Alpha Decay Width of $^{212}$Po from a quartetting wave function approach

TL;DR

This paper presents a microscopic calculation of alpha decay width in $^{212}$Po using a quartetting wave function approach, improving previous models by incorporating four-nucleon correlations and matching experimental data.

Contribution

It introduces an enhanced quartetting wave function method for calculating alpha decay widths, accounting for four-nucleon correlations in $^{212}$Po.

Findings

Calculated decay width agrees with experimental measurements.

Improved model incorporates actual density distribution of the $^{208}$Pb core.

Method advances understanding of alpha preformation in heavy nuclei.

Abstract

A microscopic calculation of $\alpha$-cluster preformation probability and $\alpha$ decay width in the typical $\alpha$ emitter $^{212}$Po is presented. Results are obtained by improving a recent approach to describe $\alpha$ preformation in $^{212}$Po [Phys. Rev. C 90, 034304 (2014)] implementing four-nucleon correlations (quartetting). Using the actually measured density distribution of the $^{208}$ Pb core, the calculated alpha decay width of $^{212}$Po agrees fairly well with the measured one.