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28 results on '"M. de Combarieu"'

1. WEST full tungsten operation with an ITER grade divertor

Author

J. Bucalossi, A. Ekedahl, and the WEST Team, J. Achard, K. Afonin, O. Agullo, T. Alarcon, L. Allegretti, F. Almuhisen, H. Ancher, G. Antar, Y. Anquetin, S. Antusch, V. Anzallo, C. Arnas, J.F. Artaud, M.H. Aumeunier, S.G. Baek, X.Y. Bai, M. Balden, C. Balorin, T. Barbui, A. Barbuti, J. Barlerin, J. Barra, V. Basiuk, T. Batal, O. Baulaigue, A. Bec, M. Becoulet, E. Benoit, E. Bernard, J.M. Bernard, M. Bernert, N. Bertelli, E. Bertrand, P. Beyer, J. Bielecki, P. Bienvenu, R. Bisson, B. Bliewert, G. Bodner, S. Bose, C. Bottereau, C. Bouchand, Y. Boumendjel, F. Bouquey, C. Bourdelle, J. Bourg, S. Brezinsek, F. Brochard, C. Brun, V. Bruno, H. Bufferand, A. Bureau, S. Burles, Y. Camenen, B. Cantone, E. Caprin, M. Carole, S. Carpentier-Chouchana, G. Caulier, F. Causa, N. Cazanave, N. Chanet, O. Chellai, Y. Chen, M. Chernyshova, P. Chmielewski, W. Choe, A. Chomiczewska, G. Ciraolo, F. Clairet, J. Coenen, L. Colas, G. Colledani, J. Colnel, P. Coquillat, E. Corbel, Y. Corre, X. Courtois, T. Czarski, A. Da Ros, R. Daniel, J. Daumas, M. De Combarieu, P. De Vries, C. Dechelle, F. Deguara, R. Dejarnac, J.M. Delaplanche, L.F. Delgado-Aparicio, E. Delmas, L. Delpech, C. Desgranges, P. Devynck, J. Denis, S. Di Genova, R. Diab, A. Diallo, M. Diez, G. Dif-Pradalier, M. Dimitrova, R. Ding, T. Dittmar, L. Doceul, M. Domenes, D. Donovan, D. Douai, L. Dubus, N. Dumas, R. Dumont, F. Durand, A. Durif, F. Durodié, D. Elbeze, S. Ertmer, A. Escarguel, F. Escourbiac, B. Esposito, K. Ezato, F. Faisse, J.L. Farjon, N. Faure, N. Fedorczak, P. Fejoz, F. Felici, C. Fenzi-Bonizec, F. Ferlay, L. Ferrand, L. Fevre, M. Firdaouss, L. Fleury, D. Flouquet, T. Fonghetti, A. Gallo, X. Garbet, J. Garcia, J.L. Gardarein, L. Gargiulo, P. Garibaldi, S. Garitta, J. Gaspar, E. Gauthier, S. Gazzotti, F. Gely, J. Gerardin, G. Gervasini, E. Geulin, M. Geynet, P. Ghendrih, I. Giacalone, C. Gil, S. Ginoux, S. Girard, E. Giroux, G. Giruzzi, M. Goniche, V. Gorse, T. Gray, E. Grelier, C. Grisolia, A. Grosjean, A. Grosman, O. Grover, D. Guibert, D. Guilhem, C. Guillemaut, B. Guillermin, R. Guirlet, J.P. Gunn, Y. Gunsu, T. Gyergyek, S. Hacquin, A. Hakola, J. Harris, J.C. Hatchressian, W. Helou, P. Hennequin, C. Hernandez, L. Hijazi, J. Hillairet, T. Hirai, G.T. Hoang, C. Honoré, M. Houry, A. Huart, G. Huijsmans, P. Huynh, M. Iafrati, F. Imbeaux, N. Imbert, I. Ivanova-Stanik, P. Ivanova, R. Jalageas, A. Jamann, C. Jammes, A. Jardin, L. Jaubert, G. Jiolat, E. Joffrin, C. Johnson, A. Jonas, A. Kirschner, C.C. Klepper, M. Komm, M. Koubiti, S. Kosslow, J. Kovacic, M. Kozeiha, K. Krieger, K. Krol, I. Kudashev, B. Lacroix, L. Laguardia, V. Lamaison, V. Lapleigne, H. Laqua, C. Lau, Y. Lausenaz, R. Lé, M. Le Bohec, N. Lefevre, N. Lemoine, E. Lerche, Y. Lesourd, L. Letellier, M. Lewerentz, Y. Li, A. Liang, P. Linczuk, C. Linsmeier, M. Lipa, X. Litaudon, X. Liu, J. Llorens, T. Loarer, A. Loarte, T. Loewenhoff, G. Lombard, J. Lore, P. Lorenzetto, B. Lu, A. Lumsdaine, R. Lunsford, T. Lunt, G. Luo, P. Magaud, P. Maget, J.F. Mahieu, P. Maini, P. Malard, K. Malinowski, P. Manas, L. Manenc, V. Maquet, Y. Marandet, C. Martin, E.J. Martin, P. Martino, M. Mayer, D. Mazon, S. Mazzi, P. Messina, L. Meunier, D. Midou, G. Miglionico, Y. Mineo, M. Missirlian, R. Mitteau, B. Mitu, D. Moiraf, P. Mollard, G. Momparler, V. Moncada, T. Mondiere, C. Monti, J. Morales, M. Moreau, Ph. Moreau, Y. Moudden, G. Moureau, D. Mouyon, M. Muraglia, T. Nakano, E. Nardon, A. Neff, F. Nespoli, J. Nichols, L. Nicolas, S. Nicollet, R. Nouailletas, M. Ono, V. Ostuni, O. Paillat, C. Parish, H. Park, H. Parrat, J.Y. Pascal, B. Pegourie, F.P. Pellissier, Y. Peneliau, M. Peret, E. Pignoly, G. Pintsuk, R. Pitts, C. Pocheau, A. Podolnik, C. Portafaix, M. Poulos, P. Prochet, A. Puig Sitjes, R. Ragona, M. Rasinski, S. Ratynskaia, G. Raup, X. Regal-Mezin, C. Reux, J. Rice, M. Richou, F. Rigollet, N. Rivals, H. Roche, S. Rodrigues, J. Romazanov, G. Ronchi, C. Ruset, R. Sabot, A. Saille, R. Sakamoto, B. Salamon, F. Samaille, A. Santagiustina, B. Santraine, Y. Sarazin, O. Sauter, Y. Savoie-Peysson, L. Schiesko, M. Scholz, J.L. Schwob, E. Serre, H. Shin, S. Shiraiwa, Ja. Signoret, O. Skalli-Fettachi, P. Sogorb, Y. Song, A. Spring, P. Spuig, S. Sridhar, B. Stratton, C. Talatizi, P. Tamain, R. Tatali, Q. Tichit, A. Torre, L. Toulouse, W. Treutterer, E. Tsitrone, E.A. Unterberg, G. Urbanczyk, G. Van Rooij, N. Varadarajan, S. Vartanian, E. Velly, J.M. Verger, L. Vermare, D. Vezinet, N. Vignal, B. Vincent, S. Vives, D. Volpe, G. Wallace, E. Wang, L. Wang, Y. Wang, Y.S. Wang, T. Wauters, D. Weldon, B. Wirth, M. Wirtz, A. Wojenski, M. Xu, Q.X. Yang, H. Yang, B. Zago, R. Zagorski, B. Zhang, X.J. Zhang, X.L. Zou, and the EUROfusion Tokamak Exploitation Team

Subjects
nuclear fusion, magnetic confinement, tokamak, divertor, WEST, ITER, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

The mission of WEST (tungsten-W Environment in Steady-state Tokamak) is to explore long pulse operation in a full tungsten (W) environment for preparing next-step fusion devices (ITER and DEMO) with a focus on testing the ITER actively cooled W divertor in tokamak conditions. Following the successful completion of phase 1 (2016-2021), phase 2 started in December 2022 with the lower divertor made entirely of actively cooled ITER-grade tungsten mono-blocks. A boronization prior the first plasma attempt allowed for a smooth startup with the new divertor. Despite the reduced operating window due to tungsten, rapid progress has been made in long pulse operation, resulting in discharges with a pulse length of 100 s and an injected energy of around 300 MJ per discharge. Plasma startup studies were carried out with equatorial boron nitride limiters to compare them with tungsten limiters, while Ion Cyclotron Resonance Heating assisted startup was attempted. High fluence operation in attached regime, which was the main thrust of the first campaigns, already showed the progressive build up of deposits and appearance of dust, impacting the plasma operation as the plasma fluence increased. In total, the cumulated injected energy during the first campaigns reached 43 GJ and the cumulated plasma time exceeded 5 h. Demonstration of controlled X-Point Radiator regime is also reported, opening a promising route for investigating plasma exhaust and plasma-wall interaction issues in more detached regime. This paper summarises the lessons learned from the manufacturing and the first operation of the ITER-grade divertor, describing the progress achieved in optimising operation in a full W environment with a focus on long pulse operation and plasma wall interaction.

Published
2024
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2. Characterization of cubic Li $$_{2}$$ 2 $$^{100}$$ 100 MoO $$_4$$ 4 crystals for the CUPID experiment

Author

The CUPID Collaboration, A. Armatol, E. Armengaud, W. Armstrong, C. Augier, F. T. Avignone, O. Azzolini, A. Barabash, G. Bari, A. Barresi, D. Baudin, F. Bellini, G. Benato, M. Beretta, L. Bergé, M. Biassoni, J. Billard, V. Boldrini, A. Branca, C. Brofferio, C. Bucci, J. Camilleri, S. Capelli, L. Cappelli, L. Cardani, P. Carniti, N. Casali, A. Cazes, E. Celi, C. Chang, M. Chapellier, A. Charrier, D. Chiesa, M. Clemenza, I. Colantoni, F. Collamati, S. Copello, O. Cremonesi, R. J. Creswick, A. Cruciani, A. D’Addabbo, G. D’Imperio, I. Dafinei, F. A. Danevich, M. de Combarieu, M. De Jesus, P. de Marcillac, S. Dell’Oro, S. Di Domizio, V. Dompè, A. Drobizhev, L. Dumoulin, G. Fantini, M. Faverzani, E. Ferri, F. Ferri, F. Ferroni, E. Figueroa-Feliciano, J. Formaggio, A. Franceschi, C. Fu, S. Fu, B. K. Fujikawa, J. Gascon, A. Giachero, L. Gironi, A. Giuliani, P. Gorla, C. Gotti, P. Gras, M. Gros, T. D. Gutierrez, K. Han, E. V. Hansen, K. M. Heeger, D. L. Helis, H. Z. Huang, R. G. Huang, L. Imbert, J. Johnston, A. Juillard, G. Karapetrov, G. Keppel, H. Khalife, V. V. Kobychev, Yu. G. Kolomensky, S. Konovalov, Y. Liu, P. Loaiza, L. Ma, M. Madhukuttan, F. Mancarella, R. Mariam, L. Marini, S. Marnieros, M. Martinez, R. H. Maruyama, B. Mauri, D. Mayer, Y. Mei, S. Milana, D. Misiak, T. Napolitano, M. Nastasi, X. F. Navick, J. Nikkel, R. Nipoti, S. Nisi, C. Nones, E. B. Norman, V. Novosad, I. Nutini, T. O’Donnell, E. Olivieri, C. Oriol, J. L. Ouellet, S. Pagan, C. Pagliarone, L. Pagnanini, P. Pari, L. Pattavina, B. Paul, M. Pavan, H. Peng, G. Pessina, V. Pettinacci, C. Pira, S. Pirro, D. V. Poda, T. Polakovic, O. G. Polischuk, S. Pozzi, E. Previtali, A. Puiu, A. Ressa, R. Rizzoli, C. Rosenfeld, C. Rusconi, V. Sanglard, J. A. Scarpaci, B. Schmidt, V. Sharma, V. Shlegel, V. Singh, M. Sisti, D. Speller, P. T. Surukuchi, L. Taffarello, O. Tellier, C. Tomei, V. I. Tretyak, A. Tsymbaliuk, M. Velazquez, K. J. Vetter, S. L. Wagaarachchi, G. Wang, L. Wang, B. Welliver, J. Wilson, K. Wilson, L. A. Winslow, M. Xue, L. Yan, J. Yang, V. Yefremenko, V. Yumatov, M. M. Zarytskyy, J. Zhang, A. Zolotarova, and S. Zucchelli

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract The CUPID Collaboration is designing a tonne-scale, background-free detector to search for double beta decay with sufficient sensitivity to fully explore the parameter space corresponding to the inverted neutrino mass hierarchy scenario. One of the CUPID demonstrators, CUPID-Mo, has proved the potential of enriched Li $$_{2}$$ 2 $$^{100}$$ 100 MoO $$_4$$ 4 crystals as suitable detectors for neutrinoless double beta decay search. In this work, we characterised cubic crystals that, compared to the cylindrical crystals used by CUPID-Mo, are more appealing for the construction of tightly packed arrays. We measured an average energy resolution of ( $$6.7\pm 0.6$$ 6.7 ± 0.6 ) keV FWHM in the region of interest, approaching the CUPID target of 5 keV FWHM. We assessed the identification of $$\alpha $$ α particles with and without a reflecting foil that enhances the scintillation light collection efficiency, proving that the baseline design of CUPID already ensures a complete suppression of this $$\alpha $$ α -induced background contribution. We also used the collected data to validate a Monte Carlo simulation modelling the light collection efficiency, which will enable further optimisations of the detector.

Published
2021
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3. Precise measurement of $$2\nu \beta \beta $$ 2νββ decay of $$^{100}$$ 100 Mo with the CUPID-Mo detection technology

Author

E. Armengaud, C. Augier, A. S. Barabash, F. Bellini, G. Benato, A. Benoît, M. Beretta, L. Bergé, J. Billard, Yu. A. Borovlev, Ch. Bourgeois, M. Briere, V. Brudanin, P. Camus, L. Cardani, N. Casali, A. Cazes, M. Chapellier, F. Charlieux, M. de Combarieu, I. Dafinei, F. A. Danevich, M. De Jesus, L. Dumoulin, K. Eitel, E. Elkhoury, F. Ferri, B. K. Fujikawa, J. Gascon, L. Gironi, A. Giuliani, V. D. Grigorieva, M. Gros, E. Guerard, D. L. Helis, H. Z. Huang, R. Huang, J. Johnston, A. Juillard, H. Khalife, M. Kleifges, V. V. Kobychev, Yu. G. Kolomensky, S. I. Konovalov, A. Leder, J. Kotila, P. Loaiza, L. Ma, E. P. Makarov, P. de Marcillac, L. Marini, S. Marnieros, D. Misiak, X.-F. Navick, C. Nones, V. Novati, E. Olivieri, J. L. Ouellet, L. Pagnanini, P. Pari, L. Pattavina, B. Paul, M. Pavan, H. Peng, G. Pessina, S. Pirro, D. V. Poda, O. G. Polischuk, E. Previtali, Th. Redon, S. Rozov, C. Rusconi, V. Sanglard, K. Schäffner, B. Schmidt, Y. Shen, V. N. Shlegel, B. Siebenborn, V. Singh, C. Tomei, V. I. Tretyak, V. I. Umatov, L. Vagneron, M. Velázquez, M. Weber, B. Welliver, L. Winslow, M. Xue, E. Yakushev, and A. S. Zolotarova

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract We report the measurement of the two-neutrino double-beta ($$2\nu \beta \beta $$ 2νββ ) decay of $$^{100}$$ 100 Mo to the ground state of $$^{100}$$ 100 Ru using lithium molybdate ($$\hbox {Li}_2^{\;\;100}\hbox {MoO}_4$$ Li2100MoO4 ) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory (France). From a total exposure of 42.235 kg$$\times $$ × day, the half-life of $$^{100}$$ 100 Mo is determined to be $$T_{1/2}^{2\nu }=[7.12^{+0.18}_{-0.14}\,\mathrm {(stat.)}\pm 0.10\,\mathrm {(syst.)}]\times 10^{18}$$ T1/22ν=[7.12-0.14+0.18(stat.)±0.10(syst.)]×1018 years. This is the most accurate determination of the $$2\nu \beta \beta $$ 2νββ half-life of $$^{100}$$ 100 Mo to date.

