Solutions to the strong CP problem in a world with gravity
High Energy Physics - Phenomenology
2010-11-01 v1
Abstract
We examine the sensitivity of several solutions of the strong-CP problem to violations of global symmetries by Planck scale physics. We find that the Peccei-Quinn solution is extremely sensitive to U(1)_PQ violating operators of dimension less than 10. We construct models in which the PQ symmetry is protected by gauge symmetries to the requisite level.
Cite
@article{arxiv.hep-ph/9203206,
title = {Solutions to the strong CP problem in a world with gravity},
author = {R. Holman and S. D. H. Hsu and T. Kephart and E. Kolb and R. Watkins and L. Widrow},
journal= {arXiv preprint arXiv:hep-ph/9203206},
year = {2010}
}
Comments
10 pages