Anomalous coupling of scalars to gauge fields

被引：40

作者：

Brax, Philippe ^{[2
]}

Burrage, Clare ^{[3
,4
]}

Davis, Anne-Christine ^{[5
]}

Seery, David ^{[1
]}

Weltman, Amanda ^{[6
]}

机构：

[1] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England

[2] CNRS, Inst Phys Theor, CEA, IPhT,URA 2306, F-91191 Gif Sur Yvette, France

[3] Univ Geneva, Dept Phys Theor, CH-1211 Geneva, Switzerland

[4] DESY, Theory Grp, D-22603 Hamburg, Germany

[5] Ctr Math Sci, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England

[6] Univ Cape Town, Dept Math & Appl Math, Astron Cosmol & Grav Ctr, ZA-7700 Rondebosch, South Africa

来源：

PHYSICS LETTERS B | 2011年 / 699卷 / 1-2期

基金：

英国科学技术设施理事会;

关键词：

Dark energy; Modified gravity; Anomalies in quantum field theory;

D O I：

10.1016/j.physletb.2011.03.047

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the transformation properties of a scalar-tensor theory, coupled to fermions, under the Weyl rescaling associated with a transition from the Jordan to the Einstein frame. We give a simple derivation of the corresponding modification to the gauge couplings. After changing frames, this gives rise to a direct coupling between the scalar and the gauge fields. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：5 / 9

页数：5

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