Neutralino Dark Matter from Indirect Detection Revisited

Details Neutralino Dark Matter from Indirect Detection Revisited Neutralino Dark Matter from Indirect Detection Revisited

2008-07-09

arxiv.org/abs/0807.1508v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, 9 figures: v2. Corrected typos, fixed synchrotron bounds in light of bugs in program

Scientific paper

We revisit indirect detection possibilities for neutralino dark matter, emphasizing the complementary roles of different approaches. While thermally produced dark matter often requires large astrophysical "boost factors" to observe antimatter signals, the physically motivated alternative of non-thermal dark matter can naturally provide interesting signals, for example from light wino or Higgsino dark matter. After a brief review of cosmic ray propagation, we discuss signals for positrons, antiprotons, synchrotron radiation and gamma rays from wino annihilation in the galactic halo, and examine their phenomenology. For pure wino dark matter relevant to the LHC, PAMELA and GLAST should report signals.

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