chi^2 Analysis of Supersymmetric Models

Abstract

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_sγ) 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.

11 pages, 13 figures. Talk given by D.M.P. at the 5th International Conference on Supersymmetries in Physics (SUSY 97), Philadelphia, Pennsylvania, May 27-31, 1997

References in corpus (2)

• First Measurement of Leptonic Coupling Asymmetries with Polarized Z bosons
• Supersymmetry, Supergravity and R_b revisited in the light of LEP 2

Cited by in corpus (2)

• Electroweak Precision Observables in the Minimal Supersymmetric Standard Model
• Indirect Sensitivities to the Scale of Supersymmetry