerret, M. Vivier, Kazuhiro Terao, L. N. Kalousis, J. Maricic, Marcos Cerrada, N. Vassilopoulos, M. Elnimr, Christopher Wiebusch, C. Grant, S. Shimojima, M. D. Skorokhvatov, Michael Wurm, Cécile Jollet, B. Reinhold, H. Watanabe, V. Zimmer, G. A. Valdiviesso, BayarJon Paul Lubsandorzhiev, S. Perasso, G. A. Horton-Smith, M. C. Goodman, J.V. Dawson, A. S. Cucoanes, E. Blucher, A. Osborn, E. Chauveau, Daniel M. Kaplan, T. Miletic, Zelimir Djurcic, R. Milincic, R. Carr, R. Roncin, G. Yang, L. Goodenough, R. Santorelli, M. Kuze, Christian Buck, Ying Sun, B. Rybolt, E. Damon, V. Sibille, J. Reichenbacher, A. Tonazzo, D. Kryn, S. Roth, A.V. Etenko, Eric Baussan, P. Novella, Luis González, G. Pronost, D. Dietrich, Thierry Lasserre, J. M. LoSecco, M. Franke, A. Hourlier, Lydie Giot, Anselmo Meregaglia, T. Hara, J. Maeda, J. C. Barriere, I. M. Pepe, J. Martino, P. Chimenti, Tobias Lachenmaier, Y. Sakamoto, T.J.C. Bezerra, J. C. dos Anjos, G. Mention, S. Lucht, T. Matsubara, David Lhuillier, Marcos Dracos, I. Stancu, A.C. Schilithz, Yoshio Abe, Janet Conrad, J. M. López-Castaño, Lothar Oberauer, S. Schönert, S. M. Fernandes, H. Furuta, Anatael Cabrera, P. Pfahler, C. E. Lane, I. Bekman, Achim Stahl, R. Sharankova, S. V. Sukhotin, E. Smith, J. Dhooghe, L. B. Bezrukov, M. Röhling, Muriel Fallot, E. Caden, J. Haser, E. Conover, M. H. Shaevitz, A. Onillon, L. Camilleri, T. Kawasaki, A. Stüken, A. Minotti, C. Palomares, V. Fischer, N. Haag, M. Göger-Neff, Florian Kaether, C. Veyssiere, Michael Hofmann, J. Felde, D. Franco, V. V. Sinev, Masaki Ishitsuka, Audrey Letourneau, Lindley Winslow, Yasushi Nagasaka, E. Kemp, D. Shrestha, M. Bergevin, F. Suekane, L.F.F. Stokes, T. Sumiyoshi, K. Crum, J. I. Crespo-Anadón, Amanda Porta, J. Spitz, Y. Nikitenko, I. Gil-Botella, C. Mariani, Josef Jochum, F. Yermia, Matthew L Strait, Robert Svoboda, F. von Feilitzsch, H. P. Lima, J. Busenitz, Sebastian Wagner, Manfred Lindner, Antoine Collin, N. Walsh, H. H. Trinh Thi, Double Chooz Collaboration, Département d'Ingénierie des Systèmes (ex SIS) (DIS), 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 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), Max-Planck-Institut, 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), Département de Physique des Particules (ex SPP) (DPP), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Double Chooz, Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, Conrad, Janet Marie, Spitz, Joshua B., Terao, Kazuhiro, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Double-CHOOZ, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), 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), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), 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), Département de Physique des Particules (ex SPP) (DPhP), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Abe, Y, Dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dhooghe, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, Von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, De Kerret, H, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Letourneau, A, Lhuillier, D, Lima, J, 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, Nikitenko, Y, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, and Zimmer, V
Subjects: Nuclear and High Energy Physics, Particle physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, STRIPS, Double Chooz, Muon reconstruction, Neutrino detector, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], CHOOZ, Scintillator, High Energy Physics - Experiment, law.invention, NO, Nuclear physics, High Energy Physics - Experiment (hep-ex), law, [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], Instrumentation, Image resolution, Physics, Muon, Detector, Reconstruction algorithm, Instrumentation and Detectors (physics.ins-det), Physics::Accelerator Physics, High Energy Physics::Experiment
Abstract: We describe a muon track reconstruction algorithm for the reactor anti-neutrino experiment Double Chooz. The Double Chooz detector consists of two optically isolated volumes of liquid scintillator viewed by PMTs, and an Outer Veto above these made of crossed scintillator strips. Muons are reconstructed by their Outer Veto hit positions along with timing information from the other two detector volumes. All muons are fit under the hypothesis that they are through-going and ultrarelativistic. If the energy depositions suggest that the muon may have stopped, the reconstruction fits also for this hypothesis and chooses between the two via the relative goodness-of-fit. In the ideal case of a through-going muon intersecting the center of the detector, the resolution is ∼40 mm in each transverse dimension. High quality muon reconstruction is an important tool for reducing the impact of the cosmogenic isotope background in Double Chooz., National Science Foundation (U.S.), United States. Department of Energy
Published: 2014
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48. Ortho-positronium observation in the Double Chooz experiment

