Electronic factors for K-shell-electron conversion probability and electron-positron pair formation probability in electric monopole transitions

This paper presents, in tabular form, the electronic factors Omega /sub K, pi/(Z,k) of the electric monopole transition probability associated with the internal conversion of an electron from the atomic K shell (IC;K) and with the internal pair formation (IPF;pi). The Omega /sub pi/ values are calculated by taking the nuclear Coulomb effects into account. The corrections to Omega /sub K/ due to finite nuclear size and bound-state atomic screening are not included in the present calculations. The calculated ratio of the K-shell-electron conversion probability to the electron-positron pair formation probability is found to be in good agreement with the available experimental data for Z is equal to or less than 40.