Lepton number asymmetries and the lower bound on the reheating temperature [CEA]

http://arxiv.org/abs/1708.04899


We show that the reheating temperature of a matter-domination era in the early universe can be pushed down close to $1 \mathinner{\mathrm{MeV}}$ if the reheating takes place through non-hadronic decays of the dominant matter and neutrino-antineutrino asymmetries are still large enough, $|L| \gtrsim \mathcal{O}(10^{-2}-1)$ (depending on the neutrino flavor) at the end of reheating.

Read this paper on arXiv…

G. Barenboim and W. Park
Thu, 17 Aug 17
35/50

Comments: 6 pages, 2 figures