Graviton loops and brane observables

被引：53

作者：

Contino, R

Pilo, L

Rattazzi, R

Strumia, A

机构：

[1] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[2] Ist Nazl Fis Nucl, Rome, Italy

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

[4] Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2001年 / 06期

关键词：

extra large dimensions; beyond standard model;

D O I：

10.1088/1126-6708/2001/06/005

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：

We discuss how to consistently perform effective Lagrangian computations in quantum gravity with branes in compact extra dimensions. A reparametrization invariant and infrared finite result is obtained in a non trivial way. It is crucial to properly account for brane fluctuations and to correctly identify physical observables. Our results correct some confusing claims in the literature. We discuss the implications of graviton loops on electroweak precision observables and on the muon g - 2 in models with large extra dimensions. We model the leading effects, not controlled by effective field theory, by introducing a hard momentum cut-off.

引用

页码：1 / 38

页数：39

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