Neutralinos in E_6 inspired supersymmetric U(1)' models
Abstract
The neutralino sector in E_6 inspired supersymmetric models with extra neutral gauge bosons and singlet Higgs fields contains additional gaugino and singlino states compared to the MSSM. We discuss the neutralino mixing in rank 5 and rank 6 models and analyze the supersymmetric parameter space where the light neutralinos have mainly singlino or MSSM character. The neutralino character, resonance effects of the new gauge bosons and, assuming mSUGRA-type RGEs, different selectron masses lead to significant differences between the MSSM and the extended models in neutralino production at an e^+e^- linear collider. Beam polarization may improve the signatures to distinguish between the models. In an appendix, we present the mass terms of the gauge bosons, charginos and sfermions which show a significant different mass spectrum than in the MSSM and give all relevant neutralino couplings.
Cite
@article{arxiv.hep-ph/0107080,
title = {Neutralinos in E_6 inspired supersymmetric U(1)' models},
author = {S. Hesselbach and F. Franke and H. Fraas},
journal= {arXiv preprint arXiv:hep-ph/0107080},
year = {2011}
}
Comments
26 pages, LaTeX, 5 eps figures; version to be published in EPJ C