Empirical formulae with angular momentum dependence for exotic one and two proton emissions

Abstract

Recently, we reported a model independent and <i>l</i>-dependent four parameter formula which accounts very well for the half-lives of experimentally known one-proton emitters and also compares well with other model predictions. Later, the structure of the formula has been retained and fitted with two-proton half-lives predicted by the effective liquid drop model. With the new parameter set, the same form of the formula compared well with available experimental data on half-lives of two proton emitters as well as the predictions of ELDM. The formula has been applied to predict possible proton emitters in super heavy region. In this work, the application of these formulae is studied to predict the half-lives of one and two-proton emitters in the medium and heavy mass region ranging from 84 ≤ <i>Z</i> ≤ 100 and 37 ≤ <i>Z</i> ≤ 100, respectively.