Speaker
Description
Freeze-in regime of inelastic DM with electromagnetic form factors We investigate the freeze-in production of inelastic dark matter (DM) consisting of two nearly degenerate fermions coupled to the Standard Model through electromagnetic form factors: electric and magnetic dipole moments (dimension 5), and anopole moment and charge radius (dimension 6). We investigate low reheating temperature scenario, and determine the relic density parameter space due to the $\mathrm{SM}+\mathrm{SM} \to f + \bar{f}$ annihilations. We discuss prospects for its detection at terrestrial and astrophysical/cosmological probes. In particular, when the mass splitting is sufficiently small, the excited state is sufficiently long-lived to allow indirect detection signatures due to loop-suppressed decays to photons.
