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

TL;DR

This paper calculates the semileptonic decay form factors of doubly charmed baryons involving c→s,d transitions, confirming heavy quark symmetry and aligning with previous studies for certain channels.

Contribution

It provides the first comprehensive analysis of these decays, consistent with heavy quark spin symmetry and extending previous limited theoretical work.

Findings

Form factors agree with heavy quark symmetry constraints.

Results are consistent with previous calculations for known channels.

Offers new predictions for unstudied decay channels.

Abstract

We evaluate exclusive semileptonic decays of ground-state spin-1/2 doubly heavy charmed baryons driven by a $c\to s,d$ transition at the quark level. Our results for the form factors are consistent with heavy quark spin symmetry constraints which are valid in the limit of an infinitely massive charm quark and near zero recoil. Only a few exclusive semileptonic decay channels have been theoretically analyzed before. For those cases we find that our results are in a reasonable agreement with previous calculations.