Top quark spin correlations in theories with large extra dimensions at the CERN Large Hadron Collider -: art. no. 115015

被引：35

作者：

Arai, M ^{[1
]}

Okada, N

Smolek, K

Simák, V

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 18221 8, Czech Republic

[2] KEK, Div Theory, Tsukuba, Ibaraki 3050801, Japan

[3] Czech Tech Univ, Inst Expt & Appl Phys, Prague 12800 2, Czech Republic

[4] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague 1, Czech Republic

来源：

PHYSICAL REVIEW D | 2004年 / 70卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.70.115015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In theories with large extra dimensions, we study the top-spin correlations at the Large Hadron Collider. The s-channel process mediated by graviton Kaluza-Klein modes contributes to the top-antitop pair production in addition to the standard model processes, and affects the resultant top-spin correlations. We calculated the full density matrix for the top-antitop pair production. With the fundamental scale of the extra dimensional theory below 2 TeV, we find a sizable deviation of the top-spin correlations from the standard model one.

引用

页码：115015 / 1

页数：9

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