Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-10-11
Physics
High Energy Physics
High Energy Physics - Phenomenology
29 pages, 12 figures
Scientific paper
We investigate the parameter space of a supersymmetric model with an extended U(1) gauge symmetry in which the RH sneutrino is a thermal dark matter candidate. In this scenario, annihilation of RH sneutrinos proceeds mainly through Higgs or Z' exchange. We find that sneutrinos in the mass range from 50GeV to more than 1 TeV can be consistent with both the WMAP limit and the direct detection upper limits. Powerful constraints from new gauge boson searches at the LHC as well as from $\Delta M_s$ are incorporated. Depending on the choice of the U(1) charge, these scenarios will be further probe by direct dark matter searches as well as by Higgs searches at the LHC.
Bélanger Guillaume
Pukhov Alexander
Silva Jonathan Da
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