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In the Minimal Supersymmetric Standard Model (MSSM), we study the lightHiggs-boson radiation off a light-chargino pair in the process e+e- -> h chi^+chi^- at linear colliders with \sqs=500 GeV. We analyze cross sections in theregions of the MSSM parameter space where the process can not proceed viaon-shell production and subsequent decay of either heavier charginos or thepseudoscalar Higgs boson A. Cross sections up to a few fb's are allowed,according to present experimental limits on the Higgs-boson, chargino andsneutrino masses. We also show how a measurement of the process production ratecould provide a determination of the Higgs-boson couplings to charginos.Comment: 26 pages, 9 figures; figure misplacement fixed; to appear in  Eur.Phys.J.

Associated production of a light Higgs boson and a chargino pair in the MSSM at linear colliders