Torsion constraints in the Randall-Sundrum scenario

被引：15
作者：
Lebedev, O [1 ]
机构：
[1] Univ Sussex, Ctr Theoret Phys, Brighton BN1 9QJ, E Sussex, England
来源：
PHYSICAL REVIEW D | 2002年 / 65卷 / 12期
关键词：
D O I：
10.1103/PhysRevD.65.124008
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Torsion appears due to fermions coupled to gravity and leads to the strongest particle physics bounds on flat extra dimensions. In this work, I consider torsion constraints in the case of a warped extra dimension with brane and bulk fermions. From current data I obtain a 3sigma bound on the TeV-brane mass scale Lambda(pi)greater than or equal to2.2 (10) TeV for the anti-de Sitter curvature k=1(0.01) in (reduced) Planck units. If Dirac or light sterile neutrinos reside on the brane, the bound increases to 17 (78) TeV.
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