25–29 Jul 2016
University of Bergen
Europe/Zurich timezone

Probing the nature of dark matter with gamma rays: status of the Fermi LAT searches and prospects for the CTA

28 Jul 2016, 14:30
45m
Egget auditorium in the UiB Student Center (University of Bergen)

Egget auditorium in the UiB Student Center

University of Bergen

Parkveien 1, 5007 Bergen, Norway
Invited talk Indirect Dark Matter Detection

Speaker

Dr Gabrijela Zaharijas (University of Nova Gorica)

Description

High-energy gamma rays are one of the most promising tools to constrain or reveal the nature of Dark Matter (DM), in particular the Weakly Interacting Massive Particles (WIMP) models. During the almost eight years of the Fermi satellite mission, the data from its Large Area Telescope (LAT) were used to set constraints on the WIMP annihilation cross section which cut well into the theoretically-motivated region of parameter space for WIMP masses below 100 GeV. At the same time, the Cherenkov Telescope Array (CTA) is well into its prototyping phase and will soon offer a chance to probe a complementary parameter space of heavier dark matter (from O(200 GeV) up to several tens of TeV ), with unprecedented sensitivity.

In this talk I will describe methods used to search for evidence of dark matter with the LAT, and review the status of the searches. I will discuss projections of the expected sensitivities with continued LAT data taking, together with the latest sensitivity predictions on the various targets with CTA.

Summary

High-energy gamma rays are one of the most promising tools to constrain or reveal the nature of Dark Matter (DM), in particular the Weakly Interacting Massive Particles (WIMP) models. During the almost eight years of the Fermi satellite mission, the data from its Large Area Telescope (LAT) were used to set constraints on the WIMP annihilation cross section which cut well into the theoretically-motivated region of parameter space for WIMP masses below 100 GeV. At the same time, the Cherenkov Telescope Array (CTA) is well into its prototyping phase and will soon offer a chance to probe a complementary parameter space of heavier dark matter (from O(200 GeV) up to several tens of TeV ), with unprecedented sensitivity.

In this talk I will describe methods used to search for evidence of dark matter with the LAT, and review the status of the searches. I will discuss projections of the expected sensitivities with continued LAT data taking, together with the latest sensitivity predictions on the various targets with CTA.

Primary author

Dr Gabrijela Zaharijas (University of Nova Gorica)

Presentation materials