Effects of standard model Kaluza-Klein excitations on electroweak observables

被引：174

作者：

Masip, M ^{[1
]}

Pomarol, A

机构：

[1] CERN, European Lab Particle Phys, CH-1211 Geneva 23, Switzerland

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

来源：

PHYSICAL REVIEW D | 1999年 / 60卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.60.096005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The presence of an extra dimension of size R approximate to TeV-1 introduces a tower of Kaluza-Klein gauge boson excitations that affects the standard model relations between electroweak observables. The mixing BE the W and Z bosons with their excitations changes their masses and couplings to fermions. This effect depends on the Higgs field, which may live in the bulk of the extra dimension, on its boundary, or may be a combination of both types of fields. We use high-precision electroweak data to constrain 1/R. We find limits from 1 to 3 TeV from different observables, with a model-independent lower bound of 2.5 TeV. [S0556-2821(99)01021-8].

引用

页数：5

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