Published June 1, 2010 | Version v1
Journal article

Positrons in cosmic rays from dark matter annihilations for uplifted Higgs regions in the MSSM

  • 1. Michigan Center for Theoretical Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)
  • 2. Department of Physics, University of Utah, Salt Lake City, Utah 84112 (United States)

Description

We point out that there are regions in the minimal supersymmetric standard model (MSSM) parameter space which successfully provide a dark matter (DM) annihilation explanation for observed e+ excess (e.g., PAMELA), while still remaining in agreement with all other data sets. Such regions (e.g., the uplifted Higgs region) can realize an enhanced neutralino DM annihilation dominantly into leptons via a Breit-Wigner resonance through the CP-odd Higgs channel. Such regions can give the proper thermal relic DM abundance, and the DM annihilation products are compatible with current antiproton and gamma ray observations. This scenario can succeed without introducing any additional degrees of freedom beyond those already in the MSSM.

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
81
Journal Issue
11
Journal Page Range
p. 115006-115006.10
ISSN
0556-2821
CODEN
PRVDAQ

Optional Information

Notes
(c) 2010 The American Physical Society