Strange quark mass dependence of the tau hadronic width

被引：29

作者：

Prades, J

Pich, A

机构：

[1] Univ Granada, Dept Fis Teor & Cosmos, E-18002 Granada, Spain

[2] Univ Valencia, Dept Fis Teor, IFIC, CSIC, E-46100 Burjassot, Spain

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1999年 / 74卷

关键词：

D O I：

10.1016/S0920-5632(99)00184-X

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The perturbative quark mass corrections to the tau hadronic width are studied to O(alpha(s)(3) m(q)(2)). Including up to dimension four corrections, we get m(s)(4 GeV2) = (143 +/- 42) MeV [m(s)(1 GeV2) = (193 +/- 59) MeV]. Possible improvements to reduce the theoretical uncertainty are pointed out.

引用

页码：309 / 312

页数：4

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