Abstract
CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation 0nu beta beta decay experiment, CUPID. It consisted of an array of 20 enriched Li_{2}^{100}MoO_4 bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform and validate the background prediction for CUPID. In this paper, we present a detailed model of the CUPID-Mo backgrounds. This model is able to describe well the features of the experimental data and enables studies of the 2nu beta beta decay and other processes with high precision. We also measure the radio-purity of the Li_{2}^{100}MoO_4 crystals which are found to be sufficient for the CUPID goals. Finally, we also obtain a background index in the region of interest of 3.7 ^{+0.9}_{-0.8} (stat)^{+1.5}_{-0.7} (syst) times ~10 ^{-3} counts/Delta E_{text {FWHM}}/text {mol}_{text {iso}}/text {year}, the lowest in a bolometric 0nu beta beta decay experiment.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
