74 citations · 146 across the 14 of their papers we have counts for
4 papers · 2 filters
Cancellation mechanism of dark matter direct detection in Higgs-portal and vector-portal models
Chengfeng Cai, Yu-Pan Zeng, Hong-Hao Zhang
We present two alternative proofs for the cancellation mechanism in the U(1) symmetric pseudo-Nambu-Goldstone-Boson Dark Matter (pNGB DM) model. They help us to have a better under…
Vector dark matter production from catalyzed annihilation
Chengfeng Cai, Hong-Hao Zhang
We provide a simple model of vector dark matter (DM) which can realize the recently proposed freeze-out mechanism with catalyzed annihilation. In our setup, a vector DM field …
Vector dark matter from split SU(2) gauge bosons
Zexi Hu, Chengfeng Cai, Yi-Lei Tang +2
We propose a vector dark matter model with an exotic dark SU(2) gauge group. Two Higgs triplets are introduced to spontaneously break the symmetry. All of the dark gauge bosons bec…
Phase transition gravitational waves from pseudo-Nambu-Goldstone dark matter and two Higgs doublets
Zhao Zhang, Chengfeng Cai, Xue-Min Jiang +3
We investigate the potential stochastic gravitational waves from first-order electroweak phase transitions in a model with pseudo-Nambu-Goldstone dark matter and two Higgs doublets…