Beta-decay study within multi-reference density functional theory and beyond
Abstract
Pioneering study of Gamow-Teller (GT) and Fermi matrix elements (MEs) using no-core-configuration-interaction formalism rooted in multi-reference density functional theory is presented. After successful test performed for 6He -> 6Li beta-decay, the model is applied to compute MEs in the sd- and pf-shell T=1/2 mirror nuclei. The calculated GT MEs and the isospin-symmetry-breaking corrections to the Fermi branch are found to be in a very good agreement with shell-model predictions in spite of fundamental differences between these models concerning model space, treatment of correlations or inclusion of a core. This result indirectly supports the two-body current based scenarios behind the quenching of axial-vector coupling constant.
Cite
@article{arxiv.1509.04480,
title = {Beta-decay study within multi-reference density functional theory and beyond},
author = {M. Konieczka and P. Baczyk and W. Satula},
journal= {arXiv preprint arXiv:1509.04480},
year = {2016}
}
Comments
5 pages, 6 figures