The right-handed sneutrino as thermal dark matter in U(1) extensions of the MSSM

Journal Article · Thu Dec 01 04:00:00 EST 2011 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2011/12/014· OSTI ID:22279713

Bélanger, G.; Silva, J. Da ^[1]

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1. LAPTH, Université de Savoie, CNRS, 9 Chemin de Bellevue, 74940 Annecy-le-Vieux (France)

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 50 GeV 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 ΔM{sub 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.

• OSTI ID: 22279713
• Journal Information: Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 12 Vol. 2011; ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ANNIHILATION
ASTROPHYSICS
CERN LHC
COSMOLOGY
GAUGE INVARIANCE
GEV RANGE
HIGGS BOSONS
HIGGS MODEL
NONLUMINOUS MATTER
PARTICLE IDENTIFICATION
SPARTICLES
SUPERSYMMETRY
TEV RANGE
U-1 GROUPS