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1. The liquid-argon scintillation pulseshape in DEAP-3600

Author

N. J. T. Smith, V. Strickland, M. Batygov, B. Lehnert, J. B. McLaughlin, K. Dering, I. N. Machulin, P. Garcia Abia, T. Pollmann, J. F. Bueno, D. Goeldi, C. Ng, R. Santorelli, J. M. Corning, P. Skensved, D. Gallacher, Jocelyn Monroe, M. Waqar, E. A. Garcés, F. La Zia, M. Kuźniak, C. Rethmeier, Laurelle Maria Veloce, Miguel Cárdenas-Montes, G. Fiorillo, Stefano Cavuoti, T. Sánchez-Pastor, Mark Guy Boulay, P. Pasuthip, C. Hearns, F. Retiere, C. J. Jillings, C. Ouellet, C. Nantais, B. Smith, Bei Cai, E. Vázquez-Jáuregui, O. Kamaev, M. C. Piro, C. Stone, N. Levashko, A. Butcher, S. Westerdale, Darren Grant, P. Giampa, F. A. Duncan, B. Broerman, B. Beltran, N. Seeburn, O. Litvinov, P. Nadeau, A. Joy, X. Li, Monica Dunford, T. Sonley, S. Viel, A. L. Hallin, V. Pesudo, S. J. M. Peeters, N. Fatemighomi, R. Ford, P. Adhikari, E. Sanchez Garcia, Giuseppe Longo, J. Walding, P. Majewski, A. Kemp, G. Kaur, R. Ajaj, R. Mehdiyev, A. Ilyasov, S. Langrock, P. Gorel, B. T. Cleveland, Martin Ward, C. Mielnichuk, Bhaskar Sur, C. E. Bina, G. R. Araujo, P. J. Harvey, I. Kochanek, J. Lock, A. Zuñiga-Reyes, S. J. Daugherty, A. Erlandson, J. Willis, Luca Doria, S. Pal, S. Garg, E. T. Rand, V. V. Golovko, T. McGinn, T. McElroy, R. Stainforth, P. Di Stefano, A. Grobov, K. Graham, A. B. McDonald, Y. Chen, A. Flower, M. Stringer, A. J. Noble, G. Oliviéro, M. Hamstra, R. Gagnon, Adhikari, P., Ajaj, R., Araujo, G. R., Batygov, M., Beltran, B., Bina, C. E., Boulay, M. G., Broerman, B., Bueno, J. F., Butcher, A., Cai, B., Cárdenas-Montes, M., Cavuoti, S., Chen, Y., Cleveland, B. T., Corning, J. M., Daugherty, S. J., Di Stefano, P., Dering, K., Doria, L., Duncan, F. A., Dunford, M., Erlandson, A., Fatemighomi, N., Fiorillo, G., Flower, A., Ford, R. J., Gagnon, R., Gallacher, D., Garcés, E. A., García Abia, P., Garg, S., Giampa, P., Goeldi, D., Golovko, V. V., Gorel, P., Graham, K., Grant, D. R., Grobov, A., Hallin, A. L., Hamstra, M., Harvey, P. J., Hearns, C., Ilyasov, A., Joy, A., Jillings, C. J., Kamaev, O., Kaur, G., Kemp, A., Kochanek, I., Kuźniak, M., Langrock, S., La Zia, F., Lehnert, B., Levashko, N., Li, X., Litvinov, O., Lock, J., Longo, G., Machulin, I., Majewski, P., Mcdonald, A. B., Mcelroy, T., Mcginn, T., Mclaughlin, J. B., Mehdiyev, R., Mielnichuk, C., Monroe, J., Nadeau, P., Nantais, C., Ng, C., Noble, A. J., Oliviéro, G., Ouellet, C., Pal, S., Pasuthip, P., Peeters, S. J. M., Pesudo, V., Piro, M. -C., Pollmann, T. R., Rand, E. T., Rethmeier, C., Retière, F., Sanchez García, E., Sánchez-Pastor, T., Santorelli, R., Seeburn, N., Skensved, P., Smith, B., Smith, N. J. T., Sonley, T., Stainforth, R., Stone, C., Strickland, V., Stringer, M., Sur, B., Vázquez-Jáuregui, E., Veloce, L., Viel, S., Walding, J., Waqar, M., Ward, M., Westerdale, S., Willis, J., and Zuñiga-Reyes, A.

