Revisiting light neutralino scenarios in the MSSM

Abstract

We revisit the case of a light neutralino LSP in the framework of the MSSM. We consider a model with eleven free parameters. We show that all scenarios where the annihilation of light neutralinos rely mainly on the exchange of a light pseudoscalar are excluded by direct detection searches and by Fermi measurements of the gamma-flux from dwarf spheroidal galaxies. On the other hand, we find scenarios with light sleptons that satisfy all collider and astroparticle physics constraints. In this case, the lower limit on the LSP mass is 12.6 GeV. We discuss how the parameter space of the model will be further probed by new physics searches at the LHC.

7 pages, 8 figures

References in corpus (15)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• New results from DAMA/LIBRA
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• First Dark Matter Results from the XENON100 Experiment
• Indirect search for dark matter with micrOMEGAs2.4
• Observations of annual modulation in direct detection of relic particles and light neutralinos
• Can neutralinos in the MSSM and NMSSM scenarios still be light?
• Search for associated production of charginos and neutralinos in the trilepton final state using 2.3 fb-1 of data
• Discussing direct search of dark matter particles in the Minimal Supersymmetric extension of the Standard Model with light neutralinos
• Dark matter in the classical dwarf spheroidal galaxies: a robust constraint on the astrophysical factor for gamma-ray flux calculations
• 10 GeV dark matter candidates and cosmic-ray antiprotons
• SUSY dark matter in light of CDMS II results: a comparative study for different models
• Impact of the recent results by the CMS and ATLAS Collaborations at the CERN Large Hadron Collider on an effective Minimal Supersymmetric extension of the Standard Model
• Cosmic-ray antiproton constraints on light singlino-like dark matter candidates
• Measuring a Light Neutralino Mass at the ILC: Testing the MSSM Neutralino Cold Dark Matter Model

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