%0 Journal Article
%T Spontaneous Breaking of Lepton Number and the Cosmological Domain Wall Problem
%A Lazarides, G.
%A Reig, M.
%A Shafi, Q.
%A Srivastava, R.
%A Valle, J. W. F.
%J Physical Review Letters
%D 2019
%V 122
%N 15
%I Amer Physical Soc
%@ 0031-9007
%G English
%F Lazarides_etal2019
%O WOS:000464756200002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3985), last updated on Wed, 22 May 2019 10:38:10 +0000
%X We show that if global lepton number symmetry is spontaneously broken in a postinflation 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 that allow spontaneous lepton number breaking to be safe from such domain walls.
%R 10.1103/PhysRevLett.122.151301
%U https://arxiv.org/abs/1806.11198
%U https://doi.org/10.1103/PhysRevLett.122.151301
%P 151301-5pp