Charm effects in the (MS)over-bar bottom quark mass from γ mesons

被引：19

作者：

Hoang, AH ^{[1
]}

Manohar, AV

机构：

[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

PHYSICS LETTERS B | 2000年 / 483卷 / 1-3期

关键词：

D O I：

10.1016/S0370-2693(00)00595-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the shift in the Y mass due to a non-zero charm qusrk mass. This shift affects the value of the <(MS)over bar> b-quark mass extracted from the Y system by about - 20 MeV, due to an incomplete cancellation of terms that are non-analytic in the charm quark mass. The precise size of the shift depends on unknown higher order corrections, and might have a considerable uncertainty if they are large. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：94 / 98

页数：5

共 14 条

[1] RESUMMATION OF (BETA-0-ALPHA(S))(N) CORRECTIONS IN QCD - TECHNIQUES AND APPLICATIONS TO THE TAU-HADRONIC WIDTH AND THE HEAVY-QUARK POLE MASS [J].