CP sensitive observables in chargino production and decay into a W boson

We study CP sensitive observables in chargino production in electron-positron collisions with subsequent two-body decay of one chargino into a W boson. We identify the CP odd elements of the W boson density matrix and propose CP sensitive triple-product asymmetries of the chargino decay products. We calculate the density-matrix elements, the CP asymmetries, and the cross sections in the minimal supersymmetric standard model with complex parameters μ and M1 for an e+e- linear collider with √(s)=800 GeV and longitudinally polarized beams. The asymmetries can reach 7% and we discuss the feasibility of measuring these asymmetries