2 papers
hep-ph2021
Dark Matter Freeze-out via Catalyzed Annihilation
Chuan-Yang Xing, Shou-Hua Zhu
We present a new paradigm of dark matter freeze-out, where the annihilation of dark matter particles is catalyzed. We discuss in detail the regime that the depletion of dark matter…
hep-ph2020
Softly shifting away from dark matter direct detection
Chuan-Yang Xing, Ling-Xiao Xu, Shou-hua Zhu
We propose soft breaking mechanism for dark matter (DM) shift symmetry in a class of composite dark matter models, where both DM and the Higgs boson arise as pseudo Nambu-Goldstone…