A convincing observation of neutrino-less double beta decay (0νDBD) relies on the possibility of operating high energy-resolution detectors in background-free conditions. Scintillating cryogenic calorimeters are one of the most promising tools to fulfill the requirements for a next-generation experiment. Several steps have been taken to demonstrate the maturity of this technique, starting from the successful experience of CUPID-0. The CUPID-0 experiment demonstrated the complete rejection of the dominant alpha background measuring the lowest counting rate in the region of interest for this technique. Furthermore, the most stringent limit on the 82Se 0νDBD was established running 26 ZnSe crystals during two years of continuous detector operation. In this contribution we present the final results of CUPID-0 Phase I including a detailed model of the background, the measurement of the 82Se 2νDBD half-life and the evidence that this nuclear transition is single state dominated.
@article{arxiv.2012.00644,
title = {Double beta decay results from the CUPID-0 experiment},
author = {D. Chiesa and O. Azzolini and J. W. Beeman and F. Bellini and M. Beretta and M. Biassoni and C. Brofferio and C. Bucci and S. Capelli and L. Cardani and E. Celi and P. Carniti and N. Casali and M. Clemenza and O. Cremonesi and A. Cruciani and A. D'Addabbo and I. Dafinei and S. Di Domizio and F. Ferroni and L. Gironi and A. Giuliani and P. Gorla and C. Gotti and G. Keppel and M. Martinez and S. Nagorny and M. Nastasi and S. Nisi and C. Nones and D. Orlandi and L. Pagnanini and M. Pallavicini and L. Pattavina and M. Pavan and G. Pessina and V. Pettinacci and S. Pirro and S. Pozzi and E. Previtali and A. Puiu and C. Rusconi and K. Schäffner and C. Tomei and M. Vignati and A. Zolotarova},
journal= {arXiv preprint arXiv:2012.00644},
year = {2020}
}
Comments
40th International Conference on High Energy physics - ICHEP2020 July 28 - August 6, 2020 Prague, Czech Republic (virtual meeting)