Author: R. Milincic, Christian Buck, B. Rybolt, S. V. Sukhotin, A. Minotti, Ernesto Kemp, Cécile Jollet, D. Dietrich, M. Röhling, Matthew L Strait, N. Haag, G. Pronost, E. Damon, J. Martino, E. Caden, S. Lucht, A.V. Etenko, Masahiro Kuze, Eric Baussan, E. Chauveau, L. B. Bezrukov, Michael Wurm, H. Watanabe, M. Obolensky, Kazuhiro Terao, G. Mention, Christopher Wiebusch, G. A. Valdiviesso, P. Novella, R. Sharankova, Lydie Giot, L.N. Kalousis, S. Shimojima, Achim Stahl, Michael H. Shaevitz, M. Göger-Neff, Takeo Kawasaki, V. Zimmer, I. Stancu, K. Crum, Z. Djurcic, D. Lhuillier, M. Cerrada, P. Chimenti, V. Sinev, A. S. Cucoanes, G. A. Horton-Smith, M. Skorokhvatov, R. Carr, Bayarto Lubsandorzhiev, H. Furuta, A. Tonazzo, C. Mariani, Thierry Lasserre, A. Onillon, Josef Jochum, J. I. Crespo-Anadón, Y. Kamyshkov, J. Busenitz, L. Camilleri, C. Palomares, J. C. Barriere, J. Reichenbacher, Lindley Winslow, H. H. Trinh Thi, F. von Feilitzsch, Anatael Cabrera, Luis González, N. Vassilopoulos, J.V. Dawson, Yasushi Nagasaka, J. Dhooghe, E. Conover, R. Santorelli, T.J.C. Bezerra, V. Fischer, J. Haser, J. Maricic, M. Franke, M. Vivier, Stefan Schoppmann, I. M. Pepe, Eluned Smith, D. Kryn, T. Sumiyoshi, Y. Sakamoto, C. E. Lane, T. Miletic, A. Osborn, M. Ishitsuka, F. Suekane, F. Yermia, L.F.F. Stokes, Sebastian Wagner, Manfred Lindner, Antoine Collin, Y. Nikitenko, P. Pfahler, V. Sibille, T. Hara, Alain Letourneau, E. Blucher, N. Walsh, J. Maeda, L. Goodenough, S. M. Fernandes, I. Gil-Botella, L. Oberauer, C. Veyssiere, J. C. dos Anjos, Amanda Porta, Maury Goodman, Tobias Lachenmaier, Yoshio Abe, A. Hourlier, Daniel M. Kaplan, Janet Conrad, S. Perasso, Anselmo Meregaglia, H. de Kerret, R. Roncin, T. Matsubara, Ying Sun, B. Reinhold, Stefan Schönert, John M. LoSecco, M. Elnimr, Michael Hofmann, C. Grant, D. Shrestha, J. Spitz, M. Bergevin, Stefan Roth, A.C. Schilithz, I. Bekman, A. Stüken, P.-J. Chang, J. M. López-Castaño, Muriel Fallot, Florian Kaether, J. Felde, D. Franco, Robert Svoboda, H. P. Lima, M. Dracos, G. Yang, 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), Département de Physique des Particules (ex SPP) (DPP), 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, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Département d'Ingénierie des Systèmes (ex SIS) (DIS), Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, Conrad, Janet, Spitz, Joshua B., Terao, K., Winslow, Lindley, 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), Département de Physique des Particules (ex SPP) (DPhP), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Center for Neutrino Physics, Abe, Y, Dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anado, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dhooghe, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, Von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, De Kerret, H, 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, Nikitenko, Y, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, Zimmera, V, Double Chooz Collaboration, 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: Physics, Neutrino Detectors and Telescopes, Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Neutrino Detectors and Telescope, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Electron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Scintillator, CHOOZ, Particle identification, High Energy Physics - Experiment, Positronium, Nuclear physics, High Energy Physics - Experiment (hep-ex), Positron, Inverse beta decay, High Energy Physics::Experiment, Neutrino, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: The Double Chooz experiment measures the neutrino mixing angle θ13 by detecting reactor ν¯e via inverse beta decay. The positron-neutron space and time coincidence allows for a sizable background rejection, nonetheless liquid scintillator detectors would profit from a positron/electron discrimination, if feasible in large detector, to suppress the remaining background. Standard particle identification, based on particle dependent time profile of photon emission in liquid scintillator, can not be used given the identical mass of the two particles. However, the positron annihilation is sometimes delayed by the ortho-positronium (o-Ps) metastable state formation, which induces a pulse shape distortion that could be used for positron identification. In this paper we report on the first observation of positronium formation in a large liquid scintillator detector based on pulse shape analysis of single events. The o-Ps formation fraction and its lifetime were measured, finding the values of 44% ± 12% (sys.) ± 5% (stat.) and 3.68ns ± 0.17ns (sys.) ± 0.15ns (stat.) respectively, in agreement with the results obtained with a dedicated positron annihilation lifetime spectroscopy setup., National Science Foundation (U.S.), United States. Dept. of Energy
Published: 2014
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49. Journal of High Energy Physics

