Year: 2019
Type: article
Abstract: An additional $U(1)$ gauge interaction is one of the promising extensions of the standard model of particle physics. Among others, the $U(1{)}_{B\ensuremath{-}L}$ gauge symmetry is particularly interesting because it addresses the origin of Majorana masses of right-handed neutrinos, which naturally leads to tiny light neutrino masses through the seesaw mechanism. We show that, based on the minimal $U(1{)}_{B\ensuremath{-}L}$ model, the symmetry breaking of the extra $U(1)$ gauge symmetry with its minimal Higgs sector in the early universe can exhibit the first-order phase transition and hence generate a large enough amplitude of stochastic gravitational wave radiation that is detectable in future experiments.
Authors: Taiki Hasegawa, Nobuchika Okada, Osamu Seto
Institutions: Hokkaido University, University of Alabama
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2933189272