2023-12-08 13:00  online

(Un)Faithful neutrinos in search of dark matter

Dr. Tarak Nath Maity

In this talk, we will discuss the seemingly contradictory behavior of neutrinos in search of dark matter. In one scenario, we will demonstrate how low-energy (~MeV) solar neutrinos slow down the search for sub-GeV DM-electron scattering in electron recoil direct detection experiments. We will show that for DM-electron scattering mediated by heavy particles; Solar neutrino can hamper the search for DM in some well-motivated regions of parameter space. Conversely, we probe DM-electron scattering using high-energy (~5-1000 GeV) neutrinos produced from DM particles captured within the Sun via their interactions with electrons. Using the latest IceCube data, we obtained the strongest constraints for neutrino-rich final states in large regions of DM-electron scattering parameter space for DM mass ~10-10^5 GeV.