Precision GMSB at a Linear Collider ⋆

Abstract

We simulate precision measurements of gauge-mediated supersymmetry breaking (GMSB) parameters at a 500 GeV ee linear collider in the scenario where a neutralino is the nextto-lightest supersymmetric particle. Information on the supersymmetry breaking and the messenger sectors of the theory is extracted from the measured sparticle mass spectrum and neutralino lifetime. Worldwide Study on Physics and Experiments with Future Linear ee Colliders 4 International Workshop on Linear Colliders (LCWS’99) Sitges, Barcelona, Spain, April 28 – May 5, 1999. ⋆ Work supported also by Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany. PRECISION GMSB AT A LINEAR COLLIDER a

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