Resolution enhancement with light/heat decorrelation in CUPID-0 bolometric detector

Abstract

The CUPID-0 experiment searches for neutrinoless double beta decay ($0\nu \beta \beta$) using the first array of enriched Zn${}^{82}$Se scintillating bolometers with double (heat and light) read-out. To further enhance the CUPID-0 detector performances, the heat-light correlation has been exploited to improve the energy resolution. Different decorrelation algorithms have been studied and the best result is the average reduction of the full width at half maximum (FWHM) energy resolution to $(90.5\pm 0.6)\%$ of its original value , corresponding to a change from $\text{FWHM}=(20.7\pm 0.5)\text{keV}$ to $\text{FWHM}=(18.7\pm 0.5)\text{keV}$ at the 2615 keV $\gamma$ line.

References in corpus (6)

• Average and recommended half-life values for two neutrino double beta decay
• First Result on the Neutrinoless Double Beta Decay of ${}^{82}$Se with CUPID-0
• First array of enriched Zn${}^{82}$Se bolometers to search for double beta decay
• CUPID-0: the first array of enriched scintillating bolometers for 0νββdecay investigations
• Analysis of cryogenic calorimeters with light and heat read-out for double beta decay searches
• Search of the neutrino-less double beta decay of ${}^{82}$Se into the excited states of ${}^{82}$Kr with CUPID-0

Cited by in corpus (4)

• Final Result on the Neutrinoless Double Beta Decay of ${}^{82}$Se with CUPID-0
• Background identification in cryogenic calorimeters through $\alpha -\alpha$ delayed coincidences
• Search for Neutrino-less Double Beta Decay of ${}^{64}$Zn and ${}^{70}$Zn with CUPID-0
• Results on ${}^{82}$Se $2\nu \beta \beta$ with CUPID-0 Phase I