Top quark pair production and decay at a polarized photon collider

被引：7
作者：
Brandenburg, A
Si, ZG [1 ]
机构：
[1] DESY, D-22603 Hamburg, Germany
[2] Shandong Univ, Dept Phys, Shandong 250100, Peoples R China
来源：
PHYSICS LETTERS B | 2005年 / 615卷 / 1-2期
关键词：
photon collider; top quarks; QCD corrections; polarization; spin correlations;
D O I：
10.1016/j.physletb.2005.04.003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Top quark pair production by (polarized) gamma gamma collisions offers an interesting testing ground of the Standard Model and its extensions. In this Letter we present results for differential cross sections of top quark pair production and decay including QCD radiative corrections. We take into account the full dependence on the top quark spins. We give analytic and numerical results for single and double differential angular distributions of tt decay products which are due to top quark polarizations and spin correlations in the intermediate state. (c) 2005 Elsevier B.V. All rights reserved.
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页码：68 / 78
页数：11
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