Looking for a Heavy Higgsino LSP in Collider and Dark Matter Experiments

Abstract

A large part of the mSUGRA parameter space satisfying the WMAP constraint on the dark matter relic density corresponds to a higgsino LSP of mass $\simeq 1$ TeV. We find a promising signal for this LSP at CLIC, particularly with polarized electron and positron beams. One also expects a viable monochromatic $\gamma$-ray signal from its pair annihilation at the galactic center at least for cuspy DM halo profiles. All these results hold equally for the higgsino LSP of other SUSY models like the non-universal scalar or gaugino mass models and the so-called inverted hierarchy and more minimal supersymmetry models.

arXiv commentLaTeX, 18 pages with 5 embedded postscript figures. Added a couple of references (version to appear in Phys. Lett. B)

References in corpus (50)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• A Universal Density Profile from Hierarchical Clustering
• The Structure of Cold Dark Matter Halos
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Dark Matter Substructure in Galactic Halos
• A direct empirical proof of the existence of dark matter
• The Structure of Dark Matter Haloes in Dwarf Galaxies
• DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
• Supersymmetric Unification Without Low Energy Supersymmetry And Signatures for Fine-Tuning at the LHC
• SuSpect: a Fortran Code for the Supersymmetric and Higgs Particle Spectrum in the MSSM
• Neutralino Relic Density including Coannihilations
• Electroweak Symmetry Breaking and Bottom-Top Yukawa Unification
• Wino Cold Dark Matter from Anomaly-Mediated SUSY Breaking
• Observability of Gamma Rays from Dark Matter Neutralino Annihilations in the Milky Way Halo
• The More Minimal Supersymmetric Standard Model
• Multi-TeV Scalars are Natural in Minimal Supergravity
• Focus Points and Naturalness in Supersymmetry
• Non-perturbative Effect on Thermal Relic Abundance of Dark Matter
• Higgs Boson Theory and Phenomenology
• Explosive Dark Matter Annihilation
• micrOMEGAs: Version 1.3
• Naturalness, Weak Scale Supersymmetry and the Prospect for the Observation of Supersymmetry at the Tevatron and at the LHC
• WMAP Constraints, SUSY Dark Matter and Implications for the Direct Detection of SUSY
• Supergravity with a Gravitino LSP
• Observing an invisible Higgs boson
• Convergence and scatter of cluster density profiles
• Exploration of the MSSM with Non-Universal Higgs Masses
• Quintessence and the Relic Density of Neutralinos
• Gravitino Dark Matter in the CMSSM
• Prospects for Indirect Detection of Neutralino Dark Matter
• Light Higgsino Dark Matter
• Non-Thermal Production of WIMPs and the Sub-Galactic Structure of the Universe
• A Non-Standard String/SUSY Scenario and its Phenomenological Implications
• Neutralino Annihilation into a Photon and a Z boson
• Unitarity and Higher-Order Corrections in Neutralino Dark Matter Annihilation into Two Photons
• Lower Bound on the Neutralino Mass from New Data on CMB and Implications for Relic Neutralinos
• Higgsino and Wino Dark Matter from Q-ball Decay in Affleck-Dine Baryogenesis
• Searching for Invisible and Almost Invisible Particles at e^+e^- Colliders
• Higgsino Dark Matter in a SUGRA Model with Nonuniversal Gaugino Masses
• Quintessential Enhancement of Dark Matter Abundance
• Search for the Standard Model Higgs Boson with the OPAL Detector at LEP
• Search for Nearly Mass-Degenerate Charginos and Neutralinos at LEP
• Nucleon scattering with higgsino and wino cold dark matter
• LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass
• Invisible charginos and neutralinos from gauge boson fusion : a way to explore anomaly mediation ?
• Initial Scales, Supersymmetric Dark Matter and Variations of Neutralino-Nucleon Cross Sections
• Aspects of Two-Photon Physics at Linear e+e- Colliders
• Sgr A East as a possible high energy neutron factory in the Galactic Centre

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• TeV scale partial mirage unification and neutralino dark matter
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• Supersymmetry Searches in GUT Models with Non-Universal Scalar Masses
• Radiative Corrections to Aid the Direct Detection of the Higgsino-like Neutralino Dark Matter: Spin-Independent Interactions
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