TY  - JOUR
AU  - Lazarides, G.
AU  - Reig, M.
AU  - Shafi, Q.
AU  - Srivastava, R.
AU  - Valle, J. W. F.
PY  - 2019
DA  - 2019//
TI  - Spontaneous Breaking of Lepton Number and the Cosmological Domain Wall Problem
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 151301
EP  - 5pp
VL  - 122
IS  - 15
PB  - Amer Physical Soc
AB  - 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.
SN  - 0031-9007
UR  - https://arxiv.org/abs/1806.11198
UR  - https://doi.org/10.1103/PhysRevLett.122.151301
DO  - 10.1103/PhysRevLett.122.151301
LA  - English
N1  - WOS:000464756200002
ID  - Lazarides_etal2019
ER  -