Proton Radioactivity of Heavy Nuclei of Atomic Number Range 72 < Z < 88

Abstract

We have studied proton radioactivity of heavy nuclei of atomic number range 72 < Z < 88. We have calculated the energy released during the proton decay (QP) and half-lives of proton decay. To study the competition between different decay modes, we have compared the proton decay half lives with that of the decay modes such as alpha decay, beta decay, cluster decay and spontaneous fission. To check the Geiger–Nuttall law for proton decay, we have plotted the logarithmic proton decay half-lives versus 1/sqrt(Q). We have also highlighted possible proton emitters with the corresponding energies and half-lives in the atomic number range 72 < Z < 88.