The proton radioactivity lifetimes of proton emitters from the ground and the isomeric states are calculated using the microscopic M3Y $+$ Ex and R3Y $+$ Ex (proposed) nucleon-nucleus interaction potentials. These interaction potentials are obtained by single folding the densities of the daughter nuclei supplemented by a zero-range pseudopotential. The quantum-mechanical-tunneling probability is calculated within the WKB approximation. The calculated results are found to be in good agreement with the experimental data for both the M3Y and R3Y interactions.

• Received 3 August 2011

DOI:https://doi.org/10.1103/PhysRevC.84.054604