Can Decaying Particles Raise the Upperbound on the Peccei-Quinn Scale?

M. Kawasaki(ICRR; T. Moroi (LBL; T. Yanagida (Dept.of Physics; UC Berkeley); Univ. of Tokyo)

arxiv: hep-ph/9510461 · v1 · submitted 1995-11-01 · ✦ hep-ph · astro-ph

Can Decaying Particles Raise the Upperbound on the Peccei-Quinn Scale?

M. Kawasaki(ICRR , Univ. of Tokyo) , T. Moroi (LBL , UC Berkeley) , T. Yanagida (Dept.of Physics This is my paper

classification ✦ hep-ph astro-ph

keywords particlesdecayingentropypeccei-quinnscaleallowedaxioncoherent

0 comments

read the original abstract

We have reexamine the effect of entropy production on the cosmic axion density and find that the Peccei-Quinn scale $F_a$ larger than about $10^{15}$~GeV is not allowed even if large entropy is produced by the decays of coherent oscillations or non-relativistic massive particles. We stress that this result is independent of the details of models for the decaying particles.

This paper has not been read by Pith yet.

discussion (0)

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

From Rags to Jeans: Axion Miniclusters from Early matter domination
hep-ph 2026-06 unverdicted novelty 7.0

Temperature-dependent axion mass fluctuations in early matter domination source order-unity axion overdensities by equality, yielding two distinct regions in the nonlinear spectrum and estimated minicluster masses.