4 papers
Graviton energy spectra arising from the KSVZ axion model
Yonghua Wang, Lin-Yun He, Wei Chao +1
Axion, the goldstone boson arising from the spontaneous breaking of a global Peccei-Quinn symmetry, provides a dynamical solution to the strong CP problem and is an excellen…
Testing the type-II seesaw mechanism with gravitational waves
Yonghua Wang, Wei Chao
Traditional seesaw mechanisms provide an elegant theoretical framework for explaining the small yet non-zero masses of neutrinos. Nevertheless, they face significant experimental c…
Gravitational Wave Spectrum from the Production of Dark Matter via the freeze-in Mechanism
Yonghua Wang, Wei Chao
Since the first detection of gravitational waves by ground-based interferometers, it has emerged as a novel probe for exploring physics in the early universe. The particle nature o…
Axion-Inflation Baryogenesis via New U(1) gauge symmetries
Wei Chao, Yonghua Wang, Chenhui Xie
We investigate axion-inflation baryogenesis models, embedded into U(1) gauge symmetric extensions of the Standard Model (SM), in which the new gauge field couples to the pseudo-sca…