Supersymmetric extra U(1) models with a singlino dominated LSP

Abstract

We investigate phenomenology related to the neutral fields in supersymmetric models with an extra U(1) derived from $E_6$. Our study is concentrated into the models which have a singlino dominated neutralino as the lightest superparticle (LSP). If such models satisfy a constraint for dark matter derived from the WMAP data, the lightest neutral Higgs scalar, a new neutral gauge field $Z^{\prime }$ and the LSP may be interesting targets for the study at the LHC. We also discuss features of the $Z^{\prime }$ in the models and its detectability at the LHC.

33 pages, 7 figures, gaugino mass relation was changed and figures were replaced, main conclusions were not changed, accepted version in PRD

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• Leptogenesis and dark matter unified in a non-SUSY model for neutrino masses
• Precision measurements, dark matter direct detection and LHC Higgs searches in a constrained NMSSM
• Probing U(1) extensions of the MSSM at the LHC Run I and in dark matter searches
• Affleck-Dine leptogenesis in the radiative neutrino mass model
• Z_2-Singlino Dark Matter in a Portal-Like Extension of the Minimal Supersymmetric Standard Model
• Higgs Bosons in supersymmetric U(1)' models with CP Violation
• Z' boson mass reach and model discrimination at muon colliders
• Phenomenology of S_4 Flavor Symmetric extra U(1) model
• Neutrino masses and $\mu$ terms in a supersymmetric extra U(1) model
• Electric Dipole Moments in U(1)' Models