Measurement of the Two-Neutrino Double Beta Decay Half-life of $^{130}$Te with the CUORE-0 Experiment

TL;DR

This paper reports a precise measurement of the two-neutrino double beta decay half-life of $^{130}$Te using the CUORE-0 detector, providing valuable data for neutrino physics and double beta decay research.

Contribution

First measurement of the $^{130}$Te two-neutrino double beta decay half-life with CUORE-0, including detailed background source analysis.

Findings

Half-life determined as (8.2 ± 0.2 (stat.) ± 0.6 (syst.)) × 10^{20} years.

Comprehensive background source reconstruction for CUORE-0.

Analysis of contributions to the neutrinoless double beta decay region.

Abstract

We report on the measurement of the two-neutrino double beta decay half-life of $^{130}$Te with the CUORE-0 detector. From an exposure of 33.4 kg$\cdot$y of TeO$_2$, the half-life is determined to be $T_{1/2}^{2\nu}$ = [8.2 $\pm$ 0.2 (stat.) $\pm$ 0.6 (syst.)] $\times$ 10$^{20}$y. This result is obtained after a detailed reconstruction of the sources responsible for the CUORE-0 counting rate, with a specific study of those contributing to the $^{130}$Te neutrinoless double beta decay region of interest.