Hyperfine mixing in electromagnetic decay of doubly heavy $bc$ baryons
High Energy Physics - Phenomenology
2014-11-20 v2 Nuclear Theory
Abstract
We investigate the role of hyperfine mixing in the electromagnetic decay of ground state doubly heavy baryons. As in the case of a previous calculation on semileptonic decays of doubly heavy baryons, we find large corrections to the electromagnetic decay widths due to this mixing. Contrary to the weak case just mentioned, we find here that one can not use electromagnetic width relations obtained in the infinite heavy quark mass limit to experimentally extract information on the admixtures in a model independent way.
Cite
@article{arxiv.1004.3154,
title = {Hyperfine mixing in electromagnetic decay of doubly heavy $bc$ baryons},
author = {C. Albertus and E. Hernández and J. Nieves},
journal= {arXiv preprint arXiv:1004.3154},
year = {2014}
}
Comments
9 Latex pages, 4 tables. A new reference added. A few misprints corrected