Heavy Quark Masses from the $Q\bar Q$ Threshold and the Upsilon Expansion

Details Heavy Quark Masses from the $Q\bar Q$ Threshold and the Upsilon Expansion Heavy Quark Masses from the $Q\bar Q$ Threshold and the Upsilon Expansion

1999-09-14

arxiv.org/abs/hep-ph/9909356v1

Nucl.Phys.Proc.Suppl.86:512-516,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, latex (espcrc2_my.sty), 6 postscript figures. Talk presented at the International Euroconference QCD'99, Montpellier,

Scientific paper

10.1016/S0920-5632(00)00613-7

Recent results from studies using half the perturbative mass of heavy quark-antiquark n=1, ${}^3S_1$ quarkonium as a new heavy quark mass definition for problems where the characteristic scale is smaller than or of the same order as the heavy quark mass are reviewed. In this new scheme, called the 1S mass scheme, the heavy quark mass can be determined very accurately, and many observables like inclusive B decays show nicely converging perturbative expansions. Updates on results using the 1S scheme due to new higher order calculations are presented.

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