Neutralino Production with Polarized Beams in Extended Supersymmetric Models

Details Neutralino Production with Polarized Beams in Extended Supersymmetric Models Neutralino Production with Polarized Beams in Extended Supersymmetric Models

2000-03-28

arxiv.org/abs/hep-ph/0003272v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX, 10 eps figures, contribution to the Proceedings of the "2nd Joint ECFA/DESY Study on Physics and Detectors fo

Scientific paper

We discuss associated neutralino production e^+ e^- --> \tilde{\chi}^0_1 \tilde{\chi}^0_2 with both beams polarized in the MSSM, NMSSM and an E_6 model. It is shown that neutralinos with a large singlino component can be produced at a high luminosity linear collider in a broad parameter range. Polarization effects in the extended models are compared over the whole parameter space where the lightest neutralino is mainly a singlino. We explain the complete different behavior of these models in some parameter regions, which may help to identify the respective supersymmetric model.

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