Deformed shell model results for two neutrino positron double beta decay of ${}^{74}$Se

Abstract

Half-lives $T_{1/2}^{2\nu }$ for two neutrino positron double beta decay modes ${\beta }^{+}$EC/ECEC are calculated for ${}^{74}$Se, a nucleus of current experimental interest, using deformed shell model based on Hartree-Fock states employing a modified Kuo interaction in (${}^2{p}_{3/2}$, ${}^1{f}_{5/2}$, ${}^2{p}_{1/2}$, ${}^1{g}_{9/2}$) space. The calculated half-life for the ECEC mode is $\sim 10^{26}$yr and it may be possible to observe this in the near future with improved sensitivity of experiments.

3 figures

References in corpus (9)

• Double Beta Decay, Majorana Neutrinos, and Neutrino Mass
• Disassembling the Nuclear Matrix Elements of the Neutrinoless double beta Decay
• Anatomy of nuclear matrix elements for neutrinoless double-beta decay
• The influence of pairing on the nuclear matrix elements of the neutrinoless double beta decays
• Two-neutrino double beta decay of deformed nuclei within QRPA with realistic interaction
• Shell-model calculations of two-neutrino double-beta decay rates of ${}^{48}$Ca with GXPF1A interaction
• Search for ${\beta }^{+}$EC and ECEC processes in ${}^{74}$Se
• Nuclear deformation and neutrinoless double-$\beta$ decay of ${}^{94,96}$Zr, ${}^{98,100}$Mo, ${}^{104}$Ru, ${}^{110}$Pd, ${}^{128,130}$Te and ${}^{150}$Nd nuclei in mass mechanism
• Coulomb shifts and shape changes in the mass 70 region

Cited by in corpus (5)

• Double beta decay experiments
• Generalized Seniority on Deformed Single-Particle Basis
• A Nuclear Structure Model for Double Charge-Exchange Processes
• Deformed shell model results for neutrinoless double beta decay of nuclei in A=60-90 region
• Deformed shell model results for two neutrino positron double beta decay of ${}^{84}$Sr