L. Serafini

Nov 30, 2024 | sciencedirect.com | Xu Xu |L. Serafini |S. Samsam |Pei-Yao Yang

Double-beta decay was originally introduced by Maria Goeppert-Mayer [1] (following the suggestion of Eugene Wigner) as a nuclear disintegration of a parent nucleus with simultaneous emission of two electrons and two neutrinos, and change of the atomic number of a daughter nucleus by two units (Z,A)→(Z+2,A)+2e−+2ν̄eThere are four possible double-beta decay processes: 2β−, 2β+, ϵβ+, 2ϵ and several major decay modes: two-neutrino (2ν), neutrinoless (0ν) and Majoron emission (0νJ).