Short-distance mass of a heavy quark at order αS3

被引:162
|
作者
Chetyrkin, KG
Steinhauser, M
机构
[1] Univ Karlsruhe, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany
[2] Univ Bern, Inst Theoret Phys, CH-3012 Bern, Switzerland
关键词
D O I
10.1103/PhysRevLett.83.4001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The relation between the on-shell quark mass and the mass defined in the modified minimal subtraction scheme is computed up to order alpha(s)(3) using conformal mapping and Pade approximation. Implications for the numerical values of the top and bottom quark masses are discussed. We show that the new three-loop correction significantly reduces the theoretical uncertainty in the determination of the quark masses.
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页码:4001 / 4004
页数:4
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