First Lattice Study of Semileptonic Decays of Lambda_b and Xi_b Baryons
High Energy Physics - Lattice
2009-10-09 v1 High Energy Physics - Phenomenology
Abstract
We present the results of the first lattice study of semileptonic decays of baryons containing a b-quark. Predictions for the decay distributions are given and the Isgur-Wise functions for heavy baryons are computed, for values of the velocity transfer up to about omega=1.2. The computations are performed on a 24^3 x 48 lattice at beta=6.2 using the Sheikholeslami-Wohlert action in the quenched approximation.
Keywords
Cite
@article{arxiv.hep-lat/9709028,
title = {First Lattice Study of Semileptonic Decays of Lambda_b and Xi_b Baryons},
author = {UKQCD Collaboration and K. C. Bowler and R. D. Kenway and L. Lellouch and J. Nieves and O. Oliveira and D. G. Richards and C. T. Sachrajda and N. Stella and P. Ueberholz},
journal= {arXiv preprint arXiv:hep-lat/9709028},
year = {2009}
}
Comments
55 pages, 17 ps figures, Latex 2.09, uses epsf