Looking for TeV-scale strings and extra-dimensions

被引：112

作者：

Accomando, E ^{[1
]}

Antoniadis, I

Benakli, K

机构：

[1] Texas A&M Univ, Ctr Theoret Phys, College Stn, TX 77843 USA

[2] Ecole Polytech, Ctr Phys Theor, F-91128 Palaiseau, France

[3] CERN, Div Theory, CNRS, Unite Mixte, CH-1211 Geneva 23, Switzerland

[4] CERN, Div Theory, EP, UMR 7644, CH-1211 Geneva 23, Switzerland

来源：

NUCLEAR PHYSICS B | 2000年 / 579卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0550-3213(00)00123-1

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：

In contrast to the old heterotic string case, the (weakly coupled) type I brane framework allows to have all, part or none of the standard model gauge group factors propagating in large extra-dimensions of TeV-1 size. We investigate the main experimental signatures of these possibilities, related to the production of Kaluza-Klein excitations of gluons and electroweak gauge bosons. A discovery through direct observation of resonances is possible only for compactification scales below 6 TeV. However effects due to exchange of virtual Kaluza-Klein excitations could be observed for higher scales. We find that LHC can probe compactification scales as high as 20 TeV for excitations of gluons and 8-15 TeV for excitations of electroweak gauge bosons. Finally, in the case where no gauge boson feels the extra-dimension, we find that effective contact interactions due to massive string mode oscillations dominate those due to the exchange of Kaluza-Klein excitations of gravitons and could be used to obtain bounds on the string scale. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：3 / 16

页数：14

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