Subjects
Photomultiplier, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, lcsh:Astrophysics, Scintillator, Wavelength shifter, 01 natural sciences, Particle detector, DEAP, Optics, 0103 physical sciences, lcsh:QB460-466, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010306 general physics, Engineering (miscellaneous), Physics, Scintillation, 010308 nuclear & particles physics, business.industry, Instrumentation and Detectors (physics.ins-det), Scintillation counter, lcsh:QC770-798, business
Abstract

DEAP-3600 is a liquid-argon scintillation detector looking for dark matter. Scintillation events in the liquid argon (LAr) are registered by 255 photomultiplier tubes (PMTs), and pulseshape discrimination (PSD) is used to suppress electromagnetic background events. The excellent PSD performance of LAr makes it a viable target for dark matter searches, and the LAr scintillation pulseshape discussed here is the basis of PSD. The observed pulseshape is a combination of LAr scintillation physics with detector effects. We present a model for the pulseshape of electromagnetic background events in the energy region of interest for dark matter searches. The model is composed of (a) LAr scintillation physics, including the so-called intermediate component, (b) the time response of the TPB wavelength shifter, including delayed TPB emission at $${\mathcal {O}}$$O(ms) time-scales, and c) PMT response. TPB is the wavelength shifter of choice in most LAr detectors. We find that approximately 10% of the intensity of the wavelength-shifted light is in a long-lived state of TPB. This causes light from an event to spill into subsequent events to an extent not usually accounted for in the design and data analysis of LAr-based detectors.

Published
2020
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2. Pulse-shape discrimination against low-energy Ar-39 β decays in liquid argon with 4.5 tonne-years of DEAP-3600 data

Author

P. Adhikari, R. Ajaj, M. Alpízar-Venegas, P.-A. Amaudruz, D. J. Auty, M. Batygov, B. Beltran, H. Benmansour, C. E. Bina, J. Bonatt, W. Bonivento, M. G. Boulay, B. Broerman, J. F. Bueno, P. M. Burghardt, A. Butcher, M. Cadeddu, B. Cai, M. Cárdenas-Montes, S. Cavuoti, M. Chen, Y. Chen, B. T. Cleveland, J. M. Corning, D. Cranshaw, S. Daugherty, P. DelGobbo, K. Dering, J. DiGioseffo, P. Di Stefano, L. Doria, F. A. Duncan, M. Dunford, E. Ellingwood, A. Erlandson, S. S. Farahani, N. Fatemighomi, G. Fiorillo, S. Florian, T. Flower, R. J. Ford, R. Gagnon, D. Gallacher, P. García Abia, S. Garg, P. Giampa, D. Goeldi, V. Golovko, P. Gorel, K. Graham, D. R. Grant, A. Grobov, A. L. Hallin, M. Hamstra, P. J. Harvey, C. Hearns, T. Hugues, A. Ilyasov, A. Joy, B. Jigmeddorj, C. J. Jillings, O. Kamaev, G. Kaur, A. Kemp, I. Kochanek, M. Kuźniak, M. Lai, S. Langrock, B. Lehnert, A. Leonhardt, N. Levashko, X. Li, J. Lidgard, T. Lindner, M. Lissia, J. Lock, G. Longo, I. Machulin, A. B. McDonald, T. McElroy, T. McGinn, J. B. McLaughlin, R. Mehdiyev, C. Mielnichuk, J. Monroe, P. Nadeau, C. Nantais, C. Ng, A. J. Noble, E. O’Dwyer, G. Oliviéro, C. Ouellet, S. Pal, P. Pasuthip, S. J. M. Peeters, M. Perry, V. Pesudo, E. Picciau, M.-C. Piro, T. R. Pollmann, E. T. Rand, C. Rethmeier, F. Retière, I. Rodríguez-García, L. Roszkowski, J. B. Ruhland, E. Sánchez-García, R. Santorelli, D. Sinclair, P. Skensved, B. Smith, N. J. T. Smith, T. Sonley, J. Soukup, R. Stainforth, C. Stone, V. Strickland, M. Stringer, B. Sur, J. Tang, E. Vázquez-Jáuregui, S. Viel, J. Walding, M. Waqar, M. Ward, S. Westerdale, J. Willis, A. Zuñiga-Reyes, DEAP Collaboration, and Astroparticle Physics (IHEF, IoP, FNWI)

