6533b853fe1ef96bd12acb50

RESEARCH PRODUCT

Exclusive $c\to s,d$ semileptonic decays of ground-state spin-1/2 and spin-3/2 doubly heavy $cb$ baryons

C. AlbertusE. Hern��ndezJ. Nieves

subject

High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics::PhenomenologyFOS: Physical sciencesHigh Energy Physics::ExperimentNuclear Experiment

description

We evaluate exclusive semileptonic decays of ground-state spin-1/2 and spin-3/2 doubly heavy $cb$ baryons driven by a $c\to s,d$ transition at the quark level. We check our results for the form factors against heavy quark spin symmetry constraints obtained in the limit of very large heavy quark masses and near zero recoil. Based on those constraints we make model independent, though approximate, predictions for ratios of decay widths.

10.1103/physrevd.85.094035http://arxiv.org/abs/1202.4861