Measurement of CP Violation in the MSSM Neutralino Sector with the ILD

Supersymmetric models provide many new complex phases which lead to CP violating effects in collider experiments. As an example, CP-sensitive triple product asymmetries in neutralino production and subsequent leptonic two-body decays are studied within the Minimal Supersymmetric Standard Model. A full ILD detector simulation has been performed at a center of mass energy of 500GeV, including the relevant Standard Model background processes, a realistic beam energy spectrum, beam backgrounds and a beam polarization of 80% and -60% for the electron and positron beams, respectively. Assuming an integrated luminosity of 500fb-1 collected by the experiment and the performance of the current ILD detector, a relative measurement accuracy of 10% for the CP-sensitive asymmetry can be achieved in the chosen scenario.Supersymmetric models provide many new complex phases which lead to CP violatingeffects in collider experiments. As an example, CP-sensitive triple productasymmetries in neutralino production e + e − → ˜ χ 0 i ˜ χ 0 1 and subsequentleptonic two-body decays˜χ 0 i → ˜ ℓR ℓ, ˜ ℓR → ˜ χ 0