http://arxiv.org/abs/1806.11198
We show that if global lepton number symmetry is spontaneously broken in a post inflation epoch, then it can lead to the formation of cosmological domain walls. This happens in the well-known “majoron paradigm” for neutrino mass generation. We propose some realistic examples which allow spontaneous lepton number breaking to be safe from such domain walls.
G. Lazarides, M. Reig, Q. Shafi, et. al.
Mon, 2 Jul 18
12/70
Comments: 7 pages
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