First Lattice Study of Semileptonic Decays of Lambda_b and Xi_b Baryons

Details First Lattice Study of Semileptonic Decays of Lambda_b and Xi_b Baryons First Lattice Study of Semileptonic Decays of Lambda_b and Xi_b Baryons

1997-09-11

arxiv.org/abs/hep-lat/9709028v1

Phys.Rev.D57:6948-6974,1998

Physics

High Energy Physics

High Energy Physics - Lattice

55 pages, 17 ps figures, Latex 2.09, uses epsf

Scientific paper

10.1103/PhysRevD.57.6948

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.

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