6 papers
MeV Electrophilic Axion-like Particles from Sun
Shao-Feng Ge, Sk Jeesun, Tao Li
This work explores the production of an MeV-scale electrophilic axion-like particles (ALPs) by utilizing the monochromatic 5.5MeV photon resulting from the nuclear fusion processes…
Dark Parton Shower Effects for Cosmic Ray Boosted Dark Matter
Zirong Chen, Shao-Feng Ge, Jinmian Li +3
We investigate the dark parton shower effects in the direct detection of cosmic-ray boosted dark matter (CRDM), focusing on a dark photon-mediated model with fermionic dark matter-…
Relativistic Atomic Effects of Dark Matter Electron Scattering
Shao-Feng Ge, Jie Sheng, Chuan-Yang Xing
The dark matter scattering with atomic bound electrons is a crucial avenue for exploring the sub-GeV mass range. The commonly used factorization, where atomic effects are encoded i…
Nuclear Production and Analytic Attenuation of Energetic MeV Solar Dark Matter
Shao-Feng Ge, Jie Sheng, Chen Xia +1
We propose a solar production mechanism of MeV dark matter to overcome the energy threshold in direct detection experiments. In particular, the proton and deuteron fussion to ${}^3…
Search for Cosmic-ray Boosted Sub-MeV Dark-Matter-Electron Scattering in PandaX-4T
Xiaofeng Shang, Abdusalam Abdukerim, Zihao Bo +89
We report the first search for the elastic scatterings between cosmic-ray boosted sub-MeV dark matter and electrons in the PandaX-4T liquid xenon experiment. Sub-MeV dark matter pa…
Dark Matter Annihilation via Breit-Wigner Enhancement with Heavier Mediator
Yu Cheng, Shao-Feng Ge, Jie Sheng +1
We propose a new scenario that both the dark matter freeze-out in the early Universe and its possible annihilation for indirect detection around a supermassive black hole are enhan…