Published
2020
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4. The 0ν2β-decay CROSS experiment: preliminary results and prospects

Author

The CROSS collaboration, I. C. Bandac, A. S. Barabash, L. Bergé, M. Brière, C. Bourgeois, P. Carniti, M. Chapellier, M. de Combarieu, I. Dafinei, F. A. Danevich, N. Dosme, D. Doullet, L. Dumoulin, F. Ferri, A. Giuliani, C. Gotti, P. Gras, E. Guerard, A. Ianni, H. Khalife, S. I. Konovalov, E. Legay, P. Loaiza, P. de Marcillac, S. Marnieros, C. A. Marrache-Kikuchi, C. Nones, V. Novati, E. Olivieri, C. Oriol, G. Pessina, D. V. Poda, T. Redon, V. I. Tretyak, V. I. Umatov, M. M. Zarytsky, and A. S. Zolotarova

Subjects
Dark Matter and Double Beta Decay (experiments), Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract Neutrinoless double-beta decay is a key process in particle physics. Its experimental investigation is the only viable method that can establish the Majorana nature of neutrinos, providing at the same time a sensitive inclusive test of lepton number violation. CROSS (Cryogenic Rare-event Observatory with Surface Sensitivity) aims at developing and testing a new bolometric technology to be applied to future large-scale experiments searching for neutrinoless double-beta decay of the promising nuclei 100Mo and 130Te. The limiting factor in large-scale bolometric searches for this rare process is the background induced by surface radioactive contamination, as shown by the results of the CUORE experiment. The basic concept of CROSS consists of rejecting this challenging background component by pulse-shape discrimination, assisted by a proper coating of the faces of the crystal containing the isotope of interest and serving as energy absorber of the bolometric detector. In this paper, we demonstrate that ultra-pure superconductive Al films deposited on the crystal surfaces act successfully as pulse-shape modifiers, both with fast and slow phonon sensors. Rejection factors higher than 99.9% of α surface radioactivity have been demonstrated in a series of prototypes based on crystals of Li2MoO4 and TeO2. We have also shown that point-like energy depositions can be identified up to a distance of ∼ 1 mm from the coated surface. The present program envisions an intermediate experiment to be installed underground in the Canfranc laboratory (Spain) in a CROSS-dedicated facility. This experiment, comprising ∼ 3×1025 nuclei of 100Mo, will be a general test of the CROSS technology as well as a worldwide competitive search for neutrinoless double-beta decay, with sensitivity to the effective Majorana mass down to 70 meV in the most favorable conditions.

Published
2020
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5. The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects

Author

E. Armengaud, C. Augier, A. S. Barabash, F. Bellini, G. Benato, A. Benoît, M. Beretta, L. Bergé, J. Billard, Yu. A. Borovlev, Ch. Bourgeois, M. Briere, V. B. Brudanin, P. Camus, L. Cardani, N. Casali, A. Cazes, M. Chapellier, F. Charlieux, M. de Combarieu, I. Dafinei, F. A. Danevich, M. De Jesus, L. Dumoulin, K. Eitel, E. Elkhoury, F. Ferri, B. K. Fujikawa, J. Gascon, L. Gironi, A. Giuliani, V. D. Grigorieva, M. Gros, E. Guerard, D. L. Helis, H. Z. Huang, R. Huang, J. Johnston, A. Juillard, H. Khalife, M. Kleifges, V. V. Kobychev, Yu. G. Kolomensky, S. I. Konovalov, A. Leder, P. Loaiza, L. Ma, E. P. Makarov, P. de Marcillac, L. Marini, S. Marnieros, D. Misiak, X. -F. Navick, C. Nones, V. Novati, E. Olivieri, J. L. Ouellet, L. Pagnanini, P. Pari, L. Pattavina, B. Paul, M. Pavan, H. Peng, G. Pessina, S. Pirro, D. V. Poda, O. G. Polischuk, E. Previtali, Th. Redon, S. Rozov, C. Rusconi, V. Sanglard, K. Schäffner, B. Schmidt, Y. Shen, V. N. Shlegel, B. Siebenborn, V. Singh, S. Sorbino, C. Tomei, V. I. Tretyak, V. I. Umatov, L. Vagneron, M. Velázquez, M. Weber, B. Welliver, L. Winslow, M. Xue, E. Yakushev, and A. S. Zolotarova

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract CUPID-Mo is a bolometric experiment to search for neutrinoless double-beta decay ($$0\nu \beta \beta $$ 0νββ ) of $$^{100}\hbox {Mo}$$ 100Mo . In this article, we detail the CUPID-Mo detector concept, assembly and installation in the Modane underground laboratory, providing results from the first datasets. The CUPID-Mo detector consists of an array of 20 $$^{100}\hbox {Mo}$$ 100Mo -enriched 0.2 kg $$\hbox {Li}_2\hbox {MoO}_4$$ Li2MoO4 crystals operated as scintillating bolometers at $$\sim 20\hbox { mK}$$ ∼20mK . The $$\hbox {Li}_2\hbox {MoO}_4$$ Li2MoO4 crystals are complemented by 20 thin Ge optical bolometers to reject $$\alpha $$ α events by the simultaneous detection of heat and scintillation light. We observe a good detector uniformity and an excellent energy resolution of 5.3 keV (6.5 keV) FWHM at 2615 keV, in calibration (physics) data. Light collection ensures the rejection of $$\alpha $$ α particles at a level much higher than 99.9% – with equally high acceptance for $$\gamma $$ γ /$$\beta $$ β events – in the region of interest for $$^{100}\hbox {Mo}$$ 100Mo $$0\nu \beta \beta $$ 0νββ . We present limits on the crystals’ radiopurity: $$\le 3~\mu \hbox {Bq/kg}$$ ≤3μBq/kg of $$^{226}\hbox {Ra}$$ 226Ra and $$\le 2~\mu \hbox {Bq/kg}$$ ≤2μBq/kg of $$^{232}\hbox {Th}$$ 232Th . We discuss the science reach of CUPID-Mo, which can set the most stringent half-life limit on the $$^{100}\hbox {Mo}$$ 100Mo $$0\nu \beta \beta $$ 0νββ decay in half-a-year’s livetime. The achieved results show that CUPID-Mo is a successful demonstrator of the technology developed by the LUMINEU project and subsequently selected for the CUPID experiment, a proposed follow-up of CUORE, the currently running first tonne-scale bolometric $$0\nu \beta \beta $$ 0νββ experiment.

Published
2020
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6. Development of $$^{100}\hbox {Mo}$$ 100 Mo -containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search

Author

E. Armengaud, C. Augier, A. S. Barabash, J. W. Beeman, T. B. Bekker, F. Bellini, A. Benoît, L. Bergé, T. Bergmann, J. Billard, R. S. Boiko, A. Broniatowski, V. Brudanin, P. Camus, S. Capelli, L. Cardani, N. Casali, A. Cazes, M. Chapellier, F. Charlieux, D. M. Chernyak, M. de Combarieu, N. Coron, F. A. Danevich, I. Dafinei, M. De Jesus, L. Devoyon, S. Di Domizio, L. Dumoulin, K. Eitel, C. Enss, F. Ferroni, A. Fleischmann, N. Foerster, J. Gascon, L. Gastaldo, L. Gironi, A. Giuliani, V. D. Grigorieva, M. Gros, L. Hehn, S. Hervé, V. Humbert, N. V. Ivannikova, I. M. Ivanov, Y. Jin, A. Juillard, M. Kleifges, V. V. Kobychev, S. I. Konovalov, F. Koskas, V. Kozlov, H. Kraus, V. A. Kudryavtsev, M. Laubenstein, H. Le Sueur, M. Loidl, P. Magnier, E. P. Makarov, M. Mancuso, P. de Marcillac, S. Marnieros, C. Marrache-Kikuchi, S. Nagorny, X-F. Navick, M. O. Nikolaichuk, C. Nones, V. Novati, E. Olivieri, L. Pagnanini, P. Pari, L. Pattavina, M. Pavan, B. Paul, Y. Penichot, G. Pessina, G. Piperno, S. Pirro, O. Plantevin, D. V. Poda, E. Queguiner, T. Redon, M. Rodrigues, S. Rozov, C. Rusconi, V. Sanglard, K. Schäffner, S. Scorza, V. N. Shlegel, B. Siebenborn, O. Strazzer, D. Tcherniakhovski, C. Tomei, V. I. Tretyak, V. I. Umatov, L. Vagneron, Ya. V. Vasiliev, M. Velázquez, M. Vignati, M. Weber, E. Yakushev, and A. S. Zolotarova

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract This paper reports on the development of a technology involving $$^{100}\hbox {Mo}$$ 100 Mo -enriched scintillating bolometers, compatible with the goals of CUPID, a proposed next-generation bolometric experiment to search for neutrinoless double-beta decay. Large mass ( $$\sim 1~\hbox {kg}$$ ∼ 1 kg ), high optical quality, radiopure $$^{100}\hbox {Mo}$$ 100 Mo -containing zinc and lithium molybdate crystals have been produced and used to develop high performance single detector modules based on 0.2–0.4 kg scintillating bolometers. In particular, the energy resolution of the lithium molybdate detectors near the Q-value of the double-beta transition of $$^{100}\hbox {Mo}$$ 100 Mo (3034 keV) is 4–6 keV FWHM. The rejection of the $$\alpha $$ α -induced dominant background above 2.6 MeV is better than $$8\sigma $$ 8 σ . Less than $$10~\upmu \hbox {Bq/kg}$$ 10 μ Bq/kg activity of $$^{232}\hbox {Th}\, (^{228}\hbox {Th})$$ 232 Th ( 228 Th ) and $$^{226}\hbox {Ra}$$ 226 Ra in the crystals is ensured by boule recrystallization. The potential of $$^{100}\hbox {Mo}$$ 100 Mo -enriched scintillating bolometers to perform high sensitivity double-beta decay searches has been demonstrated with only $$10~\hbox {kg}\times \hbox {d}$$ 10 kg × d exposure: the two neutrino double-beta decay half-life of $$^{100}\hbox {Mo}$$ 100 Mo has been measured with the up-to-date highest accuracy as $$T_{1/2}$$ T 1 / 2 = [6.90 ± 0.15(stat.) ± 0.37(syst.)] $$\times ~10^{18}~\hbox {years}$$ × 10 18 years . Both crystallization and detector technologies favor lithium molybdate, which has been selected for the ongoing construction of the CUPID-0/Mo demonstrator, containing several kg of $$^{100}\hbox {Mo}$$ 100 Mo .

Published
2017
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7. Machine Learning Techniques for Pile-Up Rejection in Cryogenic Calorimeters

Author

G. Fantini, A. Armatol, E. Armengaud, W. Armstrong, C. Augier, F. T. Avignone, O. Azzolini, A. Barabash, G. Bari, A. Barresi, D. Baudin, F. Bellini, G. Benato, M. Beretta, L. Bergé, M. Biassoni, J. Billard, V. Boldrini, A. Branca, C. Brofferio, C. Bucci, J. Camilleri, S. Capelli, L. Cappelli, L. Cardani, P. Carniti, N. Casali, A. Cazes, E. Celi, C. Chang, M. Chapellier, A. Charrier, D. Chiesa, M. Clemenza, I. Colantoni, F. Collamati, S. Copello, F. Cova, O. Cremonesi, R. J. Creswick, A. Cruciani, A. D’Addabbo, G. D’Imperio, I. Dafinei, F. A. Danevich, M. de Combarieu, M. De Jesus, P. de Marcillac, S. Dell’Oro, S. Di Domizio, V. Dompè, A. Drobizhev, L. Dumoulin, M. Fasoli, M. Faverzani, E. Ferri, F. Ferri, F. Ferroni, E. Figueroa-Feliciano, J. Formaggio, A. Franceschi, C. Fu, S. Fu, B. K. Fujikawa, J. Gascon, A. Giachero, L. Gironi, A. Giuliani, P. Gorla, C. Gotti, P. Gras, M. Gros, T. D. Gutierrez, K. Han, E. V. Hansen, K. M. Heeger, D. L. Helis, H. Z. Huang, R. G. Huang, L. Imbert, J. Johnston, A. Juillard, G. Karapetrov, G. Keppel, H. Khalife, V. V. Kobychev, Yu. G. Kolomensky, S. Konovalov, Y. Liu, P. Loaiza, L. Ma, M. Madhukuttan, F. Mancarella, R. Mariam, L. Marini, S. Marnieros, M. Martinez, R. H. Maruyama, B. Mauri, D. Mayer, Y. Mei, S. Milana, D. Misiak, T. Napolitano, M. Nastasi, X. F. Navick, J. Nikkel, R. Nipoti, S. Nisi, C. Nones, E. B. Norman, V. Novosad, I. Nutini, T. O’Donnell, E. Olivieri, C. Oriol, J. L. Ouellet, S. Pagan, C. Pagliarone, L. Pagnanini, P. Pari, L. Pattavina, B. Paul, M. Pavan, H. Peng, G. Pessina, V. Pettinacci, C. Pira, S. Pirro, D. V. Poda, T. Polakovic, O. G. Polischuk, S. Pozzi, E. Previtali, A. Puiu, A. Ressa, R. Rizzoli, C. Rosenfeld, C. Rusconi, V. Sanglard, J. Scarpaci, B. Schmidt, V. Sharma, V. Shlegel, V. Singh, M. Sisti, D. Speller, P. T. Surukuchi, L. Taffarello, O. Tellier, C. Tomei, V. I. Tretyak, A. Tsymbaliuk, A. Vedda, M. Velazquez, K. J. Vetter, S. L. Wagaarachchi, G. Wang, L. Wang, B. Welliver, J. Wilson, K. Wilson, L. A. Winslow, M. Xue, L. Yan, J. Yang, V. Yefremenko, V. Yumatov, M. M. Zarytskyy, J. Zhang, A. Zolotarova, S. Zucchelli, Fantini, G, Armatol, A, Armengaud, E, Armstrong, W, Augier, C, Avignone, FT, Azzolini, O, Barabash, A, Bari, G, Barresi, A, Baudin, D, Bellini, F, Benato, G, Beretta, M, Berge, L, Biassoni, M, Billard, J, Boldrini, V, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cazes, A, Celi, E, Chang, C, Chapellier, M, Charrier, A, Chiesa, D, Clemenza, M, Colantoni, I, Collamati, F, Copello, S, Cova, F, Cremonesi, O, Creswick, RJ, Cruciani, A, D'Addabbo, A, D'Imperio, G, Dafinei, I, Danevich, FA, de Combarieu, M, De Jesus, M, de Marcillac, P, Dell'Oro, S, Di Domizio, S, Dompe, V, Drobizhev, A, Dumoulin, L, Fasoli, M, Faverzani, M, Ferri, E, Ferri, F, Ferroni, F, Formaggio, J, Franceschi, A, Fu, C, Fu, S, Fujikawa, BK, Gascon, J, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gras, P, Gros, M, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Helis, DL, Huang, HZ, Huang, RG, Imbert, L, Johnston, J, Juillard, A, Karapetrov, G, Keppel, G, Khalife, H, Kobychev, VV, Kolomensky, YG, Konovalov, S, Liu, Y, Loaiza, P, Ma, L, Madhukuttan, M, Mancarella, F, Mariam, R, Marini, L, Marnieros, S, Martinez, M, Maruyama, RH, Mauri, B, Mayer, D, Mei, Y, Milana, S, Misiak, D, Napolitano, T, Nastasi, M, Navick, XF, Nikkel, J, Nipoti, R, Nisi, S, Nones, C, Norman, EB, Novosad, V, Nutini, I, O'Donnell, T, Olivieri, E, Oriol, C, Ouellet, JL, Pagan, S, Pagliarone, C, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Poda, DV, Polakovic, T, Polischuk, OG, Pozzi, S, Previtali, E, Puiu, A, Ressa, A, Rizzoli, R, Rosenfeld, C, Rusconi, C, Sanglard, V, Scarpaci, J, Schmidt, B, Sharma, V, Shlegel, V, Singh, V, Sisti, M, Speller, D, Surukuchi, PT, Taffarello, L, Tellier, O, Tomei, C, Tretyak, VI, Tsymbaliuk, A, Vedda, A, Velazquez, M, Vetter, KJ, Wagaarachchi, SL, Wang, G, Wang, L, Welliver, B, Wilson, J, Wilson, K, Winslow, LA, Xue, M, Yan, L, Yang, J, Yefremenko, V, Yumatov, V, Zarytskyy, MM, Zhang, J, Zolotarova, A, Zucchelli, S, Laboratoire de Cryogénie (LC), Service de physique de l'état condensé (SPEC - UMR3680), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Avignone, F, Bergé, L, Creswick, R, D’Addabbo, A, D’Imperio, G, Danevich, F, Dell’Oro, S, Domizio, S, Dompè, V, Figueroa-Feliciano, E, Fujikawa, B, Gutierrez, T, Hansen, E, Heeger, K, Helis, D, Huang, H, Huang, R, Kobychev, V, Kolomensky, Y, Maruyama, R, Navick, X, Norman, E, O’Donnell, T, Ouellet, J, Poda, D, Polischuk, O, Surukuchi, P, Tretyak, V, Vetter, K, Wagaarachchi, S, Winslow, L, and Zarytskyy, M

