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Light Neutralino Dark Matter in the pMSSM: Implications of LEP, LHC and Dark Matter Searches on SUSY Particle Spectra

Abstract : We investigate the viability of light neutralino scenarios as promoted by dark matter direct detection experiments. Using high statistics scans in the pMSSM we have identified several scenarios which give rise to very light neutralinos with large direct detection scattering cross sections. Our results are challenged with constraints from dark matter relic density, direct detection, indirect detection, as well as flavour physics, electroweak precision tests, LEP and Tevatron limits, LHC limits on SUSY, Higgs and monojet searches. In particular we study the effect of a Higgs boson in the range 122.5 < Mh < 127.5 GeV. We show that several scenarios emerge in agreement with all the constraints, and we study their characteristics and the LHC sensitivity.
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http://hal.in2p3.fr/in2p3-00722315
Contributor : Sylvie Flores Connect in order to contact the contributor
Submitted on : Wednesday, August 1, 2012 - 11:45:51 AM
Last modification on : Thursday, December 16, 2021 - 2:10:26 PM

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A. Arbey, M. Battaglia, F. Mahmoudi. Light Neutralino Dark Matter in the pMSSM: Implications of LEP, LHC and Dark Matter Searches on SUSY Particle Spectra. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2012, 72, pp.1-13. ⟨10.1140/epjc/s10052-012-2169-9Authors⟩. ⟨in2p3-00722315⟩

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