chi^2 Analysis of Supersymmetric Models

Details chi^2 Analysis of Supersymmetric Models chi^2 Analysis of Supersymmetric Models

1997-08-16

arxiv.org/abs/hep-ph/9708374v1

Nucl.Phys.Proc.Suppl. 62 (1998) 97-107

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 13 figures. Talk given by D.M.P. at the 5th International Conference on Supersymmetries in Physics (SUSY 97), Philad

Scientific paper

10.1016/S0920-5632(97)00647-6

We discuss the results of a global fit to precision data in supersymmetric models. We consider both gravity- and gauge-mediated models. As the superpartner spectrum becomes light, the global fit to the data typically results in larger values of chi^2. We indicate the regions of parameter space which are excluded by the data. We discuss the additional effect of the B(B --> X_s\gamma) measurement. Our analysis excludes chargino masses below MZ in the simplest gauge-mediated model with mu>0, with stronger constraints for larger values of tan beta.

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