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CP violation in chargino production and decay into sneutrino

A. Bartl, H. Fraas, O. Kittel, W. Majerotto

hep-pharXiv:hep-ph/0406309

Abstract

We study CP odd asymmetries in chargino production E+ E- --> ~Chi(+-)(1) Chi(-+)(2) and the subsequent two-body decay of one chargino into a sneutrino. We show that in the Minimal Supersymmetric Standard Model with complex parameter μthe asymmetries can reach 30 %. We discuss the feasibility of measuring these asymmetries at a linear collider with s = 800 GeV and longitudinally polarized beams.

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