Subjects
neural network, Convolutional neural network, hierarchy, crystal, Cryogenic calorimeters, neutrino, Machine learning, CUPID, calorimeter, [INFO]Computer Science [cs], General Materials Science, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Neutrinoless double beta decay, neutrinoless, Pile-up, CUORE, background, double-beta decay, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Gran Sasso, injection, cryogenics, efficiency, mass, readout, Convolutional neural networks, upgrade, Cryogenic calorimeter, performance, Majorana
Abstract

CUORE Upgrade with Particle IDentification (CUPID) is a foreseen ton-scale array of Li2MoO4 (LMO) cryogenic calorimeters with double readout of heat and light signals. Its scientific goal is to fully explore the inverted hierarchy of neutrino masses in the search for neutrinoless double beta decay of 100Mo. Pile-up of standard double beta decay of the candidate isotope is a relevant background. We generate pile-up heat events via injection of Joule heater pulses with a programmable waveform generator in a small array of LMO crystals operated underground in the Laboratori Nazionali del Gran Sasso, Italy. This allows to label pile-up pulses and control both time difference and underlying amplitudes of individual heat pulses in the data. We present the performance of supervised learning classifiers on data and the attained pile-up rejection efficiency.

Published
2022
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8. Optimization of a single module of CUPID

Author

Alberto Ressa, A. Armatol, E. Armengaud, W. Armstrong, C. Augier, F. T. Avignone, O. Azzolini, A. Barabash, G. Bari, A. Barresi, D. Baudin, F. Bellini, G. Benato, M. Beretta, L. Bergé, M. Biassoni, J. Billard, V. Boldrini, A. Branca, C. Brofferio, C. Bucci, J. Camilleri, S. Capelli, L. Cappelli, L. Cardani, P. Carniti, N. Casali, A. Cazes, E. Celi, A. Chang, M. Chapellier, A. Charrier, D. Chiesa, M. Clemenza, I. Colantoni, F. Collamati, S. Copello, O. Cremonesi, R. J. Creswick, A. Cruciani, A. D’ Addabbo, G. D’ Imperio, I. Dafinei, F. A. Danevich, M. de Combarieu, M. De Jesus, P. de Marcillac, S. Dell’Oro, S. Di Domizio, V. Dompè, A. Drobizhev, L. Dumoulin, G. Fantini, M. Faverzani, E. Ferri, F. Ferri, F. Ferroni, E. Figueroa-Feliciano, J. Formaggio, A. Franceschi, C. Fu, S. Fu, B. K. Fujikawa, J. Gascon, A. Giachero, L. Gironi, A. Giuliani, P. Gorla, C. Gotti, P. Gras, M. Gros, T. D. Gutierrez, K. Han, E. V. Hansen, K. M. Heeger, B. L. Helis, H.Z. Huang, R. G. Huang, L. Imbert, J. Johnston, A. Juillard, G. Karapetrov, G. Keppel, H. Khalife, V. V. Kobychev, Yu. G. Kolomensky, S. Konovalov, Y. Liu, P. Loaiza, L. Ma, M. Madhukuttan, F. Mancarella, R. Mariam, L. Marini, S. Marnieros, M. Martinez, R. H. Maruyama, B. Mauri, D. Mayer, Y. Mei, S. Milana, D. Misiak, T. Napolitano, M. Nastasi, X. F. Navick, J. Nikkel, R. Nipoti, S. Nisi, C. Nones, C. B. Norman, V. Novosad, I. Nutini, T. O’Donnell, E. Olivieri, C. Oriol, J. L. Ouellet, S. Pagan, C. Pagliarone, L. Pagnanini, P. Pari, L. Pattavina, B. Paul, M. Pavan, H. Peng, G. Pessina, V. Pettinacci, C. Pira, S. Pirro, D. V. Poda, T. Polakovic, O. G. Polischuk, S. Pozzi, E. Previtali, A. Puiu, A. Ressa, R. Rizzoli, C. Rosenfeld, C. Rusconi, V. Sanglard, J. Scarpaci, B. Schmidt, V. Sharma, V. Shlegel, V. Singh, M. Sisti, D. Speller, P. T. Surukuchi, L. Taffarello, O. Tellier, C. Tomei, V. I. Tretyak, A. Tsymbaliuk, M. Velazquez, K. J. Vetter, S. L. Wagaarachchi, G. Wang, L. Wang, B. Welliver, J. Wilson, K. Wilson, L. A. Winslow, M. Xue, L. Yan, J. Yang, V. Yefremenko, V. Yumatov, M. M. Zarytskyy, J. Zhang, A. Zolotarova, S. Zucchelli, 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 de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), and CUPID

Subjects
photon yield, History, tector design, helium background, energy resolution, lithium, molybdenum nuclide, molybdenum oxygen, scintillation counter, crystal bolometer, CUORE performance, photon yield, Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics, energy resolution, helium background, molybdenum oxygen, CUORE performance, Computer Science Applications, Education, Gran Sasso, double-beta decay: (0neutrino), lithium, crystal bolometer, molybdenum nuclide, calorimeter: cryogenics, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], activity report, scintillation counter, detector: design, performance, tector design
Abstract

CUPID is the next generation experiment which will use scintillating cryogenic calorimeters to search for the neutrinoless double β decay. This unobserved process would shed light on the nature of the neutrino, which up to our knowledge could be a Majorana or a Dirac particle, and would give us an important hint to explain the lack of antimatter in the universe. This ambitious search needs a detector with unique characteristics such as an extremely low background level and an excellent energy resolution. CUPID is now in advanced R&D state to optimize the detector design in order to completely exploit the potentialities of scintillating cryogenic calorimeters. In the following I will describe the test performed at the LNGS (Laboratori Nazionali del Gran Sasso) of a single module of the future CUPID detector. In this contribution we present the performance obtained with a novel assembly concept, proving that it matches the requirements for CUPID.

Published
2021
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9. New Limit for Neutrinoless Double-Beta Decay of Mo100 from the CUPID-Mo Experiment

Author

F. Charlieux, B. Schmidt, V. B. Brudanin, X. F. Navick, Luc Bergé, Jonathan Ouellet, B. Siebenborn, M. Pavan, I. Dafinei, V.I. Umatov, O. G. Polischuk, Virendra Singh, S. Pirro, M. de Combarieu, Yu. A. Borovlev, L. Gironi, C. Augier, S. V. Rozov, L. Ma, L. Dumoulin, V. Sanglard, M. Beretta, V. I. Tretyak, A. Leder, Davide Chiesa, M. De Jesus, K. Schäffner, Giovanni Benato, K. Eitel, H. Khalife, V.V. Kobychev, D. L. Helis, H. Z. Huang, D. Misiak, A. S. Barabash, A. S. Zolotarova, Ezio Previtali, P. Loaiza, A. Rojas, Ph. Camus, G. Pessina, B. Welliver, S. I. Konovalov, V.D. Grigorieva, J. A. Scarpaci, P. de Marcillac, N. Casali, E. Guerard, F.A. Danevich, E. Yakushev, L. Marini, D. V. Poda, F. Bellini, Haiping Peng, C. Nones, C. Tomei, Yao Shen, J. Johnston, R. G. Huang, E. Olivieri, M. Xue, P. Pari, Eric B. Norman, Laura Cardani, C. Rusconi, M. Gros, J. Gascon, L. Pattavina, B. K. Fujikawa, M. Kleifges, Federico Ferri, S. Marnieros, M. M. Zarytskyy, Alain Benoit, Ch. Bourgeois, E. Armengaud, S. Pozzi, M. Chapellier, T. Dixon, Lindley Winslow, A. Juillard, Matias Velázquez, L. Vagneron, A. Cazes, E. P. Makarov, R. Mariam, V.N. Shlegel, Yu. G. Kolomensky, B. Paul, A. Giuliani, Th. Redon, J. Billard, L. Pagnanini, and V. Novati

Subjects
Physics, Nuclear physics, MAJORANA, Double beta decay, 0103 physical sciences, General Physics and Astronomy, Limit (mathematics), Neutrino, 010306 general physics, 7. Clean energy, 01 natural sciences
Abstract

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale bolometric 0νββ experiment. It consists of a 4.2 kg array of 20 enriched Li_{2}^{100}MoO_{4} scintillating bolometers to search for the lepton-number-violating process of 0νββ decay in ^{100}Mo. With more than one year of operation (^{100}Mo exposure of 1.17 kg×yr for physics data), no event in the region of interest and, hence, no evidence for 0νββ is observed. We report a new limit on the half-life of 0νββ decay in ^{100}Mo of T_{1/2}>1.5×10^{24} yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass ⟨m_{ββ}⟩

Published
2021
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10. Characterization of cubic Li 2100 MoO 4 crystals for the CUPID experiment

Author

Federico Ferri, Stefano Dell'Oro, J. Camilleri, V. Shlegel, N. Casali, R. Rizzoli, F. Bellini, A. Ressa, J. A. Scarpaci, C. Augier, Goran Karapetrov, G. Fantini, P. Gras, M. I. Martínez, F.A. Danevich, L. Pagnanini, P. T. Surukuchi, A. Drobizhev, S. H. Fu, C. Oriol, I. Dafinei, T. O'Donnell, E. Figueroa-Feliciano, P. Loaiza, Jie Yang, S. Copello, Haiping Peng, Oliviero Cremonesi, L. Wang, A. Franceschi, C. Pagliarone, Davide Chiesa, Paolo Carniti, A. Juillard, Andrea Barresi, V.I. Tretyak, E. V. Hansen, M. Xue, S. Zucchelli, C. Pira, O. G. Polischuk, X. F. Navick, R. J. Creswick, L. Marini, K. Wilson, I. Colantoni, D. Misiak, C. Rusconi, J. Billard, D. V. Poda, J. Johnston, Jonathan Ouellet, A. Charrier, A. Cruciani, S. L. Wagaarachchi, G. Bari, F. Collamati, V. Yumatov, J. Gascon, C. C. Chang, Stefano Nisi, Changbo Fu, G. Pessina, S. Pirro, L. Pattavina, S. Marnieros, Jie Zhang, G. Wang, G. D'Imperio, A. Cazes, Yuting Liu, E. Celi, Massimiliano Clemenza, A. Tsymbaliuk, Monica Sisti, Valentyn Novosad, I. Nutini, S. Milana, R. Nipoti, C. Nones, A. Puiu, M. Chapellier, H. Z. Huang, V. G. Yefremenko, R. Mariam, B. Schmidt, G. Keppel, Yu. G. Kolomensky, Luigi Cappelli, D. Mayer, O. Tellier, L. Ma, Y. Mei, R. G. Huang, F. Mancarella, M. Faverzani, L. Dumoulin, M. Madhukuttan, H. Khalife, M. Gros, Kai Vetter, S. Di Domizio, D. Baudin, P. Pari, A. Armatol, Giovanni Benato, M. Beretta, Tomas Polakovic, L. Taffarello, Virendra Singh, Danielle Speller, Laura Cardani, K. M. Heeger, B. K. Fujikawa, E. Olivieri, Eric B. Norman, L. Yan, T. Napolitano, S. Pagan, M. Biassoni, B. Mauri, V. Pettinacci, M. de Combarieu, O. Azzolini, M. M. Zarytskyy, A. Giachero, Claudio Gotti, S. I. Konovalov, L. Gironi, Lindley Winslow, M. Pavan, James Nikkel, F. T. Avignone, Whitney Armstrong, V. Sanglard, L. Imbert, C. Bucci, T. D. Gutierrez, C. Brofferio, A. S. Barabash, Ezio Previtali, B. Welliver, P. de Marcillac, D. L. Helis, A. S. Zolotarova, Ke Han, Reina H. Maruyama, B. Paul, A. Giuliani, Silvia Capelli, Massimiliano Nastasi, James R. Wilson, M. De Jesus, E. Armengaud, V. Sharma, Matias Velázquez, V. V. Kobychev, L. Bergé, A. Branca, C. Rosenfeld, V. Boldrini, P. Gorla, F. Ferroni, C. Tomei, Emanuele Ferri, Joseph A. Formaggio, S. Pozzi, V. Dompè, A. D'Addabbo, 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 de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), Institut Rayonnement Matière de Saclay (IRAMIS), Service de physique de l'état condensé (SPEC - UMR3680), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), CUPID, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Armatol A., Armengaud E., Armstrong W., Augier C., Avignone F.T., Azzolini O., Barabash A., Bari G., Barresi A., Baudin D., Bellini F., Benato G., Beretta M., Berge L., Biassoni M., Billard J., Boldrini V., Branca A., Brofferio C., Bucci C., Camilleri J., Capelli S., Cappelli L., Cardani L., Carniti P., Casali N., Cazes A., Celi E., Chang C., Chapellier M., Charrier A., Chiesa D., Clemenza M., Colantoni I., Collamati F., Copello S., Cremonesi O., J.Creswick R., Cruciani A., D'Addabbo A., D'Imperio G., Dafinei I., A.Danevich F., deCombarieu M., DeJesus M., deMarcillac P., Dell'Oro S., DiDomizio S., Dompe V., Drobizhev A., Dumoulin L., Fantini G., Faverzani M., Ferri E., Ferri F., Ferroni F., Figueroa-Feliciano E., Formaggio J., Franceschi A., Fu C., Fu S., Fujikawa B.K., Gascon J., Giachero A., Gironi L., Giuliani A., Gorla P., Gotti C., Gras P., Gros M., Gutierrez T.D., Han K., Hansen E.V., Heeger K.M., Helis D.L., Huang H.Z., Huang R.G., Imbert L., Johnston J., Juillard A., Karapetrov G., Keppel G., Khalife H., Kobychev V.V., Kolomensky Y.G., Konovalov S., Liu Y., Loaiza P., Ma L., Madhukuttan M., Mancarella F., Mariam R., Marini L., Marnieros S., Martinez M., Maruyama R.H., Mauri B., Mayer D., Mei Y., Milana S., Misiak D., Napolitano T., Nastasi M., Navick X.F., Nikkel J., Nipoti R., Nisi S., Nones C., Norman E.B., Novosad V., Nutini I., O'Donnell T., Olivieri E., Oriol C., Ouellet J.L., Pagan S., Pagliarone C., Pagnanini L., Pari P., Pattavina L., Paul B., Pavan M., Peng H., Pessina G., Pettinacci V., Pira C., Pirro S., V.Poda D., Polakovic T., Polischuk O.G., Pozzi S., Previtali E., Puiu A., Ressa A., Rizzoli R., Rosenfeld C., Rusconi C., Sanglard V., Scarpaci J.A., Schmidt B., Sharma V., Shlegel V., Singh V., Sisti M., Speller D., Surukuchi P.T., Taffarello L., Tellier O., Tomei C., Tretyak V.I., Tsymbaliuk A., Velazquez M., Vetter K.J., Wagaarachchi S.L., Wang G., Wang L., Welliver B., Wilson J., Wilson K., Winslow L.A., Xue M., Yan L., Yang J., Yefremenko V., Yumatov V., Zarytskyy M.M., Zhang J., Zolotarova A., Zucchelli S., Armatol, A, Armengaud, E, Armstrong, W, Augier, C, Avignone, F, Azzolini, O, Barabash, A, Bari, G, Barresi, A, Baudin, D, Bellini, F, Benato, G, Beretta, M, Berge, L, Biassoni, M, Billard, J, Boldrini, V, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cazes, A, Celi, E, Chang, C, Chapellier, M, Charrier, A, Chiesa, D, Clemenza, M, Colantoni, I, Collamati, F, Copello, S, Cremonesi, O, J. Creswick, R, Cruciani, A, D'Addabbo, A, D'Imperio, G, Dafinei, I, A. Danevich, F, Decombarieu, M, Dejesus, M, Demarcillac, P, Dell'Oro, S, Didomizio, S, Dompe, V, Drobizhev, A, Dumoulin, L, Fantini, G, Faverzani, M, Ferri, E, Ferri, F, Ferroni, F, Figueroa-Feliciano, E, Formaggio, J, Franceschi, A, Fu, C, Fu, S, Fujikawa, B, Gascon, J, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gras, P, Gros, M, Gutierrez, T, Han, K, Hansen, E, Heeger, K, Helis, D, Huang, H, Huang, R, Imbert, L, Johnston, J, Juillard, A, Karapetrov, G, Keppel, G, Khalife, H, Kobychev, V, Kolomensky, Y, Konovalov, S, Liu, Y, Loaiza, P, Ma, L, Madhukuttan, M, Mancarella, F, Mariam, R, Marini, L, Marnieros, S, Martinez, M, Maruyama, R, Mauri, B, Mayer, D, Mei, Y, Milana, S, Misiak, D, Napolitano, T, Nastasi, M, Navick, X, Nikkel, J, Nipoti, R, Nisi, S, Nones, C, Norman, E, Novosad, V, Nutini, I, O'Donnell, T, Olivieri, E, Oriol, C, Ouellet, J, Pagan, S, Pagliarone, C, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, V. Poda, D, Polakovic, T, Polischuk, O, Pozzi, S, Previtali, E, Puiu, A, Ressa, A, Rizzoli, R, Rosenfeld, C, Rusconi, C, Sanglard, V, Scarpaci, J, Schmidt, B, Sharma, V, Shlegel, V, Singh, V, Sisti, M, Speller, D, Surukuchi, P, Taffarello, L, Tellier, O, Tomei, C, Tretyak, V, Tsymbaliuk, A, Velazquez, M, Vetter, K, Wagaarachchi, S, Wang, G, Wang, L, Welliver, B, Wilson, J, Wilson, K, Winslow, L, Xue, M, Yan, L, Yang, J, Yefremenko, V, Yumatov, V, Zarytskyy, M, Zhang, J, Zolotarova, A, and Zucchelli, S

