CUPID, the CUORE Upgrade with Particle Identification

Alfonso, K.; Armatol, A.; Augier, C.; Avignone, F.T., III; Azzolini, O.; Barabash, A.S.; Bari, G.; Barresi, A.; Baudin, D.; Bellini, F.

CUPID, the CUORE Upgrade with Particle Identification

CUPID

Collaboration

Mar 1, 2025

24 pages

e-Print:

2503.02894 [physics.ins-det]

Experiments:

CUPID

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Abstract: (arXiv)

CUPID, the CUORE Upgrade with Particle Identification, is a next-generation experiment to search for neutrinoless double beta decay (

0\nu\beta\beta

) and other rare events using enriched Li

_2

^{100}

MoO

_4

scintillating bolometers. It will be hosted by the CUORE cryostat located at the Laboratori Nazionali del Gran Sasso in Italy. The main physics goal of CUPID is to search for

0\nu\beta\beta

of

^{100}

Mo with a discovery sensitivity covering the full neutrino mass regime in the inverted ordering scenario, as well as the portion of the normal ordering regime with lightest neutrino mass larger than 10 meV. With a conservative background index of 10

^{-4}

cnts/(keV

\cdot

kg

\cdot

yr), 240 kg isotope mass, 5 keV FWHM energy resolution and 10 live-years of data taking, CUPID will have a 90% C.L. half-life exclusion sensitivity of 1.8

\cdot

10

^{27}

yr, corresponding to an effective Majorana neutrino mass (

m_{\beta\beta}

) sensitivity of 9--15 meV, and a

3\sigma

discovery sensitivity of 1

\cdot

10

^{27}

yr, corresponding to an

m_{\beta\beta}

range of 12--21 meV.

Note:

Prepared for submission to EPJC; 24 pages, 6 figures, and 2 tables

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