Göttingen 2012 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 20: Astroteilchenphysik und Kosmologie (Theorie)

T 20.3: Vortrag

Montag, 27. Februar 2012, 17:15–17:30, VG 3.101

(contribution withdrawn) Spectral features in indirect dark matter searches — •Francesca Calore1, Torsten Bringmann1, Gilles Vertongen2, and Christoph Weniger31II. Institute for Theoretical Physics, University of Hamburg, Luruper Chaussee 149, DE-22761 Hamburg, Germany — 2Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22603 Hamburg, Germany — 3Max-Planck-Institut fuer Physik, Foehringer Ring 6, 80805 Munich, Germany

Gamma rays from the annihilation of dark matter particles in the Galactic halo provide a very promising means of indirectly detecting dark matter. In this contest, pronounced spectral features near the kinematic cutoff at the dark matter particles' mass - a generic prediction for most models - represent a 'smoking gun' signature for dark matter indirect detection. In this talk, we present projected limits on such features and show that they can be much more efficient in constraining the nature of DM than the model-independent broad spectral features expected at lower energies. In particular, we discuss how they can significantly improve the sensitivity of current and future gamma-ray telescopes to dark matter signals.

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