Subjects
Mo-100, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), background: induced, Physics::Instrumentation and Detectors, Monte Carlo method, measurement methods, bolometers, neutrinoless double beta decay, energy resolution, Parameter space, 01 natural sciences, Nuclear Experiment (nucl-ex), Double Beta Decay, Nuclear Experiment, background: suppression, Physics, Detector, Instrumentation and Detectors (physics.ins-det), Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators), molybdenum: oxygen, Double-beta decay detector, Low Temperature Detector, lithium, Scintillation counter, Neutrino, photon: yield, numerical calculations: Monte Carlo, bolometers, FOS: Physical sciences, Cryogenic detector, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], neutrinoless double beta decay, Particle identification method, double-beta decay: (0neutrino), Double beta decay, CUPID, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Engineering (miscellaneous), scintillation counter, Scintillation, molybdenum: nuclide, 010308 nuclear & particles physics, bibliography, crystal: geometry, Computational physics, efficiency, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE, Energy (signal processing)
Abstract

The CUPID Collaboration is designing a tonne-scale, background-free detector to search for double beta decay with sufficient sensitivity to fully explore the parameter space corresponding to the inverted neutrino mass hierarchy scenario. One of the CUPID demonstrators, CUPID-Mo, has proved the potential of enriched Li$$_{2}$$ 2 $$^{100}$$ 100 MoO$$_4$$ 4 crystals as suitable detectors for neutrinoless double beta decay search. In this work, we characterised cubic crystals that, compared to the cylindrical crystals used by CUPID-Mo, are more appealing for the construction of tightly packed arrays. We measured an average energy resolution of ($$6.7\pm 0.6$$ 6.7 ± 0.6 ) keV FWHM in the region of interest, approaching the CUPID target of 5 keV FWHM. We assessed the identification of $$\alpha $$ α particles with and without a reflecting foil that enhances the scintillation light collection efficiency, proving that the baseline design of CUPID already ensures a complete suppression of this $$\alpha $$ α -induced background contribution. We also used the collected data to validate a Monte Carlo simulation modelling the light collection efficiency, which will enable further optimisations of the detector.

Published
2021
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11. Novel technique for the study of pileup events in cryogenic bolometers

Author

Valentyn Novosad, Andrea Giachero, R. Nipoti, Jie Zhang, H. Z. Huang, V. G. Yefremenko, G. Keppel, D. Mayer, C. Nones, A. Puiu, S. Nisi, A. Armatol, K. Wilson, I. Colantoni, A. Barresi, P. Loaiza, C. Oriol, G. Pessina, V. Sanglard, L. Imbert, M. Faverzani, M. Beretta, S. Copello, C. Pagliarone, F.A. Danevich, A. Branca, Jonathan Ouellet, T. O'Donnell, Paolo Carniti, Massimiliano Clemenza, G. Bari, S. Di Domizio, Kai Vetter, C. Rosenfeld, D. L. Helis, Monica Sisti, Federico Ferri, H. Khalife, V. Boldrini, P. Gorla, P. Pari, F. Ferroni, Tomas Polakovic, B. Schmidt, Stefano Dell'Oro, A. Charrier, J. Billard, C. Tomei, S. H. Fu, N. Casali, Laura Cardani, G. Wang, Jie Yang, B. K. Fujikawa, R. J. Creswick, Davide Chiesa, P. Gras, M. Chapellier, C. Pira, Joseph A. Formaggio, L. Pagnanini, P. T. Surukuchi, C. Brofferio, L. Wang, Massimiliano Nastasi, Stefano Pozzi, E. Figueroa-Feliciano, Haiping Peng, V. Shlegel, V. Sharma, E. V. Hansen, A. S. Barabash, B. Paul, M. Gros, Evelyn Ferri, Oliviero Cremonesi, S. Zucchelli, James Nikkel, Ezio Previtali, J. Gascon, R. Mariam, C. C. Chang, L. Ma, Yu. G. Kolomensky, Luigi Cappelli, L. Taffarello, B. Welliver, A. Giuliani, M. Madhukuttan, Matias Velázquez, C. Augier, S. Marnieros, V. Yumatov, Goran Karapetrov, G. Fantini, A. Cazes, Danielle Speller, James R. Wilson, A. Cruciani, X. F. Navick, S. Pirro, V. V. Kobychev, J. Camilleri, A. Franceschi, Changbo Fu, C. Rusconi, J. A. Scarpaci, A. Juillard, L. Bergé, R. Rizzoli, M. M. Zarytskyy, V. Dompè, G. D'Imperio, Irene Nutini, A. D'Addabbo, P. de Marcillac, M. De Jesus, O. G. Polischuk, F. Bellini, A. Ressa, D. Baudin, M. Xue, M. Pavan, Lindley Winslow, A. Drobizhev, I. Dafinei, S. L. Wagaarachchi, F. Collamati, V. Pettinacci, Simone Capelli, E. Olivieri, S. I. Konovalov, Eric B. Norman, L. Pattavina, M. I. Martínez, T. Napolitano, L. Marini, V.I. Tretyak, D. Misiak, D. V. Poda, J. Johnston, M. Biassoni, E. Armengaud, Vasundhara Singh, S. Milana, O. Azzolini, L. Gironi, F. T. Avignone, Whitney Armstrong, Y. Liu, C. Bucci, T. D. Gutierrez, R. G. Huang, F. Mancarella, L. Yan, S. Pagan, B. Mauri, M. de Combarieu, E. Celi, C. Gotti, A. S. Zolotarova, Ke Han, Reina H. Maruyama, A. Tsymbaliuk, Y. Mei, K. M. Heeger, O. Tellier, L. Dumoulin, Giovanni Benato, Armatol A., Armengaud E., Armstrong W., Augier C., Avignone F.T., Azzolini O., Barabash A., Bari G., Barresi A., Baudin D., Bellini F., Benato G., Beretta M., Berge L., Biassoni M., Billard J., Boldrini V., Branca A., Brofferio C., Bucci C., Camilleri J., Capelli S., Cappelli L., Cardani L., Carniti P., Casali N., Cazes A., Celi E., Chang C., Chapellier M., Charrier A., Chiesa D., Clemenza M., Colantoni I., Collamati F., Copello S., Cremonesi O., Creswick R.J., Cruciani A., D'Addabbo A., D'Imperio G., Dafinei I., Danevich F.A., De Combarieu M., De Jesus M., De Marcillac P., Dell'Oro S., Di Domizio S., Dompe V., Drobizhev A., Dumoulin L., Fantini G., Faverzani M., Ferri E., Ferri F., Ferroni F., Figueroa-Feliciano E., Formaggio J., Franceschi A., Fu C., Fu S., Fujikawa B.K., Gascon J., Giachero A., Gironi L., Giuliani A., Gorla P., Gotti C., Gras P., Gros M., Gutierrez T.D., Han K., Hansen E.V., Heeger K.M., Helis D.L., Huang H.Z., Huang R.G., Imbert L., Johnston J., Juillard A., Karapetrov G., Keppel G., Khalife H., Kobychev V.V., Kolomensky Y.G., Konovalov S., Liu Y., Loaiza P., Ma L., Madhukuttan M., Mancarella F., Mariam R., Marini L., Marnieros S., Martinez M., Maruyama R.H., Mauri B., Mayer D., Mei Y., Milana S., Misiak D., Napolitano T., Nastasi M., Navick X.F., Nikkel J., Nipoti R., Nisi S., Nones C., Norman E.B., Novosad V., Nutini I., O'Donnell T., Olivieri E., Oriol C., Ouellet J.L., Pagan S., Pagliarone C., Pagnanini L., Pari P., Pattavina L., Paul B., Pavan M., Peng H., Pessina G., Pettinacci V., Pira C., Pirro S., Poda D.V., Polakovic T., Polischuk O.G., Pozzi S., Previtali E., Puiu A., Ressa A., Rizzoli R., Rosenfeld C., Rusconi C., Sanglard V., Scarpaci J., Schmidt B., Sharma V., Shlegel V., Singh V., Sisti M., Speller D., Surukuchi P.T., Taffarello L., Tellier O., Tomei C., Tretyak V.I., Tsymbaliuk A., Velazquez M., Vetter K.J., Wagaarachchi S.L., Wang G., Wang L., Welliver B., Wilson J., Wilson K., Winslow L.A., Xue M., Yan L., Yang J., Yefremenko V., Yumatov V., Zarytskyy M.M., Zhang J., Zolotarova A., Zucchelli S., 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 de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-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), Institut Rayonnement Matière de Saclay (IRAMIS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), CUPID, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-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 Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Armatol, A, Armengaud, E, Armstrong, W, Augier, C, Avignone, F, Azzolini, O, Barabash, A, Bari, G, Barresi, A, Baudin, D, Bellini, F, Benato, G, Beretta, M, Berge, L, Biassoni, M, Billard, J, Boldrini, V, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cazes, A, Celi, E, Chang, C, Chapellier, M, Charrier, A, Chiesa, D, Clemenza, M, Colantoni, I, Collamati, F, Copello, S, Cremonesi, O, Creswick, R, Cruciani, A, D'Addabbo, A, D'Imperio, G, Dafinei, I, Danevich, F, De Combarieu, M, De Jesus, M, De Marcillac, P, Dell'Oro, S, Di Domizio, S, Dompe, V, Drobizhev, A, Dumoulin, L, Fantini, G, Faverzani, M, Ferri, E, Ferri, F, Ferroni, F, Figueroa-Feliciano, E, Formaggio, J, Franceschi, A, Fu, C, Fu, S, Fujikawa, B, Gascon, J, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gras, P, Gros, M, Gutierrez, T, Han, K, Hansen, E, Heeger, K, Helis, D, Huang, H, Huang, R, Imbert, L, Johnston, J, Juillard, A, Karapetrov, G, Keppel, G, Khalife, H, Kobychev, V, Kolomensky, Y, Konovalov, S, Liu, Y, Loaiza, P, Ma, L, Madhukuttan, M, Mancarella, F, Mariam, R, Marini, L, Marnieros, S, Martinez, M, Maruyama, R, Mauri, B, Mayer, D, Mei, Y, Milana, S, Misiak, D, Napolitano, T, Nastasi, M, Navick, X, Nikkel, J, Nipoti, R, Nisi, S, Nones, C, Norman, E, Novosad, V, Nutini, I, O'Donnell, T, Olivieri, E, Oriol, C, Ouellet, J, Pagan, S, Pagliarone, C, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Poda, D, Polakovic, T, Polischuk, O, Pozzi, S, Previtali, E, Puiu, A, Ressa, A, Rizzoli, R, Rosenfeld, C, Rusconi, C, Sanglard, V, Scarpaci, J, Schmidt, B, Sharma, V, Shlegel, V, Singh, V, Sisti, M, Speller, D, Surukuchi, P, Taffarello, L, Tellier, O, Tomei, C, Tretyak, V, Tsymbaliuk, A, Velazquez, M, Vetter, K, Wagaarachchi, S, Wang, G, Wang, L, Welliver, B, Wilson, J, Wilson, K, Winslow, L, Xue, M, Yan, L, Yang, J, Yefremenko, V, Yumatov, V, Zarytskyy, M, Zhang, J, Zolotarova, A, and Zucchelli, S

Subjects
data analysis method, double beta decay, nuclear tests of fundamental interactions, Particle decays, Physics - Instrumentation and Detectors, double beta decay, FOS: Physical sciences, Cryogenics, MESH: numerical calculation, 01 natural sciences, law.invention, benchmark, bolometer, double-beta decay: (0neutrino), law, Double beta decay, 0103 physical sciences, Electronic engineering, MESH: benchmark, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], numerical calculations, 010306 general physics, time resolution, nuclear tests of fundamental interactions, Physics, Signal generator, 010308 nuclear & particles physics, Bolometer, Detector, Time resolution, MESH: data analysis method, Instrumentation and Detectors (physics.ins-det), MESH: bolometer, Gran Sasso, Neutrinoless Double Beta decay, Neutrino Physics, MESH: cryogenics, efficiency, cryogenics, pile-up, Rise time, MESH: Gran Sasso, Benchmark (computing), MESH: double-beta decay: (0neutrino), Neutrinoless double-beta decay, MESH: efficiency, Particle decays, MESH: time resolution, MESH: pile-up
Abstract

International audience; Precise characterization of detector time resolution is of crucial importance for next-generation cryogenic-bolometer experiments searching for neutrinoless double-beta decay, such as CUPID, in order to reject background due to pile-up of two-neutrino double-beta decay events. In this paper, we describe a technique developed to study the pile-up rejection capability of cryogenic bolometers. Our approach, which consists of producing controlled pile-up events with a programmable waveform generator, has the benefit that we can reliably and reproducibly control the time separation and relative energy of the individual components of the generated pile-up events. The resulting data allow us to optimize and benchmark analysis strategies to discriminate between individual and pile-up pulses. We describe a test of this technique performed with a small array of detectors at the Laboratori Nazionali del Gran Sasso, in Italy; we obtain a 90% rejection efficiency against pulser-generated pile-up events with rise time of ~15 ms down to time separation between the individual events of 2 ms.

