Nuclear gamma-transitions via the accompanying atomic excitations

Abstract

The nuclearγ-transitions via excitation of the atomic electrons (electronic bridges) is considered in the framework of the strong coupling channels method. The nuclearM4 transitions from the lowest isomeric level of nuclei93Nb and193Ir in the both mechanisms of elastic and inelastic electronic bridges are investigated. The comparison between the semiclassical and selfconsistent Dirac-Hartree-Fock-Slater calculations is presented. The derived valuesκ f of a relative probability of nuclearγ-transition via the atomic excitation (inelastic electronic bridge)κ f(93Nb)=6.9·10−2 andκ f(193Ir)=1.4·10−2 are in agreement with the experimental data.