Subjects
Physics - Instrumentation and Detectors, Photon, Physics and Astronomy (miscellaneous), Regular Article - Experimental Physics, Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, QC770-798, Astrophysics, Computer Science::Digital Libraries, 01 natural sciences, 7. Clean energy, Signal, DEAP, Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Engineering (miscellaneous), Physics, Scintillation, 010308 nuclear & particles physics, Scattering, Detector, Instrumentation and Detectors (physics.ins-det), 3. Good health, Computational physics, Pulse (physics), QB460-466, Computer Science::Mathematical Software, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The DEAP-3600 detector searches for the scintillation signal from dark matter particles scattering on a 3.3 tonne liquid argon target. The largest background comes from $^{39}$Ar beta decays and is suppressed using pulseshape discrimination (PSD). We use two types of PSD algorithm: the prompt-fraction, which considers the fraction of the scintillation signal in a narrow and a wide time window around the event peak, and the log-likelihood-ratio, which compares the observed photon arrival times to a signal and a background model. We furthermore use two algorithms to determine the number of photons detected at a given time: (1) simply dividing the charge of each PMT pulse by the charge of a single photoelectron, and (2) a likelihood analysis that considers the probability to detect a certain number of photons at a given time, based on a model for the scintillation pulseshape and for afterpulsing in the light detectors. The prompt-fraction performs approximately as well as the log-likelihood-ratio PSD algorithm if the photon detection times are not biased by detector effects. We explain this result using a model for the information carried by scintillation photons as a function of the time when they are detected., 14 pages, 9 figures

Published
2021

3. Measurement of the distribution of 207Bi depositions on calibration sources for SuperNEMO

Author

R. Hodák, P. Guzowski, Y. Lemière, V. B. Brudanin, A. Chapon, R. Breier, T. Le Noblet, Dominique Durand, Vit Vorobel, M. Hoballah, F. Piquemal, S. Blondel, Fedor Šimkovic, A. Salamatin, Igor Nemchenok, J. L. Reyss, M. Macko, J. Busto, L. Dawson, A. Basharina-Freshville, M. Ceschia, M. Proga, J. Mott, C. Vilela, A. Minotti, F. Nova, R. B. Pahlka, R. Arnold, V. V. Timkin, Masaharu Nomachi, A. Jeremie, F. Perrot, J. K. Sedgbeer, John Evans, S. Calvez, W. S. Quinn, C. Patrick, Frédéric Nowacki, C. Cerna, V. Palusova, B. Morgan, M. Bongrand, D. Duchesneau, A. Remoto, X. Sarazin, R. Saakyan, C.S. Sutton, A. Pin, Vl. I. Tretyak, Karol Lang, I. Stekl, S. I. Konovalov, E. Chauveau, J. Žemlička, V. I. Tretyak, X.R. Liu, V.E. Kovalenko, G. Eurin, Y. Mora, F. Mauger, Hector Gomez, S. Söldner-Rembold, A. S. Barabash, V. I. Umatov, O.I. Kochetov, A. Chopra, Z. J. Liptak, D.V. Filosofov, L. Simard, H. Tedjditi, J. Kaizer, P. Franchini, A.A. Smolnikov, B. Guillon, S. De Capua, Pavel P. Povinec, C. Augier, S. Jullian, Jouni Suhonen, Ch. Marquet, H. Ohsumi, Y. A. Ramachers, J.P. Cesar, S. Torre, C. Girard-Carillo, D. Boursette, G. Szklarz, C. Macolino, P. Loaiza, M. H. Hussain, D. Waters, A. A. Klimenko, G. Oliviéro, R. L. Flack, R. Salazar, F. Xie, D. Lalanne, Yu. Shitov, J. C. Thomas, E. Birdsall, Arnold, R, Augier, C, Barabash, A, Basharina-Freshville, A, Birdsall, E, Blondel, S, Bongrand, M, Boursette, D, Breier, R, Brudanin, V, Busto, J, Calvez, S, Cerna, C, Cesar, J, Ceschia, M, Chapon, A, Chauveau, E, Chopra, A, Dawson, L, de Capua, S, Duchesneau, D, Durand, D, Eurin, G, Evans, J, Filosofov, D, Flack, R, Franchini, P, Girard-Carillo, C, Gomez, H, Guillon, B, Guzowski, P, Hoballah, M, Hodak, R, Hussain, M, Jeremie, A, Jullian, S, Kaizer, J, Klimenko, A, Kochetov, O, Konovalov, S, Kovalenko, V, Lalanne, D, Lang, K, Lemiere, Y, Le Noblet, T, Liptak, Z, Liu, X, Loaiza, P, Macko, M, Macolino, C, Marquet, C, Mauger, F, Minotti, A, Mora, Y, Morgan, B, Mott, J, Nemchenok, I, Nomachi, M, Nova, F, Nowacki, F, Ohsumi, H, Oliviero, G, Pahlka, R, Palusova, V, Patrick, C, Perrot, F, Pin, A, Piquemal, F, Povinec, P, Proga, M, Quinn, W, Ramachers, Y, Remoto, A, Reyss, J, Saakyan, R, Salamatin, A, Salazar, R, Sarazin, X, Sedgbeer, J, Shitov, Y, Simard, L, Simkovic, F, Smolnikov, A, Soldner-Rembold, S, Stekl, I, Suhonen, J, Sutton, C, Szklarz, G, Tedjditi, H, Thomas, J, Timkin, V, Torre, S, Tretyak, V, Umatov, V, Vilela, C, Vorobel, V, Waters, D, Xie, F, Zemlicka, J, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), SuperNEMO, 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 Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
data analysis method, topology, Physics - Instrumentation and Detectors, 010504 meteorology & atmospheric sciences, Distribution (number theory), Calibration (statistics), FOS: Physical sciences, Detector alignment and calibration methods (lasers, sources, Particle-beams), 01 natural sciences, 7. Clean energy, Neutrino Ettore Majorana Observatory, double-beta decay: (0neutrino), 0103 physical sciences, detector: pixel, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, Mathematical Physics, 0105 earth and related environmental sciences, Remote sensing, Physics, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), energy: calibration, Double-beta decay detector, droplet, experimental results
Abstract