Published
2021
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12. A CUPID Li$_2$ $^{100} $MoO$_4$ scintillating bolometer tested in the CROSS underground facility

Author

A. S. Barabash, V. Yumatov, G. D'Imperio, M. De Deo, Ezio Previtali, J. M. Calvo-Mozota, Evelyn Ferri, B. Welliver, L. Gironi, L. Marini, E. Guerard, D. Misiak, D. V. Poda, J. Johnston, V. Dompè, F. T. Avignone, Whitney Armstrong, A. Charrier, O. Tellier, I. Colantoni, A. D'Addabbo, S. Di Domizio, P. Pari, Tomas Polakovic, Massimiliano Clemenza, V. Shlegel, R. Mariam, Yu. G. Kolomensky, Luigi Cappelli, Monica Sisti, M. Pavan, S. Zucchelli, Laura Cardani, P. de Marcillac, C. Augier, Goran Karapetrov, X.-F. Navick, B. K. Fujikawa, Stefano Pozzi, L. Pagnanini, P. T. Surukuchi, O. Azzolini, G. Fantini, Federico Ferri, B. Schmidt, C. Oriol, C. Pagliarone, E. Celi, T. O'Donnell, S. H. Fu, S. Dell'Oro, Giovanni Benato, M. Xue, Yuting Liu, Ch. Bourgeois, C. C. Chang, Stefano Nisi, James R. Wilson, S. Milana, G. Olivier, A. Cruciani, A. Franceschi, Changbo Fu, I. Dafinei, M. Chapellier, C. Gotti, S. Copello, C. Brofferio, S. Pirro, Jie Yang, V. Sharma, D. L. Helis, A. Barresi, J. Camilleri, R. Rizzoli, L. Ma, L. Dumoulin, Davide Chiesa, A. S. Zolotarova, Paolo Carniti, V. Pettinacci, A. Juillard, A. Candela, M. Gros, M. Madhukuttan, I. C. Bandac, M. De Jesus, E. V. Hansen, O. G. Polischuk, A. Drobizhev, Ke Han, F. Bellini, A. Ressa, Reina H. Maruyama, V.I. Tretyak, F.A. Danevich, J. A. Scarpaci, C. Bucci, T. D. Gutierrez, M. Faverzani, Matias Velázquez, P. Loaiza, Kai Vetter, Massimiliano Nastasi, S. I. Konovalov, L. Taffarello, D. Reynet, V. V. Kobychev, L. Bergé, J. Gascon, V. Sanglard, L. Yan, L. Imbert, Virendra Singh, M. M. Zarytskyy, Valentyn Novosad, C. Rosenfeld, Danielle Speller, Andrea Giachero, N. Casali, A. Branca, L. Pattavina, A. Ianni, E. Olivieri, R. J. Creswick, Eric B. Norman, V. Boldrini, P. Gras, K. Wilson, S. Pagan, J. Billard, S. Marnieros, Li Wang, T. Napolitano, R. Nipoti, A. Cazes, P. Gorla, F. Ferroni, E. Figueroa-Feliciano, C. Tomei, C. Pira, Haiping Peng, Oliviero Cremonesi, M. Biassoni, D. Mayer, Jonathan Ouellet, G. Bari, Lindley Winslow, M. de Combarieu, Joseph A. Formaggio, A. Tsymbaliuk, Y. Mei, A. Armatol, K. M. Heeger, R. G. Huang, F. Mancarella, B. Paul, M. I. Martínez, G. Pessina, Jie Zhang, C. Nones, A. Puiu, A. Giuliani, B. Mauri, James Nikkel, Irene Nutini, G. Wang, H. Z. Huang, V. G. Yefremenko, G. Keppel, H. Khalife, E. Armengaud, D. Baudin, M. Beretta, S. L. Wagaarachchi, F. Collamati, Simone Capelli, 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 de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-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), Institut Rayonnement Matière de Saclay (IRAMIS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), CUPID, CROSS, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Armatol A., Armengaud E., Armstrong W., Augier C., Iii F.T.A., Azzolini O., Bandac I.C., Barabash A.S., Bari G., Barresi A., Baudin D., Bellini F., Benato G., Beretta M., Berge L., Bourgeois C., Biassoni M., Billard J., Boldrini V., Branca A., Brofferio C., Bucci C., Calvo-Mozota J.M., Camilleri J., Candela A., Capelli S., Cappelli L., Cardani L., Carniti P., Casali N., Cazes A., Celi E., Chang C., Chapellier M., Charrier A., Chiesa D., Clemenza M., Colantoni I., Collamati F., Copello S., Cremonesi O., Creswick R.J., Cruciani A., D'Addabbo A., D'Imperio G., Dafinei I., Danevich F.A., De Combarieu M., Deo M.D., Jesus M.D., De Marcillac P., Dell'Oro S., Domizio S.D., Dompe V., Drobizhev A., Dumoulin L., Fantini G., Faverzani M., Ferri E., Ferri F., Ferroni F., Figueroa-Feliciano E., Formaggio J., Franceschi A., Fu C., Fu S., Fujikawa B.K., Gascon J., Giachero A., Gironi L., Giuliani A., Gorla P., Gotti C., Gras P., Gros M., Guerard E., Gutierrez T.D., Han K., Hansen E.V., Heeger K.M., Helis D.L., Huang H.Z., Huang R.G., Ianni A., Imbert L., Johnston J., Juillard A., Karapetrov G., Keppel G., Khalife H., Kobychev V.V., Kolomensky Y.G., Konovalov S.I., Liu Y., Loaiza P., Ma L., Madhukuttan M., Mancarella F., Mariam R., Marini L., Marnieros S., Martinez M., Maruyama R.H., Mauri B., Mayer D., Mei Y., Milana S., Misiak D., Napolitano T., Nastasi M., Navick X.-F., Nikkel J., Nipoti R., Nisi S., Nones C., Norman E.B., Novosad V., Nutini I., O'Donnell T., Olivier G., Olivieri E., Oriol C., Ouellet J.L., Pagan S., Pagliarone C., Pagnanini L., Pari P., Pattavina L., Paul B., Pavan M., Peng H., Pessina G., Pettinacci V., Pira C., Pirro S., Poda D.V., Polakovic T., Polischuk O.G., Pozzi S., Previtali E., Puiu A., Ressa A., Reynet D., Rizzoli R., Rosenfeld C., Sanglard V., Scarpaci J.A., Schmidt B., Sharma V., Shlegel V.N., Singh V., Sisti M., Speller D., Surukuchi P.T., Taffarello L., Tellier O., Tomei C., Tretyak V.I., Tsymbaliuk A., Velazquez M., Vetter K.J., Wagaarachchi S.L., Wang G., Wang L., Welliver B., Wilson J., Wilson K., Winslow L.A., Xue M., Yan L., Yang J., Yefremenko V., Yumatov V.I., Zarytskyy M.M., Zhang J., Zolotarova A.S., Zucchelli S., Armatol, A, Armengaud, E, Armstrong, W, Augier, C, Avignone F. T., I, Azzolini, O, Bandac, I, Barabash, A, Bari, G, Barresi, A, Baudin, D, Bellini, F, Benato, G, Beretta, M, Berge, L, Bourgeois, C, Biassoni, M, Billard, J, Boldrini, V, Branca, A, Brofferio, C, Bucci, C, Calvo-Mozota, J, Camilleri, J, Candela, A, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cazes, A, Celi, E, Chang, C, Chapellier, M, Charrier, A, Chiesa, D, Clemenza, M, Colantoni, I, Collamati, F, Copello, S, Cremonesi, O, Creswick, R, Cruciani, A, D'Addabbo, A, D'Imperio, G, Dafinei, I, Danevich, F, De Combarieu, M, Deo, M, Jesus, M, De Marcillac, P, Dell'Oro, S, Domizio, S, Dompe, V, Drobizhev, A, Dumoulin, L, Fantini, G, Faverzani, M, Ferri, E, Ferri, F, Ferroni, F, Figueroa-Feliciano, E, Formaggio, J, Franceschi, A, Fu, C, Fu, S, Fujikawa, B, Gascon, J, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gras, P, Gros, M, Guerard, E, Gutierrez, T, Han, K, Hansen, E, Heeger, K, Helis, D, Huang, H, Huang, R, Ianni, A, Imbert, L, Johnston, J, Juillard, A, Karapetrov, G, Keppel, G, Khalife, H, Kobychev, V, Kolomensky, Y, Konovalov, S, Liu, Y, Loaiza, P, Ma, L, Madhukuttan, M, Mancarella, F, Mariam, R, Marini, L, Marnieros, S, Martinez, M, Maruyama, R, Mauri, B, Mayer, D, Mei, Y, Milana, S, Misiak, D, Napolitano, T, Nastasi, M, Navick, X, Nikkel, J, Nipoti, R, Nisi, S, Nones, C, Norman, E, Novosad, V, Nutini, I, O'Donnell, T, Olivier, G, Olivieri, E, Oriol, C, Ouellet, J, Pagan, S, Pagliarone, C, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Poda, D, Polakovic, T, Polischuk, O, Pozzi, S, Previtali, E, Puiu, A, Ressa, A, Reynet, D, Rizzoli, R, Rosenfeld, C, Sanglard, V, Scarpaci, J, Schmidt, B, Sharma, V, Shlegel, V, Singh, V, Sisti, M, Speller, D, Surukuchi, P, Taffarello, L, Tellier, O, Tomei, C, Tretyak, V, Tsymbaliuk, A, Velazquez, M, Vetter, K, Wagaarachchi, S, Wang, G, Wang, L, Welliver, B, Wilson, J, Wilson, K, Winslow, L, Xue, M, Yan, L, Yang, J, Yefremenko, V, Yumatov, V, Zarytskyy, M, Zhang, J, Zolotarova, A, and Zucchelli, S

Subjects
gas and liquid scintillators), Physics - Instrumentation and Detectors, Accurate estimation, Physics::Instrumentation and Detectors, Bolometer, Analytical chemistry, Double-beta decay, FOS: Physical sciences, Cryogenic detector, Radiopurity, 01 natural sciences, 030218 nuclear medicine & medical imaging, law.invention, Particle identification, Particle identification methods, 03 medical and health sciences, Particle identification method, 0302 clinical medicine, CUORE, law, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detector array, Instrumentation, Mathematical Physics, Event triggered, Physics, Lithium molybdate, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators), Double-beta decay detectors, scintillation and light emission processes (solid, Double-beta decay detector, Cryogenic detectors, Scintillators, Crystal scintillator, Energy (signal processing)
Abstract

A scintillating bolometer based on a large cubic Li$_{2}$$^{100}$MoO$_4$ crystal (45 mm side) and a Ge wafer (scintillation detector) has been operated in the CROSS cryogenic facility at the Canfranc underground laboratory in Spain. The dual-readout detector is a prototype of the technology that will be used in the next-generation $0\nu2\beta$ experiment CUPID. The measurements were performed at 18 and 12 mK temperature in a pulse tube dilution refrigerator. This setup utilizes the same technology as the CUORE cryostat that will host CUPID and so represents an accurate estimation of the expected performance. The Li$_{2}$$^{100}$MoO$_4$ bolometer shows a high energy resolution of 6 keV FWHM at the 2615 keV $\gamma$ line. The detection of scintillation light for each event triggered by the Li$_{2}$$^{100}$MoO$_4$ bolometer allowed for a full separation ($\sim$8$\sigma$) between $\gamma$($\beta$) and $\alpha$ events above 2 MeV. The Li$_{2}$$^{100}$MoO$_4$ crystal also shows a high internal radiopurity with $^{228}$Th and $^{226}$Ra activities of less than 3 and 8 $\mu$Bq/kg, respectively. Taking also into account the advantage of a more compact and massive detector array, which can be made of cubic-shaped crystals (compared to the cylindrical ones), this test demonstrates the great potential of cubic Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers for high-sensitivity searches for the $^{100}$Mo $0\nu2\beta$ decay in CROSS and CUPID projects., Comment: 19 pages, 7 figures, 1 table

Published
2021
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13. Pulse Shape Discrimination in CUPID-Mo using Principal Component Analysis

Author

L. Pattavina, F.A. Danevich, Vasundhara Singh, B. Schmidt, L. Marini, A. S. Barabash, Ezio Previtali, B. Welliver, K. Schäffner, P. de Marcillac, J. Johnston, V.I. Umatov, Jonathan Ouellet, Ph. Camus, D. Misiak, E. Yakushev, K. Eitel, H. Khalife, S. V. Rozov, C. Rusconi, P. Pari, Laura Cardani, S. Pirro, B. K. Fujikawa, V.D. Grigorieva, V.V. Kobychev, F. Charlieux, B. Siebenborn, I. Dafinei, V. I. Tretyak, M. De Jesus, A. Juillard, Yu. A. Borovlev, Matias Velázquez, Federico Ferri, Alexandre Benoit, D.V. Poda, M. Beretta, L. Vagneron, P. Loaiza, M. de Combarieu, J. A. Scarpaci, L. Bergé, E. P. Makarov, R. Mariam, V.N. Shlegel, Yu. G. Kolomensky, E. Armengaud, Th. Redon, M. Kleifges, C. Tomei, J. Billard, D. L. Helis, C. Augier, O. G. Polischuk, M. M. Zarytskyy, E. Guerard, L. Ma, L. Dumoulin, A. S. Zolotarova, Marc Weber, F. Bellini, B. Paul, T. Dixon, Lindley Winslow, H. Z. Huang, A. Giuliani, M. Pavan, R. Huang, X-F. Navick, Giovanni Benato, L. Pagnanini, E. Olivieri, Eric B. Norman, G. Pessina, C. Nones, V. B. Brudanin, A. Cazes, V. Sanglard, L. Gironi, M. Xue, J. Gascon, N. Casali, S. Marnieros, Haiping Peng, Y. Shen, S. I. Konovalov, M. Gros, Ch. Bourgeois, M. Chapellier, 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 de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), 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), Institut Rayonnement Matière de Saclay (IRAMIS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), CUPID, Space Sciences Laboratory, University of California, Berkeley, CA94720-7450, USA (SSL), Space Sciences Laboratory, University of California, Berkeley, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Cryogénie (NEEL - Cryo)

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, principal component analysis, shape analysis, nucl-ex, 01 natural sciences, Signal, 030218 nuclear medicine & medical imaging, law.invention, helium: background, physics.data-an, 0302 clinical medicine, Engineering, law, Nuclear Experiment (nucl-ex), Instrumentation, Nuclear Experiment, physics.ins-det, Mathematical Physics, ComputingMilieux_MISCELLANEOUS, background: suppression, Analysis and statistical methods, calorimeters, data processing methods, double-beta decay detectors, Physics, Detector, Instrumentation and Detectors (physics.ins-det), Nuclear & Particles Physics, molybdenum: oxygen, lithium, Principal component analysis, Data processing methods, Physical Sciences, [PHYS.PHYS.PHYS-DATA-AN]Physics [physics]/Physics [physics]/Data Analysis, Statistics and Probability [physics.data-an], Shape analysis (digital geometry), data analysis method, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 03 medical and health sciences, Calorimeters, Optics, double-beta decay: (0neutrino), bolometer, 0103 physical sciences, Calibration, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], molybdenum: nuclide, 010308 nuclear & particles physics, business.industry, Bolometer, Filter (signal processing), Double-beta decay detectors, calibration, Pulse (physics), pile-up, Physics - Data Analysis, Statistics and Probability, scintillation counter: crystal, High Energy Physics::Experiment, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Data Analysis, Statistics and Probability (physics.data-an)
Abstract

CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay (0νββ) of 100Mo. It uses 20 scintillating 100Mo-enriched Li2MoO4 bolometers instrumented with Ge light detectors to perform active suppression of α backgrounds, drastically reducing the expected background in the 0νββ signal region. As a result, pileup events and small detector instabilities that mimic normal signals become non-negligible potential backgrounds. These types of events can in principle be eliminated based on their signal shapes, which are different from those of regular bolometric pulses. We show that a purely data-driven principal component analysis based approach is able to filter out these anomalous events, without the aid of detector response simulations.

