Anomalous coupling of scalars to gauge fields
High Energy Physics - Theory
2011-06-07 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
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 frame, this gives rise to a direct coupling between the scalar and the gauge fields.
Cite
@article{arxiv.1010.4536,
title = {Anomalous coupling of scalars to gauge fields},
author = {Philippe Brax and Clare Burrage and Anne-Christine Davis and David Seery and Amanda Weltman},
journal= {arXiv preprint arXiv:1010.4536},
year = {2011}
}
Comments
5 pages. v2: minor changes, matches version published in PLB