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Dark matter sees the light

Patrick Meadea,b, Michele Papuccia and Tomer Volanskya

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We construct a Dark Matter (DM) annihilation module that can encompass the predictions from a wide array of models built to explain the recently reported PAMELA and ATIC/PPB-BETS excesses. We present a detailed analysis of the injection spectrums for DM annihilation and quantitatively demonstrate effects that have previously not been included from the particle physics perspective. With this module we demonstrate the parameter space that can account for the aforementioned excesses and be compatible with existing high energy gamma ray and neutrino experiments. However, we find that it is relatively generic to have some tension between the results of the HESS experiment and the ATIC/PPB-BETS experiments within the context of annihilating DM. We discuss ways to alleviate this tension and how upcoming experiments will be able to differentiate amongst the various possible explanations of the purported excesses.

Keywords

Beyond Standard Model

Cosmology of Theories beyond the SM

 

E-print Number: 0901.2925

Cited: by |

Refers: to

PACS

95.35.+d Dark matter (stellar, interstellar, galactic, and cosmological)

95.30.Cq Elementary particle processes

98.80.Cq Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.)

Subjects

Gravitation and cosmology

Particle physics and field theory

Astrophysics and astroparticles

Dates

Issue 12 (December 2009)

Received 13 March 2009, accepted for publication 15 October 2009

Published 17 December 2009



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