Double-beta decay of $$^{130}\hbox {Te}$$130Te to the first $$0^+$$0+ excited state of $$^{130}\hbox {Xe}$$130Xe with CUORE-0
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Author(s)
Alduino, C.
Alfonso, K.
Artusa, D. R
Avignone III, F. T
Azzolini, O.
Banks, T. I
Bari, G.
Beeman, J. W
Bellini, F.
Bersani, A.
Date Issued
September 24, 2019
Publisher
Springer Berlin Heidelberg
Citation
The European Physical Journal C. 2019 Sep 24;79(9):795
Version
Final published version
Abstract
Abstract
We report on a search for double beta decay of $$^{130}\hbox {Te}$$130Te to the first $$0^{+}$$0+ excited state of $$^{130}\hbox {Xe}$$130Xe using a $$9.8\,\hbox {kg}\cdot \hbox {yr}$$9.8kg·yr exposure of $$^{130}\hbox {Te}$$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: $$T^{0\nu }_{0^+_1}>7.9\cdot 10^{23}\hbox {yr}$$T01+0ν>7.9·1023yr and $$T^{2\nu }_{0^+_1}>2.4\cdot 10^{23}\hbox {yr}$$T01+2ν>2.4·1023yr ($$90\%\,\hbox {CL}$$90%CL). Combining our results with those obtained by the CUORICINO experiment, we achieve the most stringent constraints available for these processes: $$T^{0\nu }_{0^+_1}>1.4\cdot 10^{24}\hbox {yr}$$T01+0ν>1.4·1024yr and $$T^{2\nu }_{0^+_1}>2.5\cdot 10^{23}\hbox {yr}$$T01+2ν>2.5·1023yr ($$90\%\,\hbox {CL}$$90%CL).
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-019-7275-5
