A non-perturbative calculation of the mass of the Bc

Abstract

We present a calculation of the mass of the 1S0 pseudoscalar anti-b c (Bc) state using a non-perturbative measurement from quenched lattice QCD. We find M_Bc = 6.386(9)(98)(15) GeV where the first error is statistical, the second systematic due to the quark mass ambiguities and quenching and the third the systematic error due to the estimation of mass of the eta_b.

arXiv comment11 pages, LaTeX2e, uses a4wide.sty, 12pt.sty, epsf.sty, 1 postscript figure. Submitted for publication in Physics Letters B

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