Universality limits on bulk fermions

被引：54

作者：

del Aguila, F ^{[1
]}

Santiago, J ^{[1
]}

机构：

[1] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain

来源：

PHYSICS LETTERS B | 2000年 / 493卷 / 1-2期

关键词：

field theories in higher dimensions; beyond the standard model; quark masses and mixings;

D O I：

10.1016/S0370-2693(00)01110-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Kaluza-Klein fermion excitations induce mixing between the Standard Model fermions and loss of universality. The flavour mixing not present in the Standard Model can be made to vanish aligning the Yukawa couplings and the Dirac masses of the heavy modes, but universality is only recovered when these masses go to infinity. This implies a bound on the lightest new heavy quark, M-1 greater than or similar to 3-5 TeV, which together with the electroweak precision data limits will allow the large hadron collider to provide a crucial test of the Randall-Sundrum ansatz for solving the gauge hierarchy. (C) 2000 Published by Elsevier Science B.V.

引用

页码：175 / 181

页数：7

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