We study the B→Kl+l− semileptonic decay process in three-flavor lattice QCD. We analyze several ensembles generated by the MILC collaboration at different lattice spacings and sea-quark masses. We use the asqtad improved staggered action for the light quarks and the clover action with the Fermilab interpretation for the heavy b quark. We present preliminary results for the vector current induced form factors for a range of kaon energies. Our analysis includes chiral and continuum extrapolations based on SU(2) staggered \chi PT.
@article{arxiv.1111.0981,
title = {Form factors for $B$ to $Kll$ semileptonic decay from three-flavor lattice QCD},
author = {Ran Zhou and Jon A. Bailey and Alexei Bazavov and Aida X. El-Khadra and Steven Gottlieb and Rajendra D. Jain and Andreas S. Kronfeld and Ruth S. Van de Water and Fermilab Lattice and MILC Collaborations},
journal= {arXiv preprint arXiv:1111.0981},
year = {2011}
}
Comments
7 pages, 4 figures, presented at The XXIX International Symposium on Lattice Field Theory - Lattice 2011, July 10-16, 2011, Squaw Valley, Lake Tahoe, California