A non-perturbative computation of the B-meson decay constant and the b-quark mass in HQET

Abstract

A lattice computation of the B-meson decay constant and the mass of the b-quark to leading order in the heavy quark effective theory is presented. The involved renormalization problems are solved non-perturbatively, and the continuum limit is taken. In the quenched approximation the results reported here already offer an interesting numerical precision, which will be further improved in the near future.

Comments: Invited talk at International Europhysics Conference on High Energy Physics, EPS-HEP2003, 17-23 July 2003, Aachen, Germany, 5 pages, 7 figures, latex2e, uses epsfig, svjour and svepj