Three-particle decays of light nuclei resonances

TL;DR

This paper investigates the three-particle decay mechanisms of light nuclei resonances 12C, 9Be, and 6Be using a three-body model and complex scaled hyperspherical adiabatic expansion, emphasizing the importance of accurate long-distance wave-function calculations for decay properties.

Contribution

It introduces a detailed three-body computational approach to analyze decay properties of light nuclei resonances, highlighting the role of long-distance wave-function components.

Findings

Angular distributions of 9Be and 6Be resonances are computed.

The decay energies are linked to the short-distance wave-function behavior.

Accurate long-distance wave-function calculations are crucial for observable decay properties.

Abstract

We have studied the three-particle decay of 12C, 9Be and 6Be resonances. These nuclei have been described as three-body systems by means of the complex scaled hyperspherical adiabatic expansion method. The short-distance part of the wave-function is responsible for the energies whereas the information related to the observable decay properties is contained at large distances, which must be computed accurately. As an illustration we show the results for the angular distribution of 9Be and 6Be resonances.