Speaker
Osamu Seto
(Hokkaido University)
Description
Some particle physics models with an additional U(1) gauge interaction are interesting because those address the origin of neutrino masses. We show that, in a wide class of models, such an extra U(1) gauge symmetry breaking in the early universe can be first-order phase transition and hence generate a detectable amplitude of stochastic gravitational wave radiation in future experiments. We also discuss parameter dependence and a possible UV completion.
Primary author
Osamu Seto
(Hokkaido University)
Co-author
Prof.
Okada Nobuchika
(University of Alabama)
