Constraining Disformally Coupled Scalar Fields
Cosmology and Nongalactic Astrophysics
2014-11-11 v2 High Energy Physics - Phenomenology
Abstract
Light scalar fields can naturally couple disformally to matter fields. Static, non-relativistic sources do not generate a classical field profile for a disformally coupled scalar, and so such scalars are free from the constraints on the existence of fifth forces that are so restrictive for conformally coupled scalars. In this work we show that disformally coupled scalars can still be studied and constrained through their microscopic interactions with fermions and photons, both in terrestrial laboratories and from observations of stars. The strongest constraint on the coupling scale comes from mono-photon searches at the LHC and requires .
Cite
@article{arxiv.1407.1861,
title = {Constraining Disformally Coupled Scalar Fields},
author = {Philippe Brax and Clare Burrage},
journal= {arXiv preprint arXiv:1407.1861},
year = {2014}
}
Comments
29 pages, 9 figures, 1 table. v2 typos corrected and references added