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

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 6.7keV (FWHM) at 2615keV 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 $T_{1/2}^{0\nu }>3\times 10^{23}$yr for ${}^{100}$Mo and discuss the sensitivity of CUPID-Mo until the expected end of physics data taking in early 2020.

Proceedings for TAUP 2019, submitted to IOP Journal of Physics: Conference Series

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Cited by in corpus (7)

• New Limit for Neutrinoless Double-Beta Decay of ${}^{100}$Mo from the CUPID-Mo Experiment
• Towards complete leading-order predictions for neutrinoless double $\beta$ decay
• Determining the leading-order contact term in neutrinoless double $\mathbf{\beta }$ decay
• Final Result on the Neutrinoless Double Beta Decay of ${}^{82}$Se with CUPID-0
• Twelve-crystal prototype of Li${}_2$MoO${}_4$ scintillating bolometers for CUPID and CROSS experiments
• First demonstration of a TES based cryogenic Li${}_2$MoO${}_4$detector for neutrinoless double beta decay search
• Cosmogenic background study for a 100Mo-based bolometric demonstration experiment at China JinPing underground Laboratory