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arXiv · 0905.1782

CP-sensitive spin-spin correlations in neutralino production at the ILC

A. Bartl·K. Hohenwarter-Sodek·T. Kernreiter·O. Kittel·M. Terwort
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Abstract

We study the CP-violating terms of the spin-spin correlations in neutralino production and their subsequent two-body decays into sleptons plus leptons at the ILC. We analyze CP-sensitive observables with the help of T-odd products of the spin-spin terms. These terms depend on the polarizations of both neutralinos, with one polarization perpendicular to the production plane. We present a detailed numerical study of the CP-sensitive observables, cross sections, and neutralino branching ratios in the Minimal Supersymmetric Standard Model with complex parameters.

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A. Bartl, K. Hohenwarter-Sodek, T. Kernreiter, O. Kittel, M. Terwort. 2009-06-29. CP-sensitive spin-spin correlations in neutralino production at the ILC. https://doi.org/10.1088/1126-6708/2009/07/054

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