Author: G. Mention, R. Svoboda, T. Kawasaki, P. Novella, J. Dhooghe, N. Vassilopoulos, Amanda Porta, D. Kryn, Zelimir Djurcic, N. Walsh, J. Reichenbacher, J. M. López-Castaño, H. de Kerret, H. H. Trinh Thi, R. Milincic, Yuri Kamyshkov, Muriel Fallot, J. Martino, A. Cucoanes, S. Shimojima, A.C. Schilithz, P.-J. Chang, A. Onillon, L. B. Bezrukov, I. Bekman, J.V. Dawson, G. A. Horton-Smith, M. Franke, Anatael Cabrera, R. Carr, A. Stüken, S. M. Fernandes, K. Crum, Florian Kaether, E. Blucher, J. I. Crespo-Anadón, Y. Nikitenko, T. Sumiyoshi, S. Perasso, A. Minotti, Alain Letourneau, J. Felde, D. Franco, Marcos Cerrada, M. Elnimr, V. V. Sinev, Eric Baussan, Marcos Dracos, David Lhuillier, Ernesto Kemp, L. Camilleri, E. Damon, R. Sharankova, V. Fischer, J. Maricic, Manfred Lindner, J. C. dos Anjos, Antoine Collin, D. Shrestha, M. Obolensky, R. Santorelli, Luis González, Cécile Jollet, B. Reinhold, E. Conover, M. Bergevin, Yoshio Abe, L. N. Kalousis, T.J.C. Bezerra, S. Lucht, S. Roth, J. M. LoSecco, Anselmo Meregaglia, J. Spitz, Lothar Oberauer, Daniel M. Kaplan, C. Palomares, A. Stahl, Y. Sakamoto, I. Gil-Botella, V. Zimmer, C. Grant, C. Veyssiere, Tobias Lachenmaier, V. Sibille, S. V. Sukhotin, E. Smith, H. P. Lima, A. Osborn, M. Kuze, N. Haag, Christian Buck, B. Rybolt, R. Roncin, J. C. Barriere, J. Busenitz, Ying Sun, C. Mariani, A. Hourlier, Lydie Giot, M. Röhling, Josef Jochum, Junpei Maeda, L. Goodenough, F. von Feilitzsch, D. Dietrich, Michael Hofmann, Stefan Wagner, Matthew L Strait, Janet Conrad, T. Hara, A. Tonazzo, M. Göger-Neff, Kazuhiro Terao, Christopher Wiebusch, Yasushi Nagasaka, G. A. Valdiviesso, S. Schönert, M. C. Goodman, T. Miletic, F. Yermia, I. M. Pepe, P. Chimenti, G. Pronost, P. Pfahler, C. E. Lane, T. Matsubara, E. Chauveau, M. H. Shaevitz, E. Caden, Masaki Ishitsuka, Lindley Winslow, Stefan Schoppmann, J. Haser, M. Vivier, M. D. Skorokhvatov, Michael Wurm, H. Watanabe, G. Yang, Bayarto Lubsandorzhiev, Thierry Lasserre, F. Suekane, L.F.F. Stokes, A.V. Etenko, I. Stancu, H. Furuta, Double Chooz Collaboration, 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), APC - Neutrinos, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-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)-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), AstroParticule et Cosmologie (APC (UMR_7164)), 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), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-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)-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), Abe, Y, dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dhooghe, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, de Kerret, H, 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, Nikitenko, Y, Novella, P, Oberauer, L, Obolensky, M, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Shrestha, D, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Walsh, N, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Université de Strasbourg (UNISTRA)-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)-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), and Center for Neutrino Physics
Subjects: Nuclear and High Energy Physics, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Physics - Instrumentation and Detectors, Neutrino Detectors and Telescope, FOS: Physical sciences, CHOOZ, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Experiment, Distortion, 0103 physical sciences, Energy spectrum, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Mixing (physics), Physics, Neutrino Detectors and Telescopes, 010308 nuclear & particles physics, Oscillation, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Detector, Function (mathematics), Instrumentation and Detectors (physics.ins-det), Neutrino, Instrumentation and Detectors
Abstract: The Double Chooz experiment presents improved measurements of the neutrino mixing angle $\theta_{13}$ using the data collected in 467.90 live days from a detector positioned at an average distance of 1050 m from two reactor cores at the Chooz nuclear power plant. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties with respect to previous publications, whereas the efficiency of the $\bar\nu_{e}$ signal has increased. The value of $\theta_{13}$ is measured to be $\sin^{2}2\theta_{13} = 0.090 ^{+0.032}_{-0.029}$ from a fit to the observed energy spectrum. Deviations from the reactor $\bar\nu_{e}$ prediction observed above a prompt signal energy of 4 MeV and possible explanations are also reported. A consistent value of $\theta_{13}$ is obtained from a fit to the observed rate as a function of the reactor power independently of the spectrum shape and background estimation, demonstrating the robustness of the $\theta_{13}$ measurement despite the observed distortion., Comment: 44 pages, 25 figures. Figures 21 and 22 have been replaced (statistical error bars for bins above 8 MeV have become smaller). No other changes in the results of the paper; an Erratum submitted to JHEP
Published: 2014
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