Published
2021
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14. Searching for New Physics in two-neutrino double beta decay with CUPID

Author

A Armatol, E Armengaud, W Armstrong, C Augier, F T Avignone, O Azzolini, A Barabash, G Bari, A Barresi, D Baudin, F Bellini, G Benato, M Beretta, L Bergé, M Biassoni, J Billard, V Boldrini, A Branca, C Brofferio, C Bucci, J Camilleri, S Capelli, L Cappelli, L Cardani, P Carniti, N Casali, A Cazes, E Celi, C Chang, M Chapellier, A Charrier, D Chiesa, M Clemenza, I Colantoni, F Collamati, S Copello, O Cremonesi, R J Creswick, A Cruciani, A D’ Addabbo, G D’ Imperio, I Dafinei, F A Danevich, M de Combarieu, M De Jesus, P de Marcillac, S Dell’Oro, S Di Domizio, V Dompè, A Drobizhev, L Dumoulin, G Fantini, M Faverzani, E Ferri, F Ferri, F Ferroni, E Figueroa-Feliciano, J Formaggio, A Franceschi, C Fu, S Fu, B K Fujikawa, J Gascon, S Ghislandi, A Giachero, L Gironi, A Giuliani, P Gorla, C Gotti, P Gras, M Gros, T D Gutierrez, K Han, E V Hansen, K M Heeger, D L Helis, H Z Huang, R G Huang, L Imbert, J Johnston, A Juillard, G Karapetrov, G Keppel, H Khalife, V V Kobychev, J Kotila, Yu G Kolomensky, S Konovalov, Y Liu, P Loaiza, L Ma, M Madhukuttan, F Mancarella, R Mariam, L Marini, S Marnieros, M Martinez, R H Maruyama, B Mauri, D Mayer, Y Mei, S Milana, D Misiak, T Napolitano, M Nastasi, X F Navick, J Nikkel, R Nipoti, S Nisi, C Nones, E B Norman, V Novosad, I Nutini, T O’Donnell, E Olivieri, C Oriol, J L Ouellet, S Pagan, C Pagliarone, L Pagnanini, P Pari, L Pattavina, B Paul, M Pavan, H Peng, G Pessina, V Pettinacci, C Pira, S Pirro, D V Poda, T Polakovic, O G Polischuk, S Pozzi, E Previtali, A Puiu, S Quitadamo, A Ressa, R Rizzoli, C Rosenfeld, C Rusconi, V Sanglard, J Scarpaci, B Schmidt, V Sharma, V Shlegel, V Singh, M Sisti, D Speller, P T Surukuchi, L Taffarello, O Tellier, C Tomei, V I Tretyak, A Tsymbaliuk, M Velazquez, K J Vetter, S L Wagaarachchi, G Wang, L Wang, B Welliver, J Wilson, K Wilson, L A Winslow, M Xue, L Yan, J Yang, V Yefremenko, V Yumatov, M M Zarytskyy, J Zhang, A Zolotarova, S Zucchelli, 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 de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), Institut Rayonnement Matière de Saclay (IRAMIS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
CUPID, Neutrinoless Double Beta Decay, LNGS, Particle Physics, Neutrino, Majorana Neutrino, History, LNGS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], hiukkasfysiikka, Neutrinoless Double Beta Decay, Education, crystal, CUPID, Neutrino, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], double-beta decay: (2neutrino), Particle Physics, scintillation counter, symmetry: violation, background, new physics: search for, Majorana Neutrino, neutriinot, sensitivity, violation: Lorentz, Majoron, Computer Science Applications, calorimeter: cryogenics, electron: energy spectrum, symmetry: Lorentz, ydinfysiikka
Abstract

In the past few years, attention has been drawn to the fact that a precision analysis of two-neutrino double beta decay (2υββ) allows the study of interesting physics cases like the emission of Majoron bosons and possible Lorentz symmetry violation. These processes modify the summed-energy distribution of the two electrons emitted in 2υββ. CUPID is a next-generation experiment aiming to exploit 100Mo-enriched scintillating Li2MoO4 crystals, operating as cryogenic calorimeters. Given the relatively fast half-life of 100Mo 2υββ and the large exposure that can be reached by CUPID, we expect to measure with very high precision the 100Mo 2υββ spectrum shape, reaching great sensitivities in the search for distortions induced by the physics beyond the Standard Model. In this contribution, we present the CUPID exclusion sensitivity for such New Physics processes, as well as the preliminary projected background of CUPID.

Published
2021
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15. Precise measurement of $2\nu\beta\beta$ decay of $^{100}$Mo with the CUPID-Mo detection technology

Author

Matthias Kleifges, S. Marnieros, A. S. Barabash, J. Kotila, Ezio Previtali, E. Guerard, B. Welliver, Lindley Winslow, P. de Marcillac, Claudia Tomei, A. S. Zolotarova, L. Marini, R. G. Huang, O. G. Polischuk, D. Misiak, Th. Redon, J. Billard, L. Cardani, Stefano Pirro, Federico Ferri, Yao Shen, J. Johnston, M. Pavan, P. Camus, V. Novati, B. K. Fujikawa, M. de Combarieu, L. Pattavina, Alain Benoit, B. Siebenborn, Yu. A. Borovlev, F. Charlieux, H. Z. Huang, S. V. Rozov, B. Paul, E. Armengaud, E. P. Makarov, L. Ma, Vasundhara Singh, F.A. Danevich, M. Briere, P. Loaiza, B. Schmidt, E. Elkhoury, M. De Jesus, A. Giuliani, V. I. Umatov, D. L. Helis, S. I. Konovalov, C. Rusconi, M. Gros, C. Nones, L. Dumoulin, V.N. Shlegel, K. Eitel, H. Khalife, Marc Weber, X. F. Navick, Francesca Bellini, G. Pessina, A. Leder, D.V. Poda, V.I. Tretyak, M. Beretta, P. Pari, L. Pagnanini, Yu G. Kolomensky, Ioan Dafinei, Jonathan Ouellet, C. Augier, Giovanni Benato, K. Schäffner, V. Sanglard, A. Juillard, Matias Velázquez, V. V. Kobychev, L. Vagneron, L. Bergé, E. Yakushev, L. Gironi, E. Olivieri, J. Gascon, A. Cazes, Ch. Bourgeois, V.B. Brudanin, M. Chapellier, N. Casali, M. Xue, V. D. Grigorieva, Haiping Peng, 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 de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Laboratoire de l'Accélérateur Linéaire (LAL), Institut Rayonnement Matière de Saclay (IRAMIS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Armengaud, E, Augier, C, Barabash, A, Bellini, F, Benato, G, Benoit, A, Beretta, M, Berge, L, Billard, J, Borovlev, Y, Bourgeois, C, Briere, M, Brudanin, V, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, de Combarieu, M, Dafinei, I, Danevich, F, De Jesus, M, Dumoulin, L, Eitel, K, Elkhoury, E, Ferri, F, Fujikawa, B, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, V, Gros, M, Guerard, E, Helis, D, Huang, H, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, V, Kolomensky, Y, Konovalov, S, Leder, A, Kotila, J, Loaiza, P, Ma, L, Makarov, E, de Marcillac, P, Marini, L, Marnieros, S, Misiak, D, Navick, X, Nones, C, Novati, V, Olivieri, E, Ouellet, J, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, D, Polischuk, O, Previtali, E, Redon, T, Rozov, S, Rusconi, C, Sanglard, V, Schaffner, K, Schmidt, B, Shen, Y, Shlegel, V, Siebenborn, B, Singh, V, Tomei, C, Tretyak, V, Umatov, V, Vagneron, L, Velazquez, M, Weber, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zolotarova, A, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Cryogénie (NEEL - Cryo)

Subjects
Lithium molybdate, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Analytical chemistry, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nucl-ex, 01 natural sciences, Atomic, chemistry.chemical_compound, Particle and Plasma Physics, two-neutrino double-beta decay, scintillating bolometers, 0103 physical sciences, ddc:530, Beta (velocity), Nuclear, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), physics.ins-det, S076H2N, Physics, Quantum Physics, 010308 nuclear & particles physics, Molecular, Beta decay, Nuclear & Particles Physics, 3. Good health, chemistry, double beta decays, bolometers, Underground laboratory, Ground state
Abstract

We report the measurement of the two-neutrino double-beta ($2\nu\beta\beta$) decay of $^{100}$Mo to the ground state of $^{100}$Ru using lithium molybdate (\crystal) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory. From a total exposure of $42.235$ kg$\times$d, the half-life of $^{100}$Mo is determined to be $T_{1/2}^{2\nu}=[7.12^{+0.18}_{-0.14}\,\mathrm{(stat.)}\pm0.10\,\mathrm{(syst.)}]\times10^{18}$ years. This is the most accurate determination of the $2\nu\beta\beta$ half-life of $^{100}$Mo to date. We also confirm, with the statistical significance of $>3\sigma$, that the single-state dominance model of the $2\nu\beta\beta$ decay of $^{100}$Mo is favored over the high-state dominance model., Comment: 11 pages, 6 figures, 4 tables

Published
2020
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16. First data from the CUPID-Mo neutrinoless double beta decay experiment

Author

K. Schäffner, N. Casali, Matthias Kleifges, M. De Jesus, S. Marnieros, S. V. Rozov, Alexandre Benoit, V. Singh, J. Gascon, Haiping Peng, P. Camus, Federico Ferri, R. G. Huang, C. Rusconi, M. de Combarieu, C. Augier, M. Gros, A. Cazes, P. Pari, L. Pagnanini, Yu G. Kolomensky, L. Dumoulin, A. S. Barabash, E. Olivieri, V. Sanglard, V. Novati, Marc Weber, A. Juillard, B. Paul, Matias Velázquez, V. V. Kobychev, L. Vagneron, Ezio Previtali, L. Bergé, O. G. Polischuk, M. Xue, B. K. Fujikawa, X.-F. Navick, K. Eitel, H. Khalife, V.N. Shlegel, B. Welliver, D. L. Helis, F. Charlieux, H. Z. Huang, D. Misiak, Ioan Dafinei, E. P. Makarov, V. D. Grigorieva, L. Cardani, Stefano Pirro, Giovanni Benato, E. Elkhoury, Francesca Bellini, P. de Marcillac, E. Yakushev, L. Gironi, Jonathan Ouellet, A. Giuliani, S. I. Konovalov, L. Pattavina, Ch. Bourgeois, V.B. Brudanin, M. Chapellier, M. Beretta, Lindley Winslow, Th. Redon, J. Billard, M. Pavan, L. Marini, Yao Shen, J. Johnston, A. Leder, Yu. A. Borovlev, E. Armengaud, E. Guerard, L. Ma, Claudia Tomei, F.A. Danevich, P. Loaiza, V. I. Umatov, S. Sorbino, A. S. Zolotarova, G. Pessina, B. Siebenborn, M. Briere, B. Schmidt, C. Nones, D.V. Poda, and V.I. Tretyak

Subjects
Physics, History, Particle physics, Scintillation, Physics - Instrumentation and Detectors, Light detection, Bolometer, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), High Energy Physics - Experiment, Computer Science Applications, Education, law.invention, High Energy Physics - Experiment (hep-ex), Full width at half maximum, CUORE, law, Double beta decay, Background suppression, ddc:530, Sensitivity (control systems), Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

The CUPID-Mo experiment is searching for neutrinoless double beta decay in $^{100}$Mo, evaluating the technology of cryogenic scintillating Li$_{2}^{100}$MoO$_4$ detectors for CUPID (CUORE Upgrade with Particle ID). CUPID-Mo detectors feature background suppression using a dual-readout scheme with Li$_{2}$MoO$_4$ crystals complemented by Ge bolometers for light detection. The detection of both heat and scintillation light signals allows the efficient discrimination of $\alpha$ from $\gamma$&$\beta$ events. In this proceedings, we discuss results from the first 2 months of data taking in spring 2019. In addition to an excellent bolometric performance of 6.7$\,$keV (FWHM) at 2615$\,$keV and an $\alpha$ separation of better than 99.9\% for all detectors, we report on bulk radiopurity for Th and U. Finally, we interpret the accumulated physics data in terms of a limit of $T_{1/2}^{0\nu}\,> 3\times10^{23}\,$yr for $^{100}$Mo and discuss the sensitivity of CUPID-Mo until the expected end of physics data taking in early 2020., Comment: Proceedings for TAUP 2019, submitted to IOP Journal of Physics: Conference Series

Published
2020
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17. Development of $$^{100}\hbox {Mo}$$ 100 Mo -containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search

Author

C. Augier, T. Bergmann, V. Sanglard, S. Di Domizio, M. Vignati, B. Paul, L. Hehn, X. F. Navick, J. W. Beeman, A. Giuliani, E. Queguiner, J. Billard, Andreas Fleischmann, Matthias Laubenstein, H. le Sueur, L. Cardani, L. Dumoulin, L. Devoyon, L. Pattavina, J. Gascon, A. S. Zolotarova, Stefano Pirro, V. Kozlov, L. Gastaldo, A. Cazes, T. Redon, Francesca Bellini, E. Yakushev, G. Piperno, O. Strazzer, Y. Penichot, I.M. Ivanov, S. Scorza, P. Pari, L. Pagnanini, V. D. Grigorieva, Noël Coron, A. Juillard, Matias Velázquez, F. Koskas, Claire A. Marrache-Kikuchi, P. Camus, V.N. Shlegel, K. Eitel, M. de Combarieu, S. V. Rozov, V. V. Kobychev, L. Vagneron, L. Bergé, Vl.I. Tretyak, Matias Rodrigues, R. S. Boiko, V. A. Kudryavtsev, E. Armengaud, F. Ferroni, A. Broniatowski, M. Pavan, Yong Jin, A. S. Barabash, N. Foerster, D. Tcherniakhovski, Alain Benoit, O. Plantevin, N.V. Ivannikova, Martin Loidl, P. de Marcillac, K. Schäffner, Matthias Kleifges, S. Marnieros, P. Magnier, C. Rusconi, M. Gros, C. Nones, D.V. Poda, D. M. Chernyak, B. Siebenborn, M. O. Nikolaichuk, Claudia Tomei, F.A. Danevich, Ya.V. Vasiliev, M. Mancuso, V. I. Umatov, S.I. Konovalov, Christian Enss, E. Olivieri, V. Humbert, S. Hervé, Marc Weber, N. Casali, V.B. Brudanin, M. Chapellier, L. Gironi, I. Dafinei, H. Kraus, G. Pessina, T.B. Bekker, E. P. Makarov, S. Nagorny, M. De Jesus, Silvia Capelli, V. Novati, and F. Charlieux

Subjects
Physics, Lithium molybdate, Recrystallization (geology), Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Bolometer, lcsh:Astrophysics, 01 natural sciences, law.invention, Nuclear physics, Full width at half maximum, chemistry.chemical_compound, chemistry, law, Double beta decay, 0103 physical sciences, lcsh:QB460-466, lcsh:QC770-798, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Sensitivity (control systems), Neutrino, 010306 general physics, Engineering (miscellaneous), Energy (signal processing)
Abstract

This paper reports on the development of a technology involving $$^{100}\hbox {Mo}$$ 100 Mo -enriched scintillating bolometers, compatible with the goals of CUPID, a proposed next-generation bolometric experiment to search for neutrinoless double-beta decay. Large mass ( $$\sim 1~\hbox {kg}$$ ∼ 1 kg ), high optical quality, radiopure $$^{100}\hbox {Mo}$$ 100 Mo -containing zinc and lithium molybdate crystals have been produced and used to develop high performance single detector modules based on 0.2–0.4 kg scintillating bolometers. In particular, the energy resolution of the lithium molybdate detectors near the Q-value of the double-beta transition of $$^{100}\hbox {Mo}$$ 100 Mo (3034 keV) is 4–6 keV FWHM. The rejection of the $$\alpha $$ α -induced dominant background above 2.6 MeV is better than $$8\sigma $$ 8 σ . Less than $$10~\upmu \hbox {Bq/kg}$$ 10 μ Bq/kg activity of $$^{232}\hbox {Th}\, (^{228}\hbox {Th})$$ 232 Th ( 228 Th ) and $$^{226}\hbox {Ra}$$ 226 Ra in the crystals is ensured by boule recrystallization. The potential of $$^{100}\hbox {Mo}$$ 100 Mo -enriched scintillating bolometers to perform high sensitivity double-beta decay searches has been demonstrated with only $$10~\hbox {kg}\times \hbox {d}$$ 10 kg × d exposure: the two neutrino double-beta decay half-life of $$^{100}\hbox {Mo}$$ 100 Mo has been measured with the up-to-date highest accuracy as $$T_{1/2}$$ T 1 / 2 = [6.90 ± 0.15(stat.) ± 0.37(syst.)] $$\times ~10^{18}~\hbox {years}$$ × 10 18 years . Both crystallization and detector technologies favor lithium molybdate, which has been selected for the ongoing construction of the CUPID-0/Mo demonstrator, containing several kg of $$^{100}\hbox {Mo}$$ 100 Mo .

