Speaker
Gabriela Bailas (*)
(KEK)
Description
We report our estimation for the Isgur-Wise form factors for the inclusive semileptonic $B \to X_c \ell\nu$ on 2+1-flavor lattice QCD.
The M\"obius domain-wall fermion action is used for light, strange, charm and bottom quarks. The structure function receives contributions from various exclusive modes, including the dominant S-wave states $D^{(*)}_s$ as well as the P-wave states $D_s^{**}$. In this work, we identify and separate these contributions in the lattice data, from
which we put some constraints on the $B_s \to D_s^{**}\ell\nu$ form factors. Our work takes into account the structure functions for the cases of zero-recoil and non-zero recoil.
Primary author
Gabriela Bailas (*)
(KEK)
