First data from the CUPID-Mo neutrinoless double beta decay experiment
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First data from the CUPID-Mo neutrinoless double beta decay experiment

  • Author(s): Schmidt, B
  • Armengaud, E
  • Augier, C
  • Barabash, AS
  • Bellini, F
  • Benato, G
  • Benoît, A
  • Beretta, M
  • Bergé, L
  • Billard, J
  • Borovlev, Yu A
  • Bourgeois, Ch
  • Briere, M
  • Brudanin, VB
  • Camus, P
  • Cardani, L
  • Casali, N
  • Cazes, A
  • Chapellier, M
  • Charlieux, F
  • Combarieu, M de
  • Dafinei, I
  • Danevich, FA
  • Jesus, M De
  • Dumoulin, L
  • Eitel, K
  • Elkhoury, E
  • 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
  • Marini, L
  • Marnieros, S
  • Misiak, D
  • Navick, X-F
  • Nones, C
  • 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
  • Previtali, E
  • Redon, Th
  • Rozov, S
  • Rusconi, C
  • Sanglard, V
  • Schäffner, K
  • Shen, Y
  • Shlegel, VN
  • Siebenborn, B
  • Singh, V
  • Sorbino, S
  • Tomei, C
  • Tretyak, VI
  • Umatov, VI
  • Vagneron, L
  • Velázquez, M
  • Weber, M
  • Welliver, B
  • Winslow, L
  • Xue, M
  • Yakushev, E
  • Zolotarova, AS
  • et al.
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.

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