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

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.

27 pages, 6 figures, references and comments added, version to appear in JHEP

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Cited by in corpus (5)

• Physics at the e+ e- Linear Collider
• Probing SUSY CP Violation in Two-Body Stop Decays at the LHC
• Normal tau polarisation as a sensitive probe of CP violation in chargino decay
• Measurement of CP asymmetries in neutralino production at the ILC
• CP asymmetries in the supersymmetric trilepton signal at the LHC