Alpha decay study of heavy and superheavy nuclei with energy and angular momentum dependent preformation factor

The preformation probability of an alpha particle [Formula: see text] in heavy nuclei is calculated within the framework of the Coulomb and Proximity Potential Model (CPPM). The dependence of the alpha particle preformation factor on the Q-value of the reaction and the angular momentum of the emitted alpha particle is investigated. Based on this, a simple empirical formula for [Formula: see text] is proposed. Using the preformation factor obtained from CPPM and the empirical formula, the alpha decay half-lives of heavy elements are calculated and performed a comparison with the experimental values. Excellent agreement between the experimental and the calculated values of alpha decay half-lives confirms the validity of our findings. Motivated by this, we have extended our study to the superheavy region. Using the empirical formula, we have calculated the alpha particle preformation factors of 65 superheavy elements whose experimental alpha decay half-lives are available. The alpha decay half-lives are then calculated using these preformation factors and compared with the experimental values. Further, the alpha decay characteristics of [Formula: see text]119–126 superheavy elements are obtained by inputting the empirical preformation parameter in the CPPM. The inclusion of the preformation parameter improved the predictions of the CPPM considerably. Our study shows that the proposed empirical formula could predict the [Formula: see text] of heavy and superheavy regions with great accuracy.