4 papers
Leptophilic scalar dark matter in U(1): Evading direct detection and prospective neutron star heating
Chengfeng Cai, Hong-Hao Zhang
Leptophilic dark matter (DM) is a well-motivated thermal weakly interacting massive particle framework that can evade stringent nuclear-recoil searches while remaining testable via…
Interpreting the KM3-230213A PeV Neutrino Event via Vector Dark Matter Decay and Its Multi-Messenger Signatures
Yu-Hang Su, Si-Yu Chen, Chengfeng Cai +1
The KM3NeT Collaboration recently reported the detection of an ultra-high-energy neutrino event KM3-230213A with a reconstructed energy of PeV, the most energet…
Constraining the Secluded and Catalyzed Annihilation Dark Matter with Fermi-LAT and Planck Data
Yu-Hang Su, Chengfeng Cai, Hong-Hao Zhang
We propose a dark matter (DM) model with a complex scalar charged under a hidden gauge symmetry, denoted as . The scalar field is the DM candidate while the gauge…
General Discussions on the SU(2) Vector Boson Dark Matter Model with a Single Higgs Multiplet -- Lagrangian, Discrete Subgroups, and Scalar Classifications
Chun-Xue Yuan, Zhao Zhang, Chengfeng Cai +2
The vector boson dark matter particles which stem from some broken gauge symmetries usually requires some unbroken symmetries to keep themselves stable. In the previous literature,…