alpha particle momentum distributions from 12C decaying resonances

TL;DR

This paper calculates alpha particle momentum distributions from low-lying $^{12}$C resonances using a complex scaled hyperspherical adiabatic expansion method, emphasizing the importance of accurately modeling wave functions at large distances.

Contribution

It introduces a detailed computational approach for decay wave functions of $^{12}$C resonances, highlighting the significance of large-distance wave function accuracy.

Findings

Energy distributions for different states are characterized.

Angular distributions and Dalitz plots are analyzed.

The method improves understanding of decay mechanisms.

Abstract

The computed $\alpha$ particle momentum distributions from the decay of low-lying $^{12}$C resonances are shown. The wave function of the decaying fragments is computed by means of the complex scaled hyperspherical adiabatic expansion method. The large-distance part of the wave functions is crucial and has to be accurately calculated. We discuss energy distributions, angular distributions and Dalitz plots for the $4^+$, $1^+$ and $4^-$ states of $^{12}$C.