Bernabeu Alberola, José Perfil; Rújula, Álvaro de; Jarlskog, Cecilia | |||
This document is a artículoDate1983 | |||
Este documento está disponible también en : http://hdl.handle.net/10550/53250 |
|||
|
|||
A nucleus (Z, A) may capture two atomic electrons to become (Z − 2, A). For Majorana neutrinos this may occur with no neutrino emission, the process is a virtual mixing of the parent atom and the daughter atom with two electron holes. The process becomes real as the daughter atom de-excites. In some cases where the daughter nucleus is excited, the neutrinoless decay may be enhanced by its proximity to a virtual resonance. We identify the 112Sn → 112Cd transition as a good case. The no-neutrino lifetime for mν = 30 eV ranges from 1022 to 1027 years as a function of the insufficiently well determined distance to resonance. The signatures of the two- or no-neutrino modes are very different. | |||
Bernabeu Alberola, José; Rújula, Álvaro de; Jarlskog, Cecilia (1993) Neutrinoless double electron-capture as a tool to measure the electron neutrino mass Nuclear Physics B 223 1 15 28 |
|||
http://dx.doi.org/10.1016/0550-3213(83)90089-5 |