Splitting split supersymmetry
- Department of Physics and NCTS, National Tsing Hua University, Hsinchu, Taiwan (China)
In split supersymmetry, the supersymmetric scalar particles are all very heavy, at least at the order of 10{sup 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 {mu} to be very large. In this case, the {mu} problem 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 {mu}-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.
- OSTI ID:
- 20709395
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 71, Issue 9; Other Information: DOI: 10.1103/PhysRevD.71.095003; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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