The SuperNEMO experiment will search for neutrinoless double-beta decay ($0\nu\beta\beta$), and study the Standard-Model double-beta decay process ($2\nu\beta\beta$). The SuperNEMO technology can measure the energy of each of the electrons produced in a double-beta ($\beta\beta$) decay, and can reconstruct the topology of their individual tracks. The study of the double-beta decay spectrum requires very accurate energy calibration to be carried out periodically. The SuperNEMO Demonstrator Module will be calibrated using 42 calibration sources, each consisting of a droplet of $^{207}$Bi within a frame assembly. The quality of these sources, which depends upon the entire $^{207}$Bi droplet being contained within the frame, is key for correctly calibrating SuperNEMO's energy response. In this paper, we present a novel method for precisely measuring the exact geometry of the deposition of $^{207}$Bi droplets within the frames, using Timepix pixel detectors. We studied 49 different sources and selected 42 high-quality sources with the most central source positioning., Comment: 16 pages, 12 figures, submitted to JINST, response to reviewer comments

Published
2021
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4. Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector

Author

Miguel Cárdenas-Montes, G. Oliviéro, Luca Doria, M. G. Boulay, A. Kemp, G. Kaur, R. Stainforth, Stefano Cavuoti, Bei Cai, O. Litvinov, P. Gorel, M. C. Piro, Monica Dunford, O. Kamaev, F. Retiere, S. Viel, P. Skensved, Xiujiang Li, C. Rethmeier, S. S. Farahani, I. Kochanek, J. Lock, A. Zuñiga-Reyes, C. Jillings, T. Hugues, N. J. T. Smith, D. Gallacher, C. E. Bina, C. Mielnichuk, M. Cadeddu, S. Westerdale, Bhaskar Sur, S. Langrock, J. B. McLaughlin, M. Hamstra, T. Pollmann, P. DelGobbo, S. Garg, M. Kuźniak, V. Pesudo, T. Sonley, B. Jigmeddorj, Jocelyn Monroe, David A. Sinclair, Leszek Roszkowski, A. C. Vincent, S. J. M. Peeters, G. Fiorillo, W. Bonivento, J. Walding, R. Santorelli, J. M. Corning, P. Giampa, T. Sánchez-Pastor, B. C. Smith, A. Ilyasov, D. J. Auty, I. N. Machulin, M. Lai, M. Stringer, A. B. McDonald, N. Fatemighomi, R. Ajaj, P. Adhikari, E. Sanchez Garcia, A. Erlandson, Martin Ward, Giuseppe Longo, E. T. Rand, E. Vázquez-Jáuregui, P. Garcia Abia, S. Pal, A. Joy, J. Willis, B. Lehnert, N. Levashko, A. L. Hallin, B. T. Cleveland, M. Waqar, E. A. Garcés, A. Grobov, K. Graham, I. Rodríguez-García, S. J. Daugherty, Y. Chen, D. Goeldi, T. McElroy, P. Di Stefano, Adhikari, P., Ajaj, R., Auty, D. J., Bina, C. E., Bonivento, W., Boulay, M. G., Cadeddu, M., Cai, B., Cardenas-Montes, M., Cavuoti, S., Chen, Y., Cleveland, B. T., Corning, J. M., Daugherty, S., Delgobbo, P., Di Stefano, P., Doria, L., Dunford, M., Erlandson, A., Farahani, S. S., Fatemighomi, N., Fiorillo, G., Gallacher, D., Garces, E. A., Abia, P. Garcia, Garg, S., Giampa, P., Goeldi, D., Gorel, P., Graham, K., Grobov, A., Hallin, A. L., Hamstra, M., Hugues, T., Ilyasov, A., Joy, A., Jigmeddorj, B., Jillings, C. J., Kamaev, O., Kaur, G., Kemp, A., Kochanek, I, Kuzniak, M., Lai, M., Langrock, S., Lehnert, B., Levashko, N., Li, X., Litvinov, O., Lock, J., Longo, G., Machulin, I, Mcdonald, A. B., Mcelroy, T., Mclaughlin, J. B., Mielnichuk, C., Monroe, J., Oliviero, G., Pal, S., Peeters, S. J. M., Pesudo, V, Piro, M-C, Pollmann, T. R., Rand, E. T., Rethmeier, C., Retiere, F., Rodriguez-Garcia, I, Roszkowski, L., Sanchez Garcia, E., Sanchez-Pastor, T., Santorelli, R., Sinclair, D., Skensved, P., Smith, B., Smith, N. J. T., Sonley, T., Stainforth, R., Stringer, M., Sur, B., Vazquez-Jauregui, E., Viel, S., Vincent, A. C., Walding, J., Waqar, M., Ward, M., Westerdale, S., Willis, J., and Zuniga-Reyes, A.

