Top quark pair production and decay at hadron colliders

被引：204

作者：

Bernreuther, W ^{[1
]}

Brandenburg, A

Si, ZG

Uwer, P

机构：

[1] Rhein Westfal TH Aachen, Inst Theoret Phys, D-52056 Aachen, Germany

[2] DESY Theorie, D-22603 Hamburg, Germany

[3] Shandong Univ, Dept Phys, Jinan 250100, Peoples R China

[4] Univ Karlsruhe, Inst Theret Teilchenphy, D-76128 Karlsruhe, Germany

[5] CERN, Dept Phys, Div TH, CH-1211 Geneva 23, Switzerland

来源：

NUCLEAR PHYSICS B | 2004年 / 690卷 / 1-2期

关键词：

Hadron collider physics; top quarks; QCD corrections; spin correlations;

D O I：

10.1016/j.nuclphysb.2004.04.019

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：

In ongoing and upcoming hadron collider experiments, top quark physics will play an important role in testing the Standard Model and its possible extensions. In this work we present analytic results for the differential cross sections of top quark pair production in hadronic collisions at next-to-leading order in the QCD coupling, keeping the full dependence on the spins of the top quarks. These results are combined with the corresponding next-to-leading order results for the decay of polarized top quarks into dilepton, lepton plus jets, and all jets final states. As an application we predict double differential angular distributions which are due to the QCD-induced top quark spin correlations in the intermediate state. In addition to the analytic results, we give numerical results in terms of fit functions that can easily be used in an experimental analysis. (C) 2004 Elsevier B.V All rights reserved.

引用

页码：81 / 137

页数：57

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