Constraints on Axion Models
Abstract
Two particular classes of axion models are presented, each one yielding a lower bound on the axion decay constant, based though on different considerations. In the first class only some, and not all, of the right-handed quarks have PQ charges, whereas in the second one the left-handed sector of the same quarks is taken into account as well. In the first case we find that bounds coming from astrophysics are significantly relaxed compared with those for the DFSZ. As for the second class, the astrophysical constraints proved to be less severe (with one exception), than those coming from FCNC processes.
Cite
@article{arxiv.hep-ph/9807372,
title = {Constraints on Axion Models},
author = {Mark Hindmarsh and Photis Moulatsiotis},
journal= {arXiv preprint arXiv:hep-ph/9807372},
year = {2009}
}
Comments
Talk given at the 5th IFT Workshop: Axions, U. of Florida, Gainesville, Florida, USA, 13-15 Mar 1998. Based on hep-ph/9708281 and hep-ph/9807363. 5pp, 1 eps fig, uses espcrc2 and graphics styles