Subjects
Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Isovector, 010308 nuclear & particles physics, Isoscalar, Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Astrophysics - Astrophysics of Galaxies, High Energy Physics - Experiment, Dark matter halo, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Weakly interacting massive particles, Astrophysics of Galaxies (astro-ph.GA), 0103 physical sciences, Effective field theory, Halo, 010306 general physics, Magnetic dipole, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

DEAP-3600 is a single-phase liquid argon detector aiming to directly detect Weakly Interacting Massive Particles (WIMPs), located at SNOLAB (Sudbury, Canada). After analyzing data taken during the first year of operation, a null result was used to place an upper bound on the WIMP-nucleon spin-independent, isoscalar cross section. This study reinterprets this result within a Non-Relativistic Effective Field Theory framework, and further examines how various possible substructures in the local dark matter halo may affect these constraints. Such substructures are hinted at by kinematic structures in the local stellar distribution observed by the Gaia satellite and other recent astronomical surveys. These include the Gaia Sausage (or Enceladus), as well as a number of distinct streams identified in recent studies. Limits are presented for the coupling strength of the effective contact interaction operators $\mathcal{O}_1$, $\mathcal{O}_3$, $\mathcal{O}_5$, $\mathcal{O}_8$, and $\mathcal{O}_{11}$, considering isoscalar, isovector, and xenonphobic scenarios, as well as the specific operators corresponding to millicharge, magnetic dipole, electric dipole, and anapole interactions. The effects of halo substructures on each of these operators are explored as well, showing that the $\mathcal{O}_5$ and $\mathcal{O}_8$ operators are particularly sensitive to the velocity distribution, even at dark matter masses above 100 GeV/$c^2$.

