2000/09/29 by S. Collins, Collins, S.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #hep-lat
paper · pdf · doi:10.48550/arxiv.hep-lat/0009040
3 pages, talk presented at the 4th International conference on ``Quark Confinement and the Hadron Spectrum'' on 3rd-8th July, 2000 in Vienna, Austria. Replacement to correct typo in table 2
arxiv created 2000/10/09 · arxiv updated 2009/11/30
We present results for the mass of the b quark in the MS scheme obtained by calculating the binding energy of the B meson in the static limit. The self energy of a static quark, E0^∞ needed for this purpose, is now known to O(α3) in the quenched approximation. We find a \it preliminary value of mb(mb)=4.34(7) GeV at nf=0. The error is dominated by the remaining uncertainty in E0^∞. In addition, using E0^∞ at O(α2), we estimate that the quark mass is reduced by approximately 70 MeV when two flavours of dynamical quarks are introduced.