Abstract
We investigate the constraints to the light neutralino dark matter scenario in the minimal supersymmetric standard model from available experimental observations such as decays of B and K meson, relic dark matter abundance, and the search for neutralino and Higgs production at colliders. We find that two regions of the MSSM parameter space fulfill all the constraints: a fine-tuned strip with large tanβ where the lightest neutralino can be a slight as 8 GeV, and alow tanβ region providing a neutralino mass larger than 16 GeV. The large tan β strip, which can be compatible with recently reported signals from direct detection experiments, can be fully tested by means of low-energy observables and, in particular, by B s → μμ and Higgs bosons searches at the LHC within the upcoming months.
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ArXiv ePrint:1104.1134
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Calibbi, L., Ota, T. & Takanishi, Y. Light neutralino in the MSSM: a playground for dark matter, flavor physics and collider experiments. J. High Energ. Phys. 2011, 13 (2011). https://doi.org/10.1007/JHEP07(2011)013
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DOI: https://doi.org/10.1007/JHEP07(2011)013