We report on a recent computation of the form factors in semi-leptonic decays of the Bs using Heavy Quark Effective Theory (HQET) formalism applied on the lattice. The connection of the form factors with the 2-point and 3-point correlators on the lattice is explained, and the subsequent non-perturbative renormalization of HQET and it's matching to Nf=2 QCD is outlined. The results of the (static) leading-order calculation in the continuum limit is presented.
@article{arxiv.1701.03923,
title = {Form factors in the $\mathrm{B}_\mathrm{s} \rightarrow \mathrm{K} \ell \nu$ decays using HQET and the lattice},
author = {Debasish Banerjee},
journal= {arXiv preprint arXiv:1701.03923},
year = {2017}
}
Comments
On behalf on the ALPHA collaboration. Proceedings contribution to 34th annual International Symposium on Lattice Field Theory