Publication: Search for the double-beta decay of 82Se to the excited states of 82Kr with NEMO-3
Дата
2020
Авторы
Arnold, R.
Augier, C.
Barabash, A. S.
Basharina-Freshville, A.
Brudanin, V.
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Volume Title
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Аннотация
© 2020 Elsevier B.V.The double-beta decay of 82Se to the 01 + excited state of 82Kr has been studied with the NEMO-3 detector using 0.93 kg of enriched 82Se measured for 4.75 y, corresponding to an exposure of 4.42 kg⋅y. A dedicated analysis to reconstruct the γ-rays has been performed to search for events in the 2e2γ channel. No evidence of a 2νββ decay to the 01 + state has been observed and a limit of T1/2 2ν(Se82,0gs +→01 +)>1.3×1021y at 90% CL has been set. Concerning the 0νββ decay to the 01 + state, a limit for this decay has been obtained with T1/2 0ν(Se82,0gs +→01 +)>2.3×1022y at 90% CL, independently from the 2νββ decay process. These results are obtained for the first time with a tracko-calo detector, reconstructing every particle in the final state.
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Цитирование
Search for the double-beta decay of 82Se to the excited states of 82Kr with NEMO-3 / Arnold, R. [et al.] // Nuclear Physics A. - 2020. - 996. - 10.1016/j.nuclphysa.2020.121701
URI
https://www.doi.org/10.1016/j.nuclphysa.2020.121701
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https://openrepository.mephi.ru/handle/123456789/20209
https://www.scopus.com/record/display.uri?eid=2-s2.0-85078494158&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000519669400015
https://openrepository.mephi.ru/handle/123456789/20209