We report on a search for double beta decay of 130Te to the first 0+ excited state of 130Xe using a 9.8 kg center dot 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+0 nu>7.9 center dot 1023yr and T01+2 nu>2.4 center dot 1023yr (90%CL). Combining our results with those obtained by the CUORICINO experiment, we achieve the most stringent constraints available for these processes: T01+0 nu>1.4 center dot 1024yr and T01+2 nu>2.5 center dot 1023yr (90%CL).
Double-beta decay of 130Te to the first 0 + excited state of 130Xe with CUORE-0 / Alduino, C., Alfonso, K., Artusa, D.R., Avignoneiii, F.T., Azzolini, O., Banks, T.I., Bari, G., Beeman, J.W., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Camacho, A., Caminata, A., Canonica, L., Cao, X.G., Capelli, S., Cappelli, L., Carbone, L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 79:9(2019). [10.1140/epjc/s10052-019-7275-5]
Double-beta decay of 130Te to the first 0 + excited state of 130Xe with CUORE-0
Bellini F.;Cardani L.;Casali N.;Cosmelli C.;Dafinei I.;Ferroni F.;Piperno G.;Vignati M.;
2019
Abstract
We report on a search for double beta decay of 130Te to the first 0+ excited state of 130Xe using a 9.8 kg center dot 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+0 nu>7.9 center dot 1023yr and T01+2 nu>2.4 center dot 1023yr (90%CL). Combining our results with those obtained by the CUORICINO experiment, we achieve the most stringent constraints available for these processes: T01+0 nu>1.4 center dot 1024yr and T01+2 nu>2.5 center dot 1023yr (90%CL).| File | Dimensione | Formato | |
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