The top squark-mediated annihilation scenario and direct detection of dark matter in compressed supersymmetry
arXiv:0707.2812 · doi:10.1103/PhysRevD.76.095005
Abstract
Top squark-mediated annihilation of bino-like neutralinos to top-antitop pairs can play the dominant role in obtaining a thermal relic dark matter abundance in agreement with observations. In a previous paper, it was argued that this can occur naturally in models of compressed supersymmetry, which feature a running gluino mass parameter that is substantially smaller than the wino mass parameter at the scale of apparent gauge coupling unification. Here I study in some more detail the parameter space in which this is viable, and compare to other scenarios for obtaining the observed dark matter density. I then study the possibility of detecting the dark matter directly in future experiments. The prospects are consistently very promising for a wide variety of model parameters within this scenario.
17 pages. v2: additions to figures 4 and 6
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Cited by in corpus (10)
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- Natural Dark Matter in SUSY GUTs with Non-universal Gaugino Masses
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- Collider signals and neutralino dark matter detection in relic-density-consistent models without universality
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- Heavy-flavour tagging and the supersymmetry reach of the CERN Large Hadron Collider
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