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      Spontaneous Breaking of Lepton Number and Cosmological Domain Wall Problem

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          Abstract

          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.

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          Author and article information

          Journal
          28 June 2018
          Article
          1806.11198

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          Custom metadata
          IFIC-18-XXX
          7 pages
          hep-ph astro-ph.CO

          Cosmology & Extragalactic astrophysics, High energy & Particle physics

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