Abstract: CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation decay experiment, CUPID. It consisted of an array of 20 enriched Li MoO 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 decay and other processes with high precision. We also measure the radio-purity of the Li MoO 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 (stat) (syst) counts/ the lowest in a bolometric decay experiment.

Cite: Augier C. , Barabash A.S. , Bellini F. , Benato G. , Beretta M. , Berge L. , Borovlev Y.A. , Grigorieva V.D. , Makarov E.P. , Shlegel V.N. , Zolotarova A.S.
The background model of the CUPID-Mo 0νββ experiment
European Physical Journal C. 2023. V.83. N7. 675 :1-24. DOI: 10.1140/epjc/s10052-023-11830-2 WOS Scopus РИНЦ OpenAlex

Dates:

Submitted:	May 2, 2023
Accepted:	Jul 10, 2023
Published print:	Jul 28, 2023
Published online:	Jul 28, 2023

Identifiers:

Web of science:	WOS:001066712500001
Scopus:	2-s2.0-85159656592
Elibrary:	63037294
OpenAlex:	W4367860377

Citing:

DB	Citing
OpenAlex	6
Web of science	5
Scopus	6

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