PETTINACCI , V.

Cryogenic calorimeters are currently used by experiments searching for neutrino-less double beta decay (0νββ). The sensitivity of these experiments is limited by the background coming from α radioactive contaminations. This background can be rejected exploiting the simultaneous readout of light and heat in scintillating cryogenic calorimeters,...

The CUPID-0 detector hosted at the Laboratori Nazionali del Gran Sasso, Italy, is the first large array of enriched scintillating cryogenic detectors for the investigation of82Se neutrinoless double-beta decay (0). CUPID-0 aims at measuring a background index in the region of interest (RoI) for 0at the level of 10- 3 counts/(keV kg years), the...

The CUPID-0 experiment searches for double beta decay using cryogenic calorimeters with double (heat and light) read-out. The detector, consisting of 24 ZnSe crystals 95% enriched in 82 Se and two natural ZnSe crystals, started data-taking in 2017 at Laboratori Nazionali del Gran Sasso. We present the search for the neutrino-less double beta...

The suppression of spurious events in the region of interest for neutrinoless double beta decay will play a major role in next generation experiments. The background of detectors based on the technology of cryogenic calorimeters is expected to be dominated by α particles, that could be disentangled from double beta decay signals by exploiting...

The R&D activity performed during the last years proved the potential of ZnSe scintillating bolometers to the search for neutrino-less double beta decay, motivating the realization of the first large-mass experiment based on this technology: CUPID-0. The isotopic enrichment in 82Se, the Zn82Se crystals growth, as well as the light detectors...

Future experiments on neutrinoless double beta-decay with the aim of exploring the inverted hierarchy region have to employ detectors with excellent energy resolution and zero background in the energy region of interest. Cryogenic scintillating bolometers turn out to be a suitable candidate since they offer particle discrimination: the dual...

CUPID-0 is an array of 24 Zn82Se scintillating bolometers used to search for the 0νββ decay of 82Se. It is the first large mass 0νββ experiment exploiting a double read-out technique: the phonon signal to accurately measure particle energies and the light signal to reject the α-induced background. Its success might open the road to a next...

We report the result of the search for neutrinoless double beta decay of 82Se obtained with CUPID-0, the first large array of scintillating Zn82Se cryogenic calorimeters implementing particle identification. We observe no signal in a 1.83 kg yr 82Se exposure, and we set the most stringent lower limit on the 0vββ 82Se half-life T0v 1=2 > 2.4 ×...

With their excellent energy resolution, efficiency, and intrinsic radio-purity, cryogenic calorimeters are primed for the search of neutrino-less double beta decay (0nDBD). The sensitivity of these devices could be further increased by discriminating the dominant alpha background from the expected beta-like signal. The CUPID-0 collaboration...

We present the search for Lorentz violation in the double beta decay of Se-82 with CUPID-0, using an exposure of 9.95 kg x yr. We found no evidence for the searched signal and set a limit on the isotropic components of the Lorentz violating coefficient of (a) over circle ((3))(of) < 4.1 x 10(-6) GeV (90% credible interval). This results is...