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Search at the CERN LHC for a light neutralino of cosmological interest

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arxiv 1108.2190 v1 pith:DXZE2IUK submitted 2011-08-10 hep-ph astro-ph.CO

Search at the CERN LHC for a light neutralino of cosmological interest

classification hep-ph astro-ph.CO
keywords modelneutralinosearchinterestlightscaleunificationaddress
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We address the problem of a search at the LHC for a neutralino whose mass is around 10 GeV, i.e. in the range of interest for present data of direct search for dark matter particles in the galactic halo. This light neutralino is here implemented in an effective Minimal Supersymmetric extension of the Standard Model at the electroweak scale without requirement of a gaugino-mass unification at a grand unification scale. Within this model we select a representative benchmark and determine its prospects of reconstructing the main features of the model at different stages of the LHC runs.

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