DOES THE W-MASS RECONSTRUCTION SURVIVE QCD EFFECTS

被引：108

作者：

SJOSTRAND, T ^{[1
]}

KHOZE, VA ^{[1
]}

机构：

[1] UNIV DURHAM,DEPT PHYS,DURHAM DH1 3LE,ENGLAND

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.72.28

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the hadronic decay mode of a pair of W bosons, e+e- --> W+W- --> q1q2q3q4BAR, QCD interference effects can mix up the two color singlets q1q2BAR and q3q4BAR, i.e., produce hadrons that cannot be uniquely assigned to either of W+ and W-. We show that interference is negligible for energetic perturbative gluon emission, and develop models to help us to estimate the nonperturbative effects. The total contribution to the systematic error on the W mass reconstruction may be as large as 40 MeV.

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页码：28 / 31

页数：4

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