Half-lives of proton emitters I, Cs, La, Eu and Ha nuclei using E-RMF densities

Abstract

We have studied the nuclear properties and life-time of few proton emitters in their ground state using spherical densities obtained from effective field theory motivated relativistic mean field formalism (E-RMF) for two recent parameter sets G3 and IOPB-I. We have found that these emitters have binding energy per nucleon near the iron peak but due to the inadequate number of neutrons, the Coulomb force cannot be compensated completely hence, the nucleus breaks down. Experimental Q-value is used for the calculate of proton emission half-life using WKB approximation. It is noticed that for suitable <em>l</em>-values our results meet the experimental half-lives. This study enhances our understanding on the nuclear force and shell structure in the drip line region.