14–17 Jun 2011
DESY
Europe/Berlin timezone

On the Relevance of Sharp Gamma-Ray Features for Indirect Dark Matter Searches

16 Jun 2011, 15:15
12m
Lecture Hall (Building 61)

Lecture Hall

Building 61

Notkestr. 85, 22607 Hamburg, Germany

Speaker

Ms Francesca Calore (University of Hamburg)

Description

Gamma rays from the annihilation of dark matter particles in the Galactic halo provide a particularly promising means of indirectly detecting dark matter. Here, we demonstrate that pronounced spectral features near the kinematic cutoff at the dark matter particles' mass, which is a generic prediction for most models, can significantly improve the sensitivity of gamma-ray telescopes to dark matter signals. We derive projected limits on such features (including the traditionally looked-for line signals) and show that these can be very efficient in constraining the nature of dark matter.

Presentation materials