Collider, direct and indirect detection of supersymmetric dark matter

Abstract

We present an overview of supersymmetry searches, both at collider experiments and via searches for dark matter (DM). We focus on three DM possibilities in the SUSY context: the thermally produced neutralino, a mixture of axion and axino, and the gravitino, and compare and contrast signals that may be expected at colliders, in direct detection (DD) experiments searching of DM relics left over from the Big Bang, and indirect detection (ID) experiments designed to detect the products of DM annihilations within the solar interior or galactic halo. Detection of DM particles using multiple strategies provides complementary information that may shed light on the new physics associated with the dark matter sector. In contrast to the mSUGRA model where the measured cold DM relic density restricts us to special regions mostly on the edge of the m_0-m_{1/2} plane, the entire parameter plane becomes allowed if the universality assumption is relaxed in models with just one additional parameter. Then, thermally produced neutralinos with a well-tempered mix of wino, bino and higgsino components, or with a mass adjusted so that their annihilation in the early universe is Higgs-resonance-enhanced, can be the DM. Well-tempered neutralinos typically yield heightened rates for DD and ID experiments compared to generic predictions from minimal supergravity. If instead DM consists of axinos (possibly together with axions) or gravitinos, then there exists the possibility of detection of quasi-stable next-to-lightest SUSY particles at colliding beam experiments, with especially striking consequences if the NLSP is charged, but no DD or ID detection. The exception for mixed axion/axino DM is that DD of axions may be possible.

28 pages, 11 eps figures; invited contribution to NJP Focus Issue on "Dark Matter and Particle Physics"

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• A review of the discovery reach of directional Dark Matter detection
• Hidden SUSY at the LHC: the light higgsino-world scenario and the role of a lepton collider
• Dark Matter Particle Spectroscopy at the LHC: Generalizing MT2 to Asymmetric Event Topologies
• Neutralino dark matter in mSUGRA/CMSSM with a 125 GeV light Higgs scalar
• Search for Dark Matter with CRESST
• Constraining the minimal dark matter fiveplet with LHC searches
• Neutralino, axion and axino cold dark matter in minimal, hypercharged and gaugino AMSB
• Fine-tuning favors mixed axion/axino cold dark matter over neutralinos in the minimal supergravity model
• The right-handed sneutrino as thermal dark matter in U(1) extensions of the MSSM
• Solar WIMPs Unraveled: Experiments, astrophysical uncertainties, and interactive Tools
• Probing neutralino dark matter in the MSSM & the NMSSM with directional detection
• The Higgs boson in the MSSM in light of the LHC
• Constraining Dark Matter Properties with Gamma-Rays from the Galactic Center with Fermi-LAT
• Geometric Dark Matter
• Constraining the Milky Way Dark Matter Density Profile with Gamma-Rays with Fermi-LAT
• Determining the nuclear form factor for detection of dark matter in the relativistic mean field theory
• Dark Matter from the Supersymmetric Custodial Triplet Model
• Exploring neutralino dark matter resonance annihilation via bA,bH -> b mu^+ mu^- at the LHC
• Finding viable Models in SUSY Parameter Spaces with Signal Specific Discovery Potential
• The Dark Side of Electroweak Naturalness Beyond the MSSM