NEW DETERMINATION OF THE BEAUTY-QUARK MASS

被引：46

作者：

DOMINGUEZ, CA

PAVER, N

机构：

[1] UNIV TRIESTE,DIPARTIMENTO FIS TEOR,I-34014 TRIESTE,ITALY

[2] IST NAZL FIS NUCL,SEZ TRIESTE,I-34100 TRIESTE,ITALY

来源：

PHYSICS LETTERS B | 1992年 / 293卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)91501-Y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Ratios of Laplace transform QCD sum rules, in the non-relativistic limit, are used in order to determine the on-shell beauty-quark mass. Next to leading quark mass corrections are found to be important, as they are of the same size as the leading nonperturbative contribution. After confronting with the experimental data in the upsilon system we obtain m(b) = 4.72 +/- 0.05 GeV. The error is due to uncertainties in the values of LAMBDA and the gluon condensate.

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页码：197 / 200

页数：4

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