The semileptonic $B_s$ and ${\Lambda }_b$ widths

Abstract

We present estimates of the semileptonic widths of the $B_s$ and ${\Lambda }_b$ hadrons. We employ the latest fit to the $B$ inclusive semileptonic data, the heavy quark expansion and lattice QCD results. Our results suffer from large uncertainties that could be reduced with dedicated measurements and new lattice QCD calculations.

Contribution to the 11th International Workshop on the CKM Unitarity Triangle (CKM2021)