Direct Detection of Sub-GeV Dark Matter with $s>1$ through the DM-Electron Scattering (I): case study for $s=3/2$ and $s=2$ with (pseudo)scalar mediator

Ke-yun Wu, Acckin Lee

The observable signal of higher-spin particles is rare in current particle collider experiments. In the meantime, there have no evident constraints on the spin of the dark matter p…