The CUORE experiment is the largest bolometric array ever built with the main goal of searching for the lepton number violating neutrinoless double beta decay of 130Te. The closely packed arrangement of the CUORE crystals allows us to look for coincident signals between detectors. The latest results on neutrino-less double beta decay search of 130Te to the ground 0+1 state of 130Xe and first 0+2 excited state will be presented and discussed. The presence of de-excitation gammas in the final state helps reducing the background by studying coincident events in two or more bolometers. The Standard Model 2νββ decay channel of the same isotope on the 0+2 excited state of 130Xe will be investigated as well. No evidence for any of the mentioned decay modes was observed and a Bayesian upper bound at 90 % C.I. on the decay rate will be presented and discussed.

Search for Double Beta Decay of 130Te to the 0+ States of 130Xe with the CUORE Experiment / Fantini, Guido. - (2020 Jul 22).

Search for Double Beta Decay of 130Te to the 0+ States of 130Xe with the CUORE Experiment

FANTINI, GUIDO
2020

Abstract

The CUORE experiment is the largest bolometric array ever built with the main goal of searching for the lepton number violating neutrinoless double beta decay of 130Te. The closely packed arrangement of the CUORE crystals allows us to look for coincident signals between detectors. The latest results on neutrino-less double beta decay search of 130Te to the ground 0+1 state of 130Xe and first 0+2 excited state will be presented and discussed. The presence of de-excitation gammas in the final state helps reducing the background by studying coincident events in two or more bolometers. The Standard Model 2νββ decay channel of the same isotope on the 0+2 excited state of 130Xe will be investigated as well. No evidence for any of the mentioned decay modes was observed and a Bayesian upper bound at 90 % C.I. on the decay rate will be presented and discussed.
double beta decay; excited states; 130Te; tellurium; CUORE; neutrino; Majorana;
Search for Double Beta Decay of 130Te to the 0+ States of 130Xe with the CUORE Experiment / Fantini, Guido. - (2020 Jul 22).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12571/9989
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