Primordial Magnetic Fields and the Peccei-Quinn Scale
Astrophysics
2007-05-23 v1
Abstract
A strong primordial magnetic field can induce a relaxation of the present bound on the PQ-constant. We show that, considering the present limits on primordial magnetic fields, a value for the PQ-constant very close to the GUT scale is not excluded. This result naturally opens the possibility for the axion to be defined in the context of the GUT theories.
Cite
@article{arxiv.astro-ph/0611207,
title = {Primordial Magnetic Fields and the Peccei-Quinn Scale},
author = {Leonardo Campanelli and Maurizio Giannotti},
journal= {arXiv preprint arXiv:astro-ph/0611207},
year = {2007}
}
Comments
4 pages, 1 figure