Published
2020

5. Search for the double-beta decay of 82Se to the excited states of 82Kr with NEMO-3

Author

F. Nova, Vit Vorobel, B. Morgan, C. L. Riddle, A. Smetana, Jose Busto, P. Guzowski, Y. Lemière, A. Remoto, A. Chapon, R. Breier, P. Loaiza, A. Basharina-Freshville, F. Xie, Yu. Shitov, J. C. Thomas, J. K. Sedgbeer, A.A. Smolnikov, Y. A. Ramachers, C. Cerna, M. Macko, A. Minotti, X. Sarazin, E. Chauveau, V.E. Kovalenko, Pavel P. Povinec, F. Mauger, G. Eurin, B. Richards, G. Szklarz, F. Perrot, Vl. I. Tretyak, O.I. Kochetov, C. Augier, H. Tedjditi, M. Cascella, S. Blot, S. Blondel, J.P. Cesar, S. Torre, B. Guillon, I. Stekl, Frédéric Nowacki, F. Piquemal, V. Palusova, F. Mamedov, Fedor Šimkovic, Igor Nemchenok, R. Salazar, A. Žukauskas, D. Duchesneau, J. Mott, L. Dawson, C. Vilela, P. Přidal, C. Hugon, Jouni Suhonen, R. Arnold, D. Lalanne, D. Waters, C.S. Sutton, Ch. Marquet, S. Söldner-Rembold, J. J. Evans, H. Gómez, A. Pin, Karol Lang, A. Huber, C. Patrick, A. A. Klimenko, D. Boursette, Ruben Saakyan, Guillaume Lutter, J. L. Reyss, R. B. Pahlka, I. Vanushin, L. Simard, G. Oliviéro, V. I. Tretyak, A. Chopra, Z. J. Liptak, Lukas Fajt, A. S. Barabash, H. Ohsumi, C. Girard-Carillo, Ph. Hubert, X. Garrido, T. Le Noblet, Dominique Durand, C. Macolino, R. L. Flack, M. Bongrand, D.V. Filosofov, S. Jullian, S. I. Konovalov, Masaharu Nomachi, S. Calvez, V. V. Timkin, V. G. Egorov, E. Rukhadze, X.R. Liu, V.I. Umatov, V. Brudanin, A. J. Caffrey, R. Hodák, Karel Smolek, B. Soulé, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), NEMO-3, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire d'Annecy de Physique des Particules (LAPP), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Particle Physics and Astronomy Research Council (PPARC), Science and Technology Facilities Council (STFC), 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 Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Arnold, R, Augier, C, Barabash, A, Basharina-Freshville, A, Blondel, S, Blot, S, Bongrand, M, Boursette, D, Breier, R, Brudanin, V, Busto, J, Caffrey, A, Calvez, S, Cascella, M, Cerna, C, Cesar, J, Chapon, A, Chauveau, E, Chopra, A, Dawson, L, Duchesneau, D, Durand, D, Egorov, V, Eurin, G, Evans, J, Fajt, L, Filosofov, D, Flack, R, Garrido, X, Girard-Carillo, C, Gomez, H, Guillon, B, Guzowski, P, Hodak, R, Huber, A, Hubert, P, Hugon, C, Jullian, S, Klimenko, A, Kochetov, O, Konovalov, S, Kovalenko, V, Lalanne, D, Lang, K, Lemiere, Y, Le Noblet, T, Liptak, Z, Liu, X, Loaiza, P, Lutter, G, Macko, M, Macolino, C, Mamedov, F, Marquet, C, Mauger, F, Minotti, A, Morgan, B, Mott, J, Nemchenok, I, Nomachi, M, Nova, F, Nowacki, F, Ohsumi, H, Oliviero, G, Pahlka, R, Palusova, V, Patrick, C, Perrot, F, Pin, A, Piquemal, F, Povinec, P, Pridal, P, Ramachers, Y, Remoto, A, Reyss, J, Richards, B, Riddle, C, Rukhadze, E, Saakyan, R, Salazar, R, Sarazin, X, Sedgbeer, J, Shitov, Y, Simard, L, Simkovic, F, Smetana, A, Smolek, K, Smolnikov, A, Soldner-Rembold, S, Soule, B, Stekl, I, Suhonen, J, Sutton, C, Szklarz, G, Tedjditi, H, Thomas, J, Timkin, V, Torre, S, Tretyak, V, Umatov, V, Vanushin, I, Vilela, C, Vorobel, V, Waters, D, Xie, F, and Zukauskas, A

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Analytical chemistry, Se, Double beta decay, Excited state, Neutrino, FOS: Physical sciences, gamma ray: particle identification, 01 natural sciences, NO, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), PE2_2, Neutrino Ettore Majorana Observatory, 0201 Astronomical and Space Sciences, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 82Se, Double beta decay, Neutrino, 82Se, excited state, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, physics.ins-det, 0206 Quantum Physics, Physics, hep-ex, 010308 nuclear & particles physics, double-beta decay, Instrumentation and Detectors (physics.ins-det), State (functional analysis), krypton: nuclide, Nuclear & Particles Physics, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, selenium: nuclide, nucleus: excited state, experimental results
Abstract

The double-beta decay of 82Se to the 0 1 + excited state of 82Kr has been studied with the NEMO-3 detector using 0.93 kg of enriched 82Se measured for 4.75 y, corresponding to an exposure of 4.42 kg⋅y. A dedicated analysis to reconstruct the γ-rays has been performed to search for events in the 2e2γ channel. No evidence of a 2 ν β β decay to the 0 1 + state has been observed and a limit of T 1 / 2 2 ν ( Se 82 , 0 g s + → 0 1 + ) > 1.3 × 10 21 y at 90% CL has been set. Concerning the 0 ν β β decay to the 0 1 + state, a limit for this decay has been obtained with T 1 / 2 0 ν ( Se 82 , 0 g s + → 0 1 + ) > 2.3 × 10 22 y at 90% CL, independently from the 2 ν β β decay process. These results are obtained for the first time with a tracko-calo detector, reconstructing every particle in the final state.

