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

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

2011-08-10

arxiv.org/abs/1108.2190v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, 11 figures, typeset with ReVTeX4

Scientific paper

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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