1992/02/06 by Marc Kamionkowski, John March-Russell · 2 citations
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1016/0370-2693(92)90492-m
published as Phys.Lett. B282 (1992) 137-141 · 10pp
arxiv created 1992/02/06 · arxiv updated 2009/11/30
Global-symmetry violating higher-dimension operators, expected to be induced by Planck-scale physics, in general drastically alter the properties of the axion field associated with the Peccei-Quinn solution to the strong-CP problem, and render this solution unnatural. The particle physics and cosmology associated with other global symmetries can also be significantly changed.