Abstract
We present a general scheme of a shell-model analysis of a -delayed proton emission. We show that the experimental proton to -ray branching ratio for the isobaric analog state (IAS) populated in decay of a precursor, supplemented by theoretical proton and -ray widths, can be used to extract spectroscopic factors for isospin-forbidden proton emission. In the case of a well-justified two-level mixing approximation and a relatively well known spectroscopic factor of the admixed state, the proposed scheme provides a new way to determine the amount of the isospin mixing in the IAS. This conjecture is illustrated by the theoretical analysis of and decay.
- Received 25 September 2015
- Revised 24 March 2017
DOI:https://doi.org/10.1103/PhysRevC.95.054301
©2017 American Physical Society