학술논문

Double-beta decay of 130Te to the first 0+ excited state of 130Xe with CUORE-0
Document Type
article
Source
European Physical Journal C. 79(9)
Subject
nucl-ex
physics.ins-det
Nuclear & Particles Physics
Quantum Physics
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Language
Abstract
We report on a search for double beta decay of $^{130}$Te to the first$0^{+}$ excited state of $^{130}$Xe using a 9.8 kg$\cdot$yr exposure of$^{130}$Te collected with the CUORE-0 experiment. In this work we exploitdifferent topologies of coincident events to search for both the neutrinolessand two-neutrino double-decay modes. We find no evidence for either mode andplace lower bounds on the half-lives: $\tau^{0\nu}_{0^+}>7.9\cdot 10^{23}$ yrand $\tau^{2\nu}_{0^+}>2.4\cdot 10^{23}$ yr. Combining our results with thoseobtained by the CUORICINO experiment, we achieve the most stringent constraintsavailable for these processes: $\tau^{0\nu}_{0^+}>1.4\cdot 10^{24}$ yr and$\tau^{2\nu}_{0^+}>2.5\cdot 10^{23}$ yr.