We report the measurement of the two-neutrino double-beta (2 νββ) decay of 100Mo to the ground state of 100Ru using lithium molybdate (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× day, the half-life of 100Mo is determined to be T1/22ν=[7.12-0.14+0.18(stat.)±0.10(syst.)]×1018 years. This is the most accurate determination of the 2 νββ half-life of 100Mo to date.
Precise measurement of 2 νββ decay of 100 Mo with the CUPID-Mo detection technology / Armengaud, E.; Augier, C.; Barabash, A. S.; Bellini, F.; Benato, G.; Benoit, A.; Beretta, M.; Berge, L.; Billard, J.; Borovlev, Y. A.; 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. A.; De Jesus, M.; Dumoulin, L.; Eitel, K.; Elkhoury, E.; Ferri, F.; Fujikawa, B. K.; Gascon, J.; Gironi, L.; Giuliani, A.; Grigorieva, V. D.; Gros, M.; Guerard, E.; Helis, D. L.; Huang, H. Z.; Huang, R.; Johnston, J.; Juillard, A.; Khalife, H.; Kleifges, M.; Kobychev, V. V.; Kolomensky, Y. G.; Konovalov, S. I.; Leder, A.; Kotila, J.; Loaiza, P.; Ma, L.; Makarov, E. P.; de Marcillac, P.; Marini, L.; Marnieros, S.; Misiak, D.; Navick, X. -F.; Nones, C.; Novati, V.; Olivieri, E.; Ouellet, J. L.; Pagnanini, L.; Pari, P.; Pattavina, L.; Paul, B.; Pavan, M.; Peng, H.; Pessina, G.; Pirro, S.; Poda, D. V.; Polischuk, O. G.; Previtali, E.; Redon, T.; Rozov, S.; Rusconi, C.; Sanglard, V.; Schaffner, K.; Schmidt, B.; Shen, Y.; Shlegel, V. N.; Siebenborn, B.; Singh, V.; Tomei, C.; Tretyak, V. I.; Umatov, V. I.; Vagneron, L.; Velazquez, M.; Weber, M.; Welliver, B.; Winslow, L.; Xue, M.; Yakushev, E.; Zolotarova, A. S.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 80:7(2020). [10.1140/epjc/s10052-020-8203-4]
Precise measurement of 2 νββ decay of 100 Mo with the CUPID-Mo detection technology
Bellini F.;Casali N.;
2020
Abstract
We report the measurement of the two-neutrino double-beta (2 νββ) decay of 100Mo to the ground state of 100Ru using lithium molybdate (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× day, the half-life of 100Mo is determined to be T1/22ν=[7.12-0.14+0.18(stat.)±0.10(syst.)]×1018 years. This is the most accurate determination of the 2 νββ half-life of 100Mo to date.| File | Dimensione | Formato | |
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