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

Journal Article · Tue Jun 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.115006· OSTI ID:21407997

Kadota, Kenji; Freese, Katherine ^[1]; Gondolo, Paolo ^[2]

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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)

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{sup +} 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.

• OSTI ID: 21407997
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 11; Other Information: DOI: 10.1103/PhysRevD.81.115006; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
ANTIPROTONS
BREIT-WIGNER FORMULA
COSMIC POSITRONS
COSMIC RADIATION
DEGREES OF FREEDOM
GAMMA RADIATION
HIGGS BOSONS
HIGGS MODEL
NONLUMINOUS MATTER
RESONANCE
STANDARD MODEL
SUPERSYMMETRY
ANTIBARYONS
ANTILEPTONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
BARYONS
BOSONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
HADRONS
INTERACTIONS
IONIZING RADIATIONS
LEPTONS
MATHEMATICAL MODELS
MATTER
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE MODELS
POSITRONS
POSTULATED PARTICLES
PROTONS
QUANTUM FIELD THEORY
RADIATIONS
SECONDARY COSMIC RADIATION
SYMMETRY
UNIFIED GAUGE MODELS