Influence of graviton on top-antitop production at the LHC

被引：0
|
作者：
Smolek, Karel [1 ]
Arai, Masato [1 ]
Okada, Nobuchika [1 ]
Simak, Vladislav [1 ]
机构：
[1] Czech Tech Univ, Inst Expt & Appl Phys, Horska 3A-22, Prague 12800 2, Czech Republic
来源：
2007 EUROPHYSICS CONFERENCE ON HIGH ENERGY PHYSICS, PTS 1-12 | 2008年 / 110卷
关键词：
D O I：
10.1088/1742-6596/110/7/072040
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：
We examine the top quark production in the brane world scenario. We study two typical models - the model proposed by Arkani-Hamed, Dimopoulos and Dvali (ADD) and the model of Randall and Sundrum (RS). In addition to the Standard Model processes, there is a new contribution to the top-antitop pair production process mediated by graviton Kaluza-Klein modes in the s-channel. We calculated the density matrix for the top-antitop pair production including the new contribution. With a reasonable parameter choice, we find a sizable deviation of the top-antitop quark spin correlations from those in the Standard Model.
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页数：3
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