Phys.Rev. C 103, 024326 (2021)

E.Litvinova, C.Robin

Impact of complex many-body correlations on electron capture in thermally excited nuclei around ⁷⁸Ni

NUCLEAR STRUCTURE ^76,78,80Ni, ⁷⁶Fe, ⁸⁰Zn; calculated Gamow-Teller GT₊ spectra, electron capture rates as a function of temperature from T=0 to 2.0 MeV, and electron density using finite-temperature proton-neutron relativistic random phase approximation (FT-pnRRPA) and finite-temperature proton-neutron relativistic time blocking approximation (FT-pnRTBA). Comparison of electron capture rates to thermal quasiparticle random phase approximation (TQRPA) calculations. Discussed role of complex nuclear correlations in stellar electron capture process for the nuclei around ⁷⁸Ni

doi: 10.1103/PhysRevC.103.024326