Published
2017
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18. Neutrinoless Double-Beta Decay Searches with Enriched $^{116}\hbox {CdWO}_{{4}}$ Scintillating Bolometers

Author

V. Novati, D. V. Poda, Th. Redon, O.G. Polischuk, J. Billard, A. S. Barabash, J. Gascon, E. Olivieri, C. Nones, M. de Combarieu, S. Marnieros, M. Chapellier, P. de Marcillac, D.V. Kasperovych, A. Giuliani, D. L. Helis, A. S. Zolotarova, F.A. Danevich, L. Dumoulin, V. I. Tretyak, I. C. Bandac, V.V. Kobychev, 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 de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Institut Rayonnement Matière de Saclay (IRAMIS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
detector: technology, tungsten: oxygen, Physics::Instrumentation and Detectors, Scintillating bolometers, Scintillator, 01 natural sciences, 010305 fluids & plasmas, Nuclear physics, chemistry.chemical_compound, bolometer, double-beta decay: (0neutrino), Double beta decay, 0103 physical sciences, Cadmium tungstate, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], General Materials Science, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Physics, Scintillation, CdWO$_4$, background, Order (ring theory), Condensed Matter Physics, Atomic and Molecular Physics, and Optics, deep underground detector, Full width at half maximum, chemistry, cadmium: nuclide, scintillation counter: crystal, Production (computer science), Neutrinoless double-beta decay, energy resolution: high, Energy (signal processing), performance
Abstract

International audience; Cadmium-116 is one of the favorable candidates for neutrinoless double-beta decay ($0\nu \beta \beta $) searches from both theoretical and experimental points of view, in particular thanks to the high energy of the decay (2813.49 keV), the possibility of the industrial enrichment in $^{116}\mathrm{Cd}$ and its use in the well-established production of cadmium tungstate crystal scintillators. In this work, we present low-temperature tests of two $0.6\ \mathrm{kg} \ ^{116}\hbox {CdWO}_{{4}}$ crystals enriched in $^{116}\mathrm{Cd}$ to $82\%$ as scintillating bolometers. These detectors were operated underground, with one at the Laboratoire Souterrain de Modane (LSM) in France and the second at the Laboratorio Subterraneo de Canfranc (LSC) in Spain. The two crystals are coupled to bolometric Ge light detectors in order to register the scintillation light. The double readout of heat and scintillation enables reduction in the background in the region of interest by discriminating between different populations of particles. The main goal of these tests is the study of the crystals’ radiopurity and the detectors’ performance. The achieved results are extremely promising, in particular, the detectors demonstrate a high energy resolution (11–16 keV FWHM at 2615 keV) and a high-efficiency discrimination of the alpha background ($\sim 20 \sigma $). These results, achieved for the first time with large mass enriched $^{116}\hbox {CdWO}_{{4}}$ crystals, demonstrate prospects of the bolometric technology for high-sensitivity searches of $^{116}\mathrm{Cd}0\nu \beta \beta $ decay.

Published
2019
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19. The $0\nu2\beta$-decay CROSS experiment: preliminary results and prospects

Author

The CROSS collaboration, I. C. Bandac, A. S. Barabash, L. Bergé, M. Brière, C. Bourgeois, P. Carniti, M. Chapellier, M. de Combarieu, I. Dafinei, F. A. Danevich, N. Dosme, D. Doullet, L. Dumoulin, F. Ferri, A. Giuliani, C. Gotti, P. Gras, E. Guerard, A. Ianni, H. Khalife, S. I. Konovalov, E. Legay, P. Loaiza, P. de Marcillac, S. Marnieros, C. A. Marrache-Kikuchi, C. Nones, V. Novati, E. Olivieri, C. Oriol, G. Pessina, D. V. Poda, T. Redon, V. I. Tretyak, V. I. Umatov, M. M. Zarytsky, A. S. Zolotarova, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), 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), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), CROSS, Bandac, I, Barabash, A, Berge, L, Briere, M, Bourgeois, C, Carniti, P, Chapellier, M, de Combarieu, M, Dafinei, I, Danevich, F, Dosme, N, Doullet, D, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, P, Guerard, E, Ianni, A, Khalife, H, Konovalov, S, Legay, E, Loaiza, P, de Marcillac, P, Marnieros, S, Marrache-Kikuchi, C, Nones, C, Novati, V, Olivieri, E, Oriol, C, Pessina, G, Poda, D, Redon, T, Tretyak, V, Umatov, V, Zarytsky, M, and Zolotarova, A

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, background: induced, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, law.invention, Crystal, Nuclear physics, CUORE, phonon: detector, bolometer, double-beta decay: (0neutrino), Observatory, law, 0103 physical sciences, Dark Matter and Double Beta Decay (experiments), lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, lepton number: violation, Nuclear Experiment, Physics, 010308 nuclear & particles physics, superconductivity, down: mass, Detector, Bolometer, sensitivity, Lepton number, crystal: surface, observatory, MAJORANA, mass: Majorana, radioactivity, lcsh:QC770-798, Neutrino, experimental results
Abstract

International audience; Neutrinoless double-beta decay is a key process in particle physics. Its experimental investigation is the only viable method that can establish the Majorana nature of neutrinos, providing at the same time a sensitive inclusive test of lepton number violation. CROSS (Cryogenic Rare-event Observatory with Surface Sensitivity) aims at developing and testing a new bolometric technology to be applied to future large-scale experiments searching for neutrinoless double-beta decay of the promising nuclei $^{100}$Mo and $^{130}$Te. The limiting factor in large-scale bolometric searches for this rare process is the background induced by surface radioactive contamination, as shown by the results of the CUORE experiment. The basic concept of CROSS consists of rejecting this challenging background component by pulse-shape discrimination, assisted by a proper coating of the faces of the crystal containing the isotope of interest and serving as energy absorber of the bolometric detector. In this paper, we demonstrate that ultra-pure superconductive Al films deposited on the crystal surfaces act successfully as pulse-shape modifiers, both with fast and slow phonon sensors. Rejection factors higher than 99.9% of α surface radioactivity have been demonstrated in a series of prototypes based on crystals of Li$_{2}$MoO$_{4}$ and TeO$_{2}$. We have also shown that point-like energy depositions can be identified up to a distance of ∼ 1 mm from the coated surface. The present program envisions an intermediate experiment to be installed underground in the Canfranc laboratory (Spain) in a CROSS-dedicated facility. This experiment, comprising ∼ 3×10$^{25}$ nuclei of $^{100}$Mo, will be a general test of the CROSS technology as well as a worldwide competitive search for neutrinoless double-beta decay, with sensitivity to the effective Majorana mass down to 70 meV in the most favorable conditions.[graphic not available: see fulltext]

Published
2019
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20. Precise measurement of 2ν2$\beta$ decay of $^{100}$Mo with Li$_2$MoO$_4$ low temperature detectors: Preliminary results

Author

S. Sorbino, C. Nones, G. Pessina, Yu. A. Borovlev, J. Kotila, L. Dumoulin, E. Queguiner, A. S. Barabash, M. Chapellier, E. Previtali, O. G. Polischuk, M. Xue, J. Gascon, X-F. Navick, P. Pari, B. Schmidt, M. Kleifges, L. Pagnanini, L. Pattavina, F. Bellini, V.V. Kobychev, N. Besson, M. Pavan, C. Tomei, S. Marnieros, H. Z. Huang, A. Cazes, S. Pirro, B. Paul, R.Huang Lbnl, Federico Ferri, R. Maisonobe, K. Schäffner, M. Gros, Ch. Bourgeois, V. I. Tretyak, M. De Jesus, K. Eitel, H. Khalife, P. de Marcillac, L. Vagneron, M. de Combarieu, E. Olivieri, E. Guerard, C. Rusconi, E. P. Makarov, A. Beno, V.N. Shlegel, D. V. Poda, Yao Shen, J. Johnston, Yu. G. Kolomensky, L. Gironi, J. Billard, A. Giuliani, S. I. Konovalov, N. Casali, I. Dafinei, E. Armengaud, V. B. Brudanin, F. Charlieux, T. Redon, C. Augier, Laura Cardani, A. Juillard, Haiping Peng, Lindley Winslow, Matias Velázquez, B.F. Fujikawa, F.A. Danevich, M. Beretta, V. I. Umatov, M. Vignati, A. Leder, E. Yakushev, M. Weber, S. V. Rozov, V. Novati, V.D. Grigorieva, Ph. Camus, A. S. Zolotarova, P. Loaiza, Luc Bergé, B. Siebenborn, V. Sanglard, 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 de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), 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), Institut Rayonnement Matière de Saclay (IRAMIS), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Hélium : du fondamental aux applications (NEEL - HELFA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Cryogénie (NEEL - Cryo), Science et Ingénierie des Matériaux et Procédés (SIMaP ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Armengaud, E, Augier, C, Barabash, A, Bellini, F, Beno, A, Beretta, M, Berge, L, Besson, N, Billard, J, Borovlev, Y, Bourgeois, C, Brudanin, V, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, De Combarieu, M, Danevich, F, Dafinei, I, De Jesus, M, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, B, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, V, Gros, M, Guerard, E, Huang, H, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, V, Kolomensky, Y, Konovalov, S, Leder, A, Kotila, J, Loaiza, P, Maisonobe, R, Makarov, E, De Marcillac, P, Marnieros, S, Navick, X, Nones, C, Novati, V, Olivieri, E, Pagnanini, L, Pari, P, Pattavina, L, Pavan, M, Paul, B, Peng, H, Pessina, G, Pirro, S, Poda, D, Polischuk, O, Previtali, E, Queguiner, E, Redon, T, Rozov, S, Rusconi, C, Sanglard, V, Schaffner, K, Shen, Y, Schmidt, B, Shlegel, V, Siebenborn, B, Sorbino, S, Tomei, C, Tretyak, V, Umatov, V, Vagneron, L, Velazquez, M, Vignati, M, Weber, M, Winslow, L, Xue, M, Yakushev, E, and Zolotarova, A

Subjects
Lithium molybdate, Materials science, energy: ground state, Analytical chemistry, lifetime: measured, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, law.invention, chemistry.chemical_compound, background: low, bolometer, temperature: low, law, Double beta decay, 0103 physical sciences, double-beta decay: (2neutrino), 010306 general physics, detector: temperature, molybdenum: nuclide, 010308 nuclear & particles physics, Bolometer, Detector, Beta decay, molybdenum: semileptonic decay, chemistry, Underground laboratory, scintillation counter: crystal, double beta decay, scintillating bolometers, Ground state, experimental results
Abstract

International audience; The half-life of 100Mo relatively to the 2ν2β decay to the ground state of 100Ru was measured as T1/2 = (6.99±0.15) × 1018 yr with the help of enriched in 100Mo lithium molybdate scintillating bolometers in the EDELWEISS-III low background set-up at the Modane underground laboratory. This is the most accurate value of the 2ν2β half-life of 100Mo.

Published
2019
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22. Full range resistive thermometers

Author

E. Olivieri, P. Forget, Miloš Rotter, M. De Combarieu, P. Pari, C. Marrache-Kikuchi, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Laboratoire de Cryogénie (LC), Service de physique de l'état condensé (SPEC - UMR3680), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
Thermometer, [PHYS]Physics [physics], Resistive touchscreen, Materials science, Cryogenics, business.industry, General Physics and Astronomy, Cryometer, Thermodynamics, Atmospheric temperature range, 7. Clean energy, Characterization (materials science), Range (statistics), [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Optoelectronics, Low temperature, General Materials Science, Sensitivity (control systems), [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], business, Dry dilution refrigerators
Abstract

International audience; Resistive thermometers are widely used in low temperature physics, thanks to portability, simplicity of operation and reduced size. The possibility to precisely follow the temperature from room temperature down to the mK region is of major interest for numerous applications, although no single thermometer can nowadays cover this entire temperature range. In this article we report on a method to realize a full range thermometer, capable to measure, by itself, temperatures in the whole above-cited temperature range, with constant sensitivity and sufficient precision for the typical cryogenic applications. We present here the first results for three different full range thermometer prototypes. A detailed description of the set-up used for measurements and characterization is also reported.

Published
2015
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23. Formation Of A Cold Antihydrogen Beam in AEGIS For Gravity MeasurementsAIP Conference Proceedings

Author

G. Testera, A. S. Belov, G. Bonomi, I. Boscolo, N. Brambilla, R. S. Brusa, V. M. Byakov, L. Cabaret, C. Canali, C. Carraro, F. Castelli, S. Cialdi, M. de Combarieu, D. Comparat, G. Consolati, N. Djourelov, M. Doser, G. Drobychev, A. Dupasquier, D. Fabris, R. Ferragut, G. Ferrari, A. Fischer, A. Fontana, P. Forget, L. Formaro, M. Lunardon, A. Gervasini, M. G. Giammarchi, S. N. Gninenko, G. Gribakin, R. Heyne, S. D. Hogan, A. Kellerbauer, D. Krasnicky, V. Lagomarsino, G. Manuzio, S. Mariazzi, V. A. Matveev, F. Merkt, S. Moretto, C. Morhard, G. Nebbia, P. Nedelec, M. K. Oberthaler, P. Pari, V. Petracek, I. Y. Al Qaradawi, F. Quasso, O. Rohne, S. Pesente, A. Rotondi, S. Stapnes, D. Sillou, S. V. Stepanov, H. H. Stroke, G. Tino, A. Vairo, G. Viesti, H. Walters, U. Warring, S. Zavatarelli, A. Zenoni, D. S. Zvezhinskij, Yasuyuki Kanai, Yasunori Yamazaki, PREVEDELLI, MARCO, G. Testera, A. S. Belov, G. Bonomi, I. Boscolo, N. Brambilla, R. S. Brusa, V. M. Byakov, L. Cabaret, C. Canali, C. Carraro, F. Castelli, S. Cialdi, M. de Combarieu, D. Comparat, G. Consolati, N. Djourelov, M. Doser, G. Drobychev, A. Dupasquier, D. Fabri, R. Ferragut, G. Ferrari, A. Fischer, A. Fontana, P. Forget, L. Formaro, M. Lunardon, A. Gervasini, M. G. Giammarchi, S. N. Gninenko, G. Gribakin, R. Heyne, S. D. Hogan, A. Kellerbauer, D. Krasnicky, V. Lagomarsino, G. Manuzio, S. Mariazzi, V. A. Matveev, F. Merkt, S. Moretto, C. Morhard, G. Nebbia, P. Nedelec, M. K. Oberthaler, P. Pari, V. Petracek, M. Prevedelli, I. Y. Al-Qaradawi, F. Quasso, O. Rohne, S. Pesente, A. Rotondi, S. Stapne, D. Sillou, S. V. Stepanov, H. H. Stroke, G. Tino, A. Vairo, G. Viesti, H. Walter, U. Warring, S. Zavatarelli, A. Zenoni, D. S. Zvezhinskij, Yasuyuki Kanai, and Yasunori Yamazaki

Subjects
ELEMENTARY PARTICLE PHYSICS, Physics::Accelerator Physics, GRAVITATION, Physics::Atomic Physics
Abstract

The formation of the antihydrogen beam in the AEGIS experiment through the use of inhomogeneous electric fields is discussed and simulation results including the geometry of the apparatus and realistic hypothesis about the antihydrogen initial conditions are shown. The resulting velocity distribution matches the requirements of the gravity experiment. In particular it is shown that the inhomogeneous electric fields provide radial cooling of the beam during the acceleration.

