Detecting Asymmetric Dark Matter in the Sun with Neutrinos

Understand

Dark Matter (DM) may have a relic density that is in part determined by a particle/antiparticle asymmetry, much like baryons.

• If this is the case, it can accumulate in stars like the Sun to sizable number densities and annihilate to Standard Model (SM) particles including neutrinos.
• We show that the combination of neutrino telescope and direct detection data can be used in conjunction to determine or constrain the DM asymmetry from data.
• Depending on the DM mass, the current neutrino data from Super-K and IceCube give powerful constraints on asymmetric DM unless its fractional asymmetry is $\lesssim 10^{-2}$.