Splitting the split supersymmetry

Abstract

In split supersymmetry, the supersymmetric scalar particles are all very heavy, at least at the order of 10^9 GeV, but the gauginos, Higgsinos, and one of the neutral Higgs bosons remain below a TeV. Here we further split the split supersymmetry by taking the Higgsino mass parameter μto be very large. In this case, the μproblem is avoided and we keep the wino as a dark matter candidate. A crude gauge coupling unification is still preserved. Dark matter signals and collider phenomenology are discussed in this μ-split SUSY scenario. The most interesting dark matter signal is the annihilation into monochromatic photons. In colliders, chargino-pair and the associated chargino-neutralino production cross sections have a certain ratio due to gauge couplings, and the chargino has long decays.

18 pages and 4 plots; references added, to be submitted to Phys. Rev. D

References in corpus (10)

• Non-Perturbative Effect on Dark Matter Annihilation and Gamma Ray Signature from Galactic Center
• PeV-Scale Supersymmetry
• Split Supersymmetry
• Signatures of long-lived gluinos in split supersymmetry
• Dark Matter in the Finely Tuned Minimal Supersymmetric Standard Model
• Split Supersymmetry at Colliders
• Neutralino Dark Matter Detection in Split Supersymmetry Scenarios
• The Role of Antimatter Searches in the Hunt for Supersymmetric Dark Matter
• Split Supersymmetry, stable gluino, and gluinonium
• Axion Models with High-Scale Supersymmetry Breaking

Cited by in corpus (26)

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• Mini-Split
• Neutralino Dark Matter at 14 and 100 TeV
• Seesaw at LHC
• Hidden fermion as milli-charged dark matter in Stueckelberg Z' model
• Collider Signatures for Heavy Lepton Triplet in Type I+III Seesaw
• Direct Detection of Non-Chiral Dark Matter
• Electroweak relaxation from finite temperature
• Split Dirac Supersymmetry: An Ultraviolet Completion of Higgsino Dark Matter
• Natural Baryogenesis from Unnatural Supersymmetry
• A sharp 141 GeV Higgs prediction from environmental selection
• R-symmetric High Scale Supersymmetry
• A minimal supersymmetric scenario with only μat the weak scale
• Dark Matter Constraints on Gaugino/Higgsino Masses in Split Supersymmetry and Their Implications at Colliders
• Tachyonic Squarks in Split Supersymmetry
• Structure of split supersymmetry and simple models
• Characterizing Invisible Electroweak Particles through Single-Photon Processes at High Energy $e^{+}{e}^{-}$ Colliders
• Distinguishing split supersymmetry in Higgs signals at the Large Hadron Collider
• Hadronic production and decays of Charginos and Neutralinos in Split Supersymmetry
• Towards Large Volume Big Divisor D3-D7 "mu-Split Supersymmetry" and Ricci-Flat Swiss-Cheese Metrics, and Dimension-Six Neutrino Mass Operators
• Infrared fixed point of the top Yukawa coupling in split supersymmetry
• Split Supersymmetry in Unified Models
• Virtual Effects of Split SUSY in Higgs Productions at Linear Colliders
• A Healthy Electron/Neutron EDM in D3/D7 mu-Split-Like SUSY
• Local D3/D7 mu-Split SUSY, 125 GeV Higgs and Large Volume Ricci-Flat Swiss-Cheese Metrics: A Brief Review
• Topics in Supergravity Phenomenology