ar X iv : h ep - p h / 97 09 49 5 v 1 2 9 Se p 19 97 1 Determination of M b and α s from the Upsilon System
نویسنده
چکیده
The mass of the bottom quark (both the pole mass M b and the M S mass m b) and the strong coupling constant αs have been determined [1] from QCD moment sum rules for the Υ system. In the pole–mass scheme large perturbative corrections resulting from coulombic contributions have been resummed. The results of this analysis are: M b = 4.60 ± 0.02 GeV, m b (m b) = 4.13 ± 0.06 GeV and αs(MZ) = 0.119 ± 0.008.
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تاریخ انتشار 1997