Precise determination of the W tb couplings at the CERN Large Hadron Collider -: art. no. 014009

被引：47

作者：

del Aguila, F ^{[1
]}

Aguilar-Saavedra, JA

机构：

[1] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain

[2] Inst Super Tecn, Dept Fis, P-1049001 Lisbon, Portugal

[3] Inst Super Tecn, CFIF, P-1049001 Lisbon, Portugal

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.67.014009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Top pair production at the CERN LHC is the ideal place to search for nonstandard Wtb couplings in t-->Wb-->lnub decays. The lb forward-backward asymmetry in the W rest frame is very sensitive to sigma(munu) couplings, and can spot one-loop QCD corrections to the decay vertex with more than 5sigma statistical significance. We discuss the potential of this asymmetry to signal nonstandard gamma(mu) and sigma(munu) couplings and compare with t (t) over bar spin correlation asymmetries, which have a lower sensitivity. We also briefly summarize the results for the Fermilab Tevatron.

引用

页数：5

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