Published
2020
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6. Detailed studies of $^{100}$Mo two-neutrino double beta decay in NEMO-3

Author

S. Blot, I. Vanushin, Lukas Fajt, M. Bongrand, Frédéric Nowacki, Karel Smolek, R. Saakyan, C. Vilela, B. Soulé, C. Augier, Masaharu Nomachi, Vl. I. Tretyak, S. Jullian, A. Smetana, V.E. Kovalenko, H. Gómez, Y. A. Ramachers, Jose Busto, F. Mauger, J. J. Evans, P. Guzowski, Y. Lemière, A. S. Barabash, S. Calvez, C. Patrick, A. Huber, D.V. Filosofov, M. Macko, Jouni Suhonen, A. Chapon, X. Sarazin, F. Xie, A. Chopra, Z. J. Liptak, A. J. Caffrey, R. Hodák, A. Žukauskas, V.I. Umatov, J.P. Cesar, Ph. Hubert, S. Torre, C. Girard-Carillo, X. Garrido, V. G. Egorov, O.I. Kochetov, S. Söldner-Rembold, F. Mamedov, E. Rukhadze, Yu. Shitov, V. Brudanin, D. Boursette, G. Eurin, D. Waters, J. C. Thomas, J. K. Sedgbeer, S. I. Konovalov, H. Ohsumi, F. Piquemal, T. Le Noblet, E. Chauveau, Guillaume Lutter, Dominique Durand, R. Dvornický, C. Cerna, Kevin Lang, Pavel P. Povinec, Ch. Marquet, C. Macolino, G. Oliviéro, C. Hugon, F. Nova, A. Minotti, A. Pin, R. L. Flack, L. Dawson, D. Lalanne, J. L. Reyss, B. Morgan, Michele Cascella, P. Loaiza, C. L. Riddle, R. B. Pahlka, L. Simard, D. Duchesneau, A. Remoto, R. Salazar, X.R. Liu, C.S. Sutton, R. Arnold, V. I. Tretyak, A.A. Smolnikov, G. Szklarz, B. Guillon, Fedor Šimkovic, P. Přidal, Igor Nemchenok, J. Mott, V. V. Timkin, Vit Vorobel, A. Salamatin, A. Basharina-Freshville, F. Perrot, H. Tedjditi, S. Blondel, I. Stekl, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), NEMO-3, Arnold, R, Augier, C, Barabash, A, Basharina-Freshville, A, Blondel, S, Blot, S, Bongrand, M, Boursette, D, Brudanin, V, Busto, J, Caffrey, A, Calvez, S, Cascella, M, Cerna, C, Cesar, J, Chapon, A, Chauveau, E, Chopra, A, Dawson, L, Duchesneau, D, Durand, D, Dvornicky, R, Egorov, V, Eurin, G, Evans, J, Fajt, L, Filosofov, D, Flack, R, Garrido, X, Girard-Carillo, C, Gomez, H, Guillon, B, Guzowski, P, Hodak, R, Huber, A, Hubert, P, Hugon, C, Jullian, S, Kochetov, O, Konovalov, S, Kovalenko, V, Lalanne, D, Lang, K, Lemiere, Y, Noblet, T, Liptak, Z, Liu, X, Loaiza, P, Lutter, G, Macko, M, Macolino, C, Mamedov, F, Marquet, C, Mauger, F, Minotti, A, Morgan, B, Mott, J, Nemchenok, I, Nomachi, M, Nova, F, Nowacki, F, Ohsumi, H, Oliviero, G, Pahlka, R, Patrick, C, Perrot, F, Pin, A, Piquemal, F, Povinec, P, Pridal, P, Ramachers, Y, Remoto, A, Reyss, J, Riddle, C, Rukhadze, E, Saakyan, R, Salamatin, A, Salazar, R, Sarazin, X, Sedgbeer, J, Shitov, Y, Simard, L, Simkovic, F, Smetana, A, Smolek, K, Smolnikov, A, Soldner-Rembold, S, Soule, B, Stekl, I, Suhonen, J, Sutton, C, Szklarz, G, Tedjditi, H, Thomas, J, Timkin, V, Torre, S, Tretyak, V, Umatov, V, Vanushin, I, Vilela, C, Vorobel, V, Waters, D, Xie, F, Zukauskas, A, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire d'Annecy de Physique des Particules (LAPP), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), 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 Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Science and Technology Facilities Council (STFC)

Subjects
Particle physics, S029MT, Physics and Astronomy (miscellaneous), FOS: Physical sciences, Elementary particle, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nucl-ex, invariance: Lorentz, 01 natural sciences, 7. Clean energy, neutrinoless double beta decay, decay modes, Physics, Particles & Fields, double-beta decay: (0neutrino), SEARCH, Double beta decay, 0103 physical sciences, ground state, Nuclear Experiment (nucl-ex), 010306 general physics, 0206 Quantum Physics, Engineering (miscellaneous), Nuclear Experiment, Majoron, S076H2N, Physics, Science & Technology, HALF-LIFE, 010308 nuclear & particles physics, MO-100, High Energy Physics::Phenomenology, Nuclear & Particles Physics, violation: Lorentz, nucleus: transition, STATES, statistics, Physical Sciences, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, spectral, electron: energy spectrum, High Energy Physics::Experiment, Neutrino, Ground state, Energy (signal processing), Radioactive decay, Lepton
Abstract

