We report on a search for double beta decay of 130Te to the first 0 + excited state of 130Xe using a 9.8kg·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: T01+0ν>7.9·1023yr and T01+2ν>2.4·1023yr (90%CL). Combining our results with those obtained by the CUORICINO experiment, we achieve the most stringent constraints available for these processes: T01+0ν>1.4·1024yr and T01+2ν>2.5·1023yr (90%CL).
Alduino C., Alfonso K., Artusa D.R., AvignoneIII F.T., Azzolini O., Banks T.I., et al. (2019). Double-beta decay of 130Te to the first 0 + excited state of 130Xe with CUORE-0. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 79(9), 1-9 [10.1140/epjc/s10052-019-7275-5].
Double-beta decay of 130Te to the first 0 + excited state of 130Xe with CUORE-0
Deninno M. M.;Moggi N.;Zucchelli S.
2019
Abstract
We report on a search for double beta decay of 130Te to the first 0 + excited state of 130Xe using a 9.8kg·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: T01+0ν>7.9·1023yr and T01+2ν>2.4·1023yr (90%CL). Combining our results with those obtained by the CUORICINO experiment, we achieve the most stringent constraints available for these processes: T01+0ν>1.4·1024yr and T01+2ν>2.5·1023yr (90%CL).File | Dimensione | Formato | |
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