Constrained minimal supersymmetric standard model spectroscopy in light of PAMELA and ATIC observations

Journal Article · Sun Mar 01 04:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.055019· OSTI ID:21260113

Gogoladze, Ilia; Khalid, Rizwan; Shafi, Qaisar; Yueksel, Hasan ^[1]

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1. Bartol Research Institute, Department of Physics and Astronomy University of Delaware, Newark, Delaware 19716 (United States)

Dark matter neutralinos in the constrained minimal supersymmetric model (CMSSM) may account for the recent cosmic ray electron and positron observations reported by the PAMELA and ATIC experiments either through self annihilation or via decay. However, to achieve this, both scenarios require new physics beyond the 'standard' CMSSM, and a unified explanation of the two experiments suggests a neutralino mass of order 700 GeV-2 TeV. A relatively light neutralino with mass around 100 GeV (300 GeV) can accommodate the PAMELA but not the ATIC observations based on a model of annihilating (decaying) neutralinos. We study the implications of these scenarios for Higgs and sparticle spectroscopy in the CMSSM and highlight some benchmark points. An estimate of neutrino flux expected from the annihilating and decaying neutralino scenarios is provided.

• OSTI ID: 21260113
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BENCHMARKS
COSMIC ELECTRONS
COSMIC POSITRONS
COSMIC RADIATION
GEV RANGE 01-10
HIGGS BOSONS
HIGGS MODEL
MASS
NEUTRINOS
NONLUMINOUS MATTER
PARTICLE DECAY
SPARTICLES
SPECTROSCOPY
STANDARD MODEL
SUPERSYMMETRY
TEV RANGE 01-10