The full data set of the NEMO-3 experiment has been used to measure the half-life of the two-neutrino double beta decay of $^{100}$Mo to the ground state of $^{100}$Ru, $T_{1/2} = \left[ 6.81 \pm 0.01\,\left(\mbox{stat}\right) ^{+0.38}_{-0.40}\,\left(\mbox{syst}\right) \right] \times10^{18}$ y. The two-electron energy sum, single electron energy spectra and distribution of the angle between the electrons are presented with an unprecedented statistics of $5\times10^5$ events and a signal-to-background ratio of ~80. Clear evidence for the Single State Dominance model is found for this nuclear transition. Limits on Majoron emitting neutrinoless double beta decay modes with spectral indices of n=2,3,7, as well as constraints on Lorentz invariance violation and on the bosonic neutrino contribution to the two-neutrino double beta decay mode are obtained., 11 pages, 9 figures

Published
2019
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7. The BiPo-3 detector for the measurement of ultra low natural radioactivities of thin materials

Author

A.S. Barabash, A. Basharina-Freshville, E. Birdsall, S. Blondel, S. Blot, M. Bongrand, D. Boursette, V. Brudanin, J. Busto, A.J. Caffrey, S. Calvez, M. Cascella, S. Cebrián, C. Cerna, J.P Cesar, E. Chauveau, A. Chopra, T. Dafní, S. De Capua, D. Duchesneau, D. Durand, V. Egorov, G. Eurin, J.J. Evans, L. Fajt, D. Filosofov, R. Flack, X. Garrido, H. Gómez, B. Guillon, P. Guzowski, K. Holý, R. Hodák, A. Huber, C. Hugon, F.J. Iguaz, I.G. Irastorza, A. Jeremie, S. Jullian, M. Kauer, A. Klimenko, O. Kochetov, S.I. Konovalov, V. Kovalenko, K. Lang, Y. Lemière, T. Le Noblet, Z. Liptak, X.R. Liu, P. Loaiza, G. Lutter, G. Luzón, M. Macko, F. Mamedov, C. Marquet, F. Mauger, B. Morgan, J. Mott, I. Nemchenok, M. Nomachi, F. Nova, H. Ohsumi, G. Oliviéro, A. Ortiz de Solórzano, R.B. Pahlka, J. Pater, F. Perrot, F. Piquemal, P. Povinec, P. Přidal, Y.A. Ramachers, A. Remoto, B. Richards, C.L. Riddle, E. Rukhadze, R. Saakyan, R. Salazar, X. Sarazin, Yu. Shitov, L. Simard, F. Šimkovic, A. Smetana, K. Smolek, A. Smolnikov, S. Söldner-Rembold, B. Soulé, I. Štekl, J. Thomas, V. Timkin, S. Torre, Vl.I. Tretyak, V.I. Tretyak, V.I. Umatov, C. Vilela, V. Vorobel, D. Waters, A. Žukauskas, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), SuperNEMO, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Physics, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Canfranc Underground Laboratory, Detector, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), 010403 inorganic & nuclear chemistry, 01 natural sciences, 3. Good health, 0104 chemical sciences, Nuclear physics, Activity measurements, 0103 physical sciences, Sensitivity (control systems), [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, Mathematical Physics
Abstract

The BiPo-3 detector, running in the Canfranc Underground Laboratory (Laboratorio Subterr\'aneo de Canfranc, LSC, Spain) since 2013, is a low-radioactivity detector dedicated to measuring ultra low natural radionuclide contaminations of $^{208}$Tl ($^{232}$Th chain) and $^{214}$Bi ($^{238}$U chain) in thin materials. The total sensitive surface area of the detector is 3.6 m$^2$. The detector has been developed to measure radiopurity of the selenium double $\beta$-decay source foils of the SuperNEMO experiment. In this paper the design and performance of the detector, and results of the background measurements in $^{208}$Tl and $^{214}$Bi, are presented, and validation of the BiPo-3 measurement with a calibrated aluminium foil is discussed. Results of the $^{208}$Tl and $^{214}$Bi activity measurements of the first enriched $^{82}$Se foils of the double $\beta$-decay SuperNEMO experiment are reported. The sensitivity of the BiPo-3 detector for the measurement of the SuperNEMO $^{82}$Se foils is $\mathcal{A}$($^{208}$Tl) $, Comment: 37 pages, 29 figures

Published
2017
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