Two-neutrino double-weak decays of ${}^{126}$Xe and ${}^{134}$Xe from different many-body methods

C. Brase, L. Jokiniemi, E. Kauppinen +4

We calculate the nuclear matrix elements and corresponding half-lives for the two-neutrino double-electron capture of ${}^{126}$Xe and the two-neutrino double-beta decay of ${}^{134}$X…