2019-09-24 Double-beta decay of Te-130 to the first 0+ excited state of Xe-130 with CUORE-0
Submitted by valentina_dompe on Tue, 10/01/2019 - 11:23
Journal:
The European Physical Journal C
Year:
2019
Volume:
79
Page:
795
DOI:
10.1140/epjc/s10052-019-7275-5
arXiv:
1811.10363
Type:
Title:
Double-beta decay of Te-130 to the first 0+ excited state of Xe-130 with CUORE-0
Abstract (for collaboration papers):
We report on a search for double beta decay of 130Te to the first 0+ excited state of 130Xe using a 9.8 kg yr exposure of 130Te collected with the CUORE-0 experiment. In this work we exploit different topologies of coincident events to search for both the neutrinoless and two-neutrino double beta decay modes. We find no evidence for either mode and place lower bounds on the half-lives: T0ν0+1 > 7.9×1023 yr and T2ν0+1 > 2.4×1023 (90% CL). Combining our results with those obtained by the CUORICINO experiment, we achieve the most stringent constraints available for these processes: T0ν0+1 > 1.4×1024 yr and T2ν0+1 > 2.5×1023 yr (90% CL).