Abstract
Self-consistent random phase approximation (RPA) approaches in the relativistic framework are applied to calculate the isospin symmetry-breaking corrections for the superallowed transitions. It is found that the corrections are sensitive to the proper treatments of the Coulomb mean field, but not so much to specific effective interactions. With these corrections , the nucleus-independent values are obtained in combination with the experimental values in the most recent survey and the improved radiative corrections. It is found that the constancy of the values is satisfied for all effective interactions employed. Furthermore, the element and unitarity of the Cabibbo-Kobayashi-Maskawa matrix are discussed.
- Received 23 April 2009
DOI:https://doi.org/10.1103/PhysRevC.79.064316
©2009 American Physical Society