Searches for Particle Dark Matter with gamma-rays

Abstract

In this contribution I review the present status and discuss some prospects for indirect detection of dark matter with gamma-rays. Thanks to the Fermi Large Area Telescope, searches in gamma-rays have reached sensitivities that allow to probe the most interesting parameter space of the weakly interacting massive particles (WIMP) paradigm. This gain in sensitivity is naturally accompanied by a number of detection claims or indications, the most recent being the claim of a line feature at a dark matter particle mass of $\sim$ 130 GeV at the Galactic Centre, a claim which requires confirmation from the Fermi-LAT collaboration and other experiments, for example HESS II or the planned Gamma-400 satellite. Predictions for the next generation air Cherenkov telescope, Cherenkov Telescope Array (CTA), together with forecasts on future Fermi-LAT constraints arrive at the exciting possibility that the cosmological benchmark cross-section could be probed from masses of a few GeV to a few TeV. Consequently, non-detection would pose a challenge to the WIMP paradigm, but the reached sensitivities also imply that --optimistically-- a detection is in the cards.

Invited "compact review", 5th International Symposium on High Energy Gamma-Ray Astronomy (Gamma 2012), Heidelberg, 11 pages, 3 figures

References in corpus (12)

• Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
• Constraints on the Galactic Halo Dark Matter from Fermi-LAT Diffuse Measurements
• Dark Matter and Fundamental Physics with the Cherenkov Telescope Array
• H.E.S.S. constraints on Dark Matter annihilations towards the Sculptor and Carina Dwarf Galaxies
• Strong Evidence for Gamma-ray Line Emission from the Inner Galaxy
• Upper limit for gamma-ray emission above 140 GeV from the dwarf spheroidal galaxy Draco
• Investigating Gamma-Ray Lines from Dark Matter with Future Observatories
• Complementarity of direct dark matter detection and indirect detection through gamma-rays
• Search with EGRET for a Gamma Ray Line from the Galactic Center
• Constraint on dark matter annihilation with dark star formation using Fermi extragalactic diffuse gamma-ray background data
• Steady viscous flows in an annulus between two cylinders produced by vibrations of the inner cylinder

Cited by in corpus (6)

• The Denoised, Deconvolved, and Decomposed Fermi $\gamma$-ray sky - An application of the D${}^3$PO algorithm
• Complementarity of Dark Matter Searches at Resonance
• Simplified Dark Matter Models Confront the Gamma Ray Excess
• Evolution of Dark Matter Halos and their Radio Emissions
• More on the Hypercharge Portal into the Dark Sector
• Fundamental Physics with Imaging Atmospheric Cherenkov Telescopes