Dark Matter, Muon g - 2 And Other Accelerator Constraints

Details Dark Matter, Muon g - 2 And Other Accelerator Constraints Dark Matter, Muon g - 2 And Other Accelerator Constraints

2002-11-26

arxiv.org/abs/hep-ph/0211417v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, latex, 4 figures, Invited talk at Identification of Dark Matter (IDM 2002), September 2002, upper bound on the neutra

Scientific paper

We review the current status of the Brookhaven muon g - 2 experiment, and it's effects on the SUSY parameter space when combined with dark matter relic density bounds, b->s\gamma and Higgs mass constraints. If the 3\sigma deviation of g - 2 from the Standard Model value is correct, these data constrain the mSUGRA parameter space strongly, i.e. 300 GeV <~m_{1/2}<~850 GeV, and m_0 (at fixed \tan\beta, A_0) is tightly constrained (except at very large \tan\beta). Dark matter detection cross sections lie within the range accessible to future planned experiments. A non-universal gluino soft breaking mass however can greatly reduce the lower bound on m_{1/2} (arising from the b->s\gamma constraint) allowing for relatively light neutralinos, while non-universal Higgs H_2 mass can lead to new regions of allowed relic density where the detection cross sections can be increased by a factor of 10 or more.

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