Chaos assisted decay of $^{180}Ta^m$

TL;DR

This paper models the decay of the $^{180}Ta^m$ isomeric state using chaos assisted tunneling to explain enhanced decay under gamma irradiation or Coulomb excitation.

Contribution

It introduces a chaos assisted tunneling model to describe the decay process of the $^{180}Ta^m$ isomeric state, providing a novel theoretical approach.

Findings

Decay rate increases with gamma-ray irradiation

Coulomb excitation enhances decay probability

Model aligns with experimental observations

Abstract

The decay of the $J=9^-$ isomeric state in $^{180}Ta$ is described in a model based on the phenomenon of chaos assisted tunneling. The model attempts to explain the enhanced decay of the isomeric state when irradiated by gamma-rays or subjected to Coulomb excitations.