21–23 Sept 2015
Djurönäset
Europe/Stockholm timezone

Self-consistent velocity distributions for WIMPs explaining the Galactic Centre GeV excess

21 Sept 2015, 17:35
30m
Djurönäset

Djurönäset

Seregårdsvägen 1, 139 73, Djurhamn, Sweden

Speaker

Mattia Fornasa (GRAPPA Institute (University of Amsterdam))

Description

Complementarity in the search for Dark Matter (DM) is realised when, for example, you use indirect detection gamma-ray data for infer information on the expected event rate in a direct detection experiment. However, one should take care of adopting the same assumptions when combining different detection strategies. I will assume that the excess measured by Fermi-LAT from the Galactic Centre is due to DM and I will use the information on its morphology to infer the DM distribution in the inner Galaxy. This will be combined with other kinematics information at larger distances to generate a mass model of the Milky Way that is compatible with the Galactic Centre excess. The velocity distribution consistently determined from this mass model is what should be used to predict the expected recoil rate. I will show the impact of such a consistent modelling of the DM halo in the determination of the upper limits from LUX.

Author

Mattia Fornasa (GRAPPA Institute (University of Amsterdam))

Presentation materials