A new limit for neutrinoless double-beta decay of $^{100}$Mo from the CUPID-Mo experiment
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A new limit for neutrinoless double-beta decay of $^{100}$Mo from the CUPID-Mo experiment

  • Author(s): Armengaud, E
  • Augier, C
  • Barabash, AS
  • Bellini, F
  • Benato, G
  • Benoît, A
  • Beretta, M
  • Bergé, L
  • Billard, J
  • Borovlev, Yu A
  • Bourgeois, Ch
  • Brudanin, VB
  • Camus, P
  • Cardani, L
  • Casali, N
  • Cazes, A
  • Chapellier, M
  • Charlieux, F
  • Chiesa, D
  • Combarieu, M de
  • Dafinei, I
  • Danevich, FA
  • Jesus, M De
  • 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, Yu G
  • Konovalov, SI
  • Leder, A
  • Loaiza, P
  • Ma, L
  • Makarov, EP
  • Marcillac, P de
  • Mariam, R
  • Marini, L
  • Marnieros, S
  • Misiak, D
  • Navick, X-F
  • 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, Th
  • 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
  • Zolotarova, AS
  • et al.
Abstract

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale cryogenic $0\nu\beta\beta$ 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 $0\nu\beta\beta$ decay in $^{100}$Mo. With more than one year of operation (2.16 kg$\times$yr of physics data), no event in the region of interest and hence no evidence for $0\nu\beta\beta$ is observed. We report a new limit on the half-life of $0\nu\beta\beta$ decay in $^{100}$Mo of $T_{1/2} > 1.5 \times 10^{24}\,$yr at 90 % C.I. The limit corresponds to an effective Majorana neutrino mass $\langle m_{\beta\beta} \rangle$ $<$ (0.3--0.5)$\,$eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.

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