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Armengaud, E; Augier, C; Barabash, A S; Bellini, F; Benato, G; Benoît, A; Beretta, M; Bergé, L; Billard, J; Borovlev, Yu A; Bourgeois, Ch; Brudanin, V B; Camus, P; Cardani, L; Casali, N; Cazes, A; Chapellier, M; Charlieux, F; Chiesa, D; de Combarieu, M; Dafinei, I; Danevich, F A; De Jesus, M; Dixon, T; Dumoulin, L; Eitel, K; 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, Yu G; Konovalov, S I; Leder, A; Loaiza, P; Ma, L; Makarov, E P; de Marcillac, P; Mariam, R; Marini, L; Marnieros, S; Misiak, D; Navick, X-F; Nones, C; Norman, E B; 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; Pozzi, S; Previtali, E; Redon, Th; Rojas, A; Rozov, S; Rusconi, C; Sanglard, V; Scarpaci, J A; Schäffner, K; Schmidt, B; Shen, Y; Shlegel, V N; Siebenborn, B; Singh, V; Tomei, C; Tretyak, V I; Umatov, V I; Vagneron, L; Velázquez, M; Welliver, B; Winslow, L; Xue, M; Yakushev, E; Zarytskyy, M; Zolotarova, A S
Physical review letters, 05/2021, Letnik: 126, Številka: 18Journal Article
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 Li2 100MoO4 scintillating bolometers to search for the lepton-number-violating process of 0νββ decay in 100Mo. With more than one year of operation (100Mo 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 100Mo of T1/2 > 1.5 × 1024 yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass ⟨m β β⟩ < (0.31 –0.54 ) eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.
