3 papers
hep-ph2024
LHC-friendly freeze-in dark matter via Higgs portal
Xinyue Yin, Shuai Xu, Sibo Zheng
It is known that single-field freeze-in dark matter barely leaves footprints in dark matter direct detection and collider experiments. This situation can be altered in two-field co…
hep-ph2023
Self-interacting dark matter to freeze-in via vector portal
Xinyue Yin, Shuai Xu, Sibo Zheng
It is challenging to resolve the small-scale problem for dark matter being a weakly-interacting massive particle. We attempt to address this issue by proposing a self-interacting f…
hep-ph2023
Freeze-in Dark Matter via Lepton Portal: Hubble Tension and Stellar Cooling
Zixuan Xu, Shuai Xu, Ruopeng Zhang +1
We propose a new freeze-in dark matter candidate which feebly couples to the standard model charged leptons. The feeble interactions allow it (i) to freeze-in from the Standard Mod…