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

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

2006-09-06

arxiv.org/abs/hep-ph/0609061v2

Phys.Rev.D75:055004,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.75.055004

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.

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