3 papers
hep-ph2026
High-frequency gravitational waves from axion inflation in the weak-backreaction regime
Xun-Jie Xu, Junyu Zhu
Axion inflation, characterized by a Chern-Simons interaction between the inflaton and a gauge field, provides a powerful mechanism for generating primordial gravitational waves (GW…
hep-ph2025
Full-Spectrum Analysis of Gravitational Wave Production from Inflation to Reheating
Xun-Jie Xu, Yong Xu, Qiqin Yin +1
In this work, we systematically study gravitational wave (GW) production during both the inflationary and post-inflationary epochs. While inflationary GWs can be readily derived fr…
hep-ph2023
The -philic scalar dark matter
Xun-Jie Xu, Siyu Zhou, Junyu Zhu
Right-handed neutrinos () offer an intriguing portal to new physics in hidden sectors where dark matter (DM) may reside. In this work, we delve into the simplest hidden sect…