Combined LHC/ILC analysis of a SUSY scenario with heavy sfermions

Abstract

We discuss the potential of analyses at the Large Hadron Collider and the planned International Linear Collider to explore low-energy supersymmetry in a difficult region of the parameter space characterized by masses of the scalar SUSY particles around 2 TeV. Precision analyses of cross sections for light chargino production and forward-backward asymmetries of decay leptons and hadrons at the first stage of the ILC with √s = 500 GeV, together with mass information on χ̃20 and squarks from the LHC, allow us to determine the underlying fundamental gaugino/higgsino MSSM parameters and to constrain the masses of the heavy, kinematically inaccessible sparticles. No assumptions on a specific SUSY-breaking mechanism are imposed. For this analysis the complete spin correlations between production and decay processes must be taken into account. © SISSA 2006.