Published
2008

24. Proposed antimatter gravity measurement with an antihydrogen beam

Author

Alban Kellerbauer, L. Formaro, V. Lagomarsino, Marco Prevedelli, M. de Combarieu, H. H. Stroke, Alfredo Dupasquier, M. Amoretti, P. Forget, P. Pari, G. Testera, Nikolay Djourelov, Alberto Rotondi, Vsevolod M. Byakov, Guglielmo M. Tino, D. S. Zvezhinskij, Jacques Vigué, Simone Cialdi, Fabrizio Castelli, Michael Doser, Marco Giammarchi, A. S. Belov, J. O. Meier, Daniel Comparat, L. Cabaret, Sergei Gninenko, Sebastiano Mariazzi, Marion Jacquey, Fiorenza Quasso, G. Drobychev, Antonella Gervasini, Markus K. Oberthaler, Antonio Vairo, H. R. J. Walters, Gleb Gribakin, D. Sillou, Carlo Canali, S. D. Hogan, Sergey V. Stepanov, Frédéric Merkt, P. Nedelec, U. Warring, Sandra Zavatarelli, I. Boscolo, G. Manuzio, R. S. Brusa, Gabriele Ferrari, Viktor Matveev, G. Trénec, C. Carraro, Giovanni Consolati, Germano Bonomi, Matthias Büchner, Interférométrie (LCAR), Laboratoire Collisions Agrégats Réactivité (LCAR), Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Service de physique de l'état condensé (SPEC - UMR3680), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire Aimé Cotton (LAC), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), 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), A. Kellerbauer, M. Amoretti, A.S. Belov, G. Bonomi, I. Boscolo, R.S. Brusa, M. Buechner, V.M. Byakov, L. Cabaret, C. Canali, C. Carraro, F. Castelli, S. Cialdi, M. de Combarieu, D. Comparat, G. Consolati, N. Djourelov, M. Doser, G. Drobychev, A. Dupasquier, G. Ferrari, P. Forget, L. Formaro, A. Gervasini, M.G. Giammarchi, S.N. Gninenko, G. Gribakin, S. Hogan, M. Jacquey, V. Lagomarsino, G. Manuzio, S. Mariazzi, V.A. Matveev, J.O. Meier, F. Merkt, P. Nedelec, M.K. Oberthaler, P. Pari, M. Prevedelli, F. Quasso, A. Rotondi, D. Sillou, S.V. Stepanov, H.H. Stroke, G. Testera, G.M. Tino, G. Trenec, A. Vairo, J. Vigue, H. Walter, U. Warring, S. Zavatarelli, D.S. Zvezhinskij, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Antimatter, Gravity, Nuclear and High Energy Physics, Physics::General Physics, Large Hadron Collider, 010308 nuclear & particles physics, General relativity, Gravitational acceleration, 01 natural sciences, Nuclear physics, Antiproton Decelerator, Gravitation, gravity measurement, Interferometry, General Relativity and Quantum Cosmology, 03.75.Dg, 06.30.Gv, 25.43.+t, 34.80.Lx, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Antihydrogen, Instrumentation
Abstract

International audience; The principle of the equivalence of gravitational and inertial mass is one of the cornerstones of general relativity. Considerable efforts have been made and are still being made to verify its validity. A quantum-mechanical formulation of gravity allows for non-Newtonian contributions to the force which might lead to a difference in the gravitational force on matter and antimatter. While it is widely expected that the gravitational interaction of matter and of antimatter should be identical, this assertion has never been tested experimentally. With the production of large amounts of cold antihydrogen at the CERN Antiproton Decelerator, such a test with neutral antimatter atoms has now become feasible. For this purpose, we have proposed to set up the AEGIS experiment at CERN/AD, whose primary goal will be the direct measurement of the Earth's gravitational acceleration on antihydrogen with a classical Moiré deflectometer.

Published
2007
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25. Formation of a Cold Antihydrogen Beam in AEGIS for Gravity Measurements

Author

G. Testera, A. S. Belov, G. Bonomi, I. Boscolo, N. Brambilla, R. S. Brusa, V. M. Byakov, L. Cabaret, C. Canali, C. Carraro, F. Castelli, S. Cialdi, M. de Combarieu, D. Comparat, G. Consolati, N. Djourelov, M. Doser, G. Drobychev, A. Dupasquier, D. Fabris, R. Ferragut, G. Ferrari, A. Fischer, A. Fontana, P. Forget, L. Formaro, M. Lunardon, A. Gervasini, M. G. Giammarchi, S. N. Gninenko, G. Gribakin, R. Heyne, S. D. Hogan, A. Kellerbauer, D. Krasnicky, V. Lagomarsino, G. Manuzio, S. Mariazzi, V. A. Matveev, F. Merkt, S. Moretto, C. Morhard, G. Nebbia, P. Nedelec, M. K. Oberthaler, P. Pari, V. Petracek, M. Prevedelli, I. Y. Al-Qaradawi, F. Quasso, O. Rohne, S. Pesente, A. Rotondi, S. Stapnes, D. Sillou, S. V. Stepanov, H. H. Stroke, G. Tino, A. Vairo, G. Viesti, H. Walters, U. Warring, S. Zavatarelli, A. Zenoni, D. S. Zvezhinskij, Yasuyuki Kanai, and Yasunori Yamazaki

Subjects
Physics, Gravity (chemistry), Atomic Physics (physics.atom-ph), Other Fields of Physics, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), General Relativity and Quantum Cosmology, Computational physics, Physics - Atomic Physics, Acceleration, Electric field, Physics::Accelerator Physics, Physics::Atomic Physics, Atomic physics, Antihydrogen, Beam (structure)
Abstract

The formation of the antihydrogen beam in the AEGIS experiment through the use of inhomogeneous electric fields is discussed and simulation results including the geometry of the apparatus and realistic hypothesis about the antihydrogen initial conditions are shown. The resulting velocity distribution matches the requirements of the gravity experiment. In particular it is shown that the inhomogeneous electric fields provide radial cooling of the beam during the acceleration., Comment: Invited talk at Pbar08 - Workshop on Cold Antimatter Plasmas and Application to Fundamental Physics, Okinawa, Japan, 2008

Published
2008

26. Phonon-mediated crystal detectors with metallic film coating capable of rejecting α and β events induced by surface radioactivity

Author

Aldo Ianni, S. Marnieros, C. Nones, Federico Ferri, R. Mariam, P. de Marcillac, A. Giuliani, J. A. Scarpaci, M. Chapellier, Miriam Lucio Martinez, I. C. Bandac, L. Dumoulin, Paolo Carniti, M. de Combarieu, G. Pessina, M. M. Zarytskyy, S. I. Konovalov, Ph. Gras, F.A. Danevich, V. I. Tretyak, Th. Redon, C. Gotti, M. Madhukuttan, Ch. Bourgeois, A. S. Barabash, A. S. Zolotarova, E. Guerard, I. Dafinei, J.M. Calvo-Mozota, V. I. Umatov, P. Loaiza, Claire A. Marrache-Kikuchi, D. V. Poda, H. Khalife, Luc Bergé, E. Olivieri, 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Bandac, I, Barabash, A, Berge, L, Bourgeois, C, Calvo-Mozota, J, Carniti, P, Chapellier, M, Decombarieu, M, Dafinei, I, Danevich, F, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, P, Guerard, E, Ianni, A, Khalife, H, Konovalov, S, Loaiza, P, Madhukuttan, M, Demarcillac, P, Mariam, R, Marnieros, S, Marrache-Kikuchi, C, Martinez, M, Nones, C, Olivieri, E, Pessina, G, Poda, D, Redon, T, Scarpaci, J, Tretyak, V, Umatov, V, Zarytskyy, M, and Zolotarova, A

Subjects
Materials science, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), detector: crystal, Phonon, 02 engineering and technology, engineering.material, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Molecular physics, Crystal, Film coating, Coating, double-beta decay: (0neutrino), 0103 physical sciences, Thermal, electron: irradiation, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], phonon, Nuclear Experiment, 010302 applied physics, helium: irradiation, background, superconductivity, 021001 nanoscience & nanotechnology, palladium, crystal: surface, molybdenum: oxygen, CROSS, Cascade, lithium, engineering, Particle, Neutrino, 0210 nano-technology
Abstract

Phonon-mediated particle detectors based on single crystals and operated at millikelvin temperatures are used in rare-event experiments for neutrino physics and dark-matter searches. In general, these devices are not sensitive to the particle impact point, especially if the detection is mediated by thermal phonons. In this Letter, we demonstrate that excellent discrimination between interior and surface $\beta$ and $\alpha$ events can be achieved by coating a crystal face with a thin metallic film, either continuous or in the form of a grid. The coating affects the phonon energy down-conversion cascade that follows the particle interaction, leading to a modified signal shape for close-to-film events. An efficient identification of surface events was demonstrated with detectors based on a rectangular $20 \times 20 \times 10$ mm$^3$ Li$_2$MoO$_4$ crystal coated with a Pd normal-metal film (10~nm thick) and with Al-Pd superconductive bi-layers (100~nm-10~nm thick) on a $20 \times 20$ mm$^2$ face. Discrimination capabilities were tested with $^{238}$U sources emitting both $\alpha$ and $\beta$ particles. Surface events are identified for energy depositions down to millimeter-scale depths from the coated surface. With this technology, a substantial improvement of the background figure can be achieved in experiments searching for neutrinoless double-beta decay.

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27. New Limit for Neutrinoless Double-Beta Decay of ^{100}Mo from the CUPID-Mo Experiment.

Author

Armengaud E, Augier C, Barabash AS, Bellini F, Benato G, Benoît A, Beretta M, Bergé L, Billard J, Borovlev YA, Bourgeois C, Brudanin VB, Camus P, Cardani L, Casali N, Cazes A, Chapellier M, Charlieux F, Chiesa D, de Combarieu M, Dafinei I, Danevich FA, De Jesus M, Dixon T, Dumoulin L, Eitel K, Ferri F, Fujikawa BK, Gascon J, Gironi L, Giuliani A, Grigorieva VD, Gros M, Guerard E, Helis DL, Huang HZ, Huang R, Johnston J, Juillard A, Khalife H, Kleifges M, Kobychev VV, Kolomensky YG, Konovalov SI, Leder A, Loaiza P, Ma L, Makarov EP, de Marcillac P, Mariam R, Marini L, Marnieros S, Misiak D, Navick XF, Nones C, Norman EB, Novati V, Olivieri E, Ouellet JL, Pagnanini L, Pari P, Pattavina L, Paul B, Pavan M, Peng H, Pessina G, Pirro S, Poda DV, Polischuk OG, Pozzi S, Previtali E, Redon T, Rojas A, Rozov S, Rusconi C, Sanglard V, Scarpaci JA, Schäffner K, Schmidt B, Shen Y, Shlegel VN, Siebenborn B, Singh V, Tomei C, Tretyak VI, Umatov VI, Vagneron L, Velázquez M, Welliver B, Winslow L, Xue M, Yakushev E, Zarytskyy M, and Zolotarova AS

Abstract

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale bolometric 0νββ experiment. It consists of a 4.2 kg array of 20 enriched Li&#95;{2}^{100}MoO&#95;{4} scintillating bolometers to search for the lepton-number-violating process of 0νββ decay in ^{100}Mo. With more than one year of operation (^{100}Mo exposure of 1.17  kg×yr for physics data), no event in the region of interest and, hence, no evidence for 0νββ is observed. We report a new limit on the half-life of 0νββ decay in ^{100}Mo of T&#95;{1/2}>1.5×10^{24}  yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass ⟨m&#95;{ββ}⟩<(0.31-0.54)  eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.

Published
2021
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28. Development of 100 Mo -containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search.

Author

Armengaud E, Augier C, Barabash AS, Beeman JW, Bekker TB, Bellini F, Benoît A, Bergé L, Bergmann T, Billard J, Boiko RS, Broniatowski A, Brudanin V, Camus P, Capelli S, Cardani L, Casali N, Cazes A, Chapellier M, Charlieux F, Chernyak DM, de Combarieu M, Coron N, Danevich FA, Dafinei I, Jesus M, Devoyon L, Domizio SD, Dumoulin L, Eitel K, Enss C, Ferroni F, Fleischmann A, Foerster N, Gascon J, Gastaldo L, Gironi L, Giuliani A, Grigorieva VD, Gros M, Hehn L, Hervé S, Humbert V, Ivannikova NV, Ivanov IM, Jin Y, Juillard A, Kleifges M, Kobychev VV, Konovalov SI, Koskas F, Kozlov V, Kraus H, Kudryavtsev VA, Laubenstein M, Sueur HL, Loidl M, Magnier P, Makarov EP, Mancuso M, de Marcillac P, Marnieros S, Marrache-Kikuchi C, Nagorny S, Navick XF, Nikolaichuk MO, Nones C, Novati V, Olivieri E, Pagnanini L, Pari P, Pattavina L, Pavan M, Paul B, Penichot Y, Pessina G, Piperno G, Pirro S, Plantevin O, Poda DV, Queguiner E, Redon T, Rodrigues M, Rozov S, Rusconi C, Sanglard V, Schäffner K, Scorza S, Shlegel VN, Siebenborn B, Strazzer O, Tcherniakhovski D, Tomei C, Tretyak VI, Umatov VI, Vagneron L, Vasiliev YV, Velázquez M, Vignati M, Weber M, Yakushev E, and Zolotarova AS

Abstract

This paper reports on the development of a technology involving 100 Mo -enriched scintillating bolometers, compatible with the goals of CUPID, a proposed next-generation bolometric experiment to search for neutrinoless double-beta decay. Large mass ( ∼ 1 kg ), high optical quality, radiopure 100 Mo -containing zinc and lithium molybdate crystals have been produced and used to develop high performance single detector modules based on 0.2-0.4 kg scintillating bolometers. In particular, the energy resolution of the lithium molybdate detectors near the Q -value of the double-beta transition of 100 Mo (3034 keV) is 4-6 keV FWHM. The rejection of the α -induced dominant background above 2.6 MeV is better than 8 σ . Less than 10 μ Bq/kg activity of 232 Th ( 228 Th ) and 226 Ra in the crystals is ensured by boule recrystallization. The potential of 100 Mo -enriched scintillating bolometers to perform high sensitivity double-beta decay searches has been demonstrated with only 10 kg × d exposure: the two neutrino double-beta decay half-life of 100 Mo has been measured with the up-to-date highest accuracy as T 1 / 2 = [6.90 ± 0.15(stat.) ± 0.37(syst.)] × 10 18 years . Both crystallization and detector technologies favor lithium molybdate, which has been selected for the ongoing construction of the CUPID-0/Mo demonstrator, containing several kg of 100 Mo ., (© The Author(s) 2017.)

Published
2017
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