Gravitational waves from the minimal gauged $U(1{)}_{B-L}$ model

Abstract

An additional $U(1)$ gauge interaction is one of promising extensions of the standard model of particle physics. Among others, the $U(1{)}_{B-L}$ 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 $U(1{)}_{B-L}$ 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 which is detectable in future experiments.

15 pages, 4 figures, references and discussion added, the final journal published version. arXiv admin note: text overlap with arXiv:1807.00336

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Cited by in corpus (2)

• Implications for First-Order Cosmological Phase Transitions from the Third LIGO-Virgo Observing Run
• Gravitational Wave Imprints of Left-Right Symmetric Model with Minimal Higgs Sector