Direct detection of non-galactic light dark matter

23 Aug 2021, 16:20
20m
ZR4

ZR4

Dark Matter and Astroparticle Physics Dark Matter and Astroparticle Physics

Speaker

Gonzalo Herrera (Technical University of Munich, Max Planck Institute for Physic)

Description

A fraction of the dark matter in the solar neighborhood might be composed of non-galactic particles with speeds larger than the escape velocity of the Milky Way. The non-galactic dark matter flux would enhance the sensitivity of direct detection experiments, due to the larger momentum transfer to the target. In this note, we calculate the impact of the dark matter flux from the Local Group and the Virgo Supercluster diffuse components in nuclear and electron recoil experiments. The enhancement in the signal rate can be very significant, especially for experiments searching for dark matter induced electron recoils.

Primary authors

Alejandro Ibarra Gonzalo Herrera (Technical University of Munich, Max Planck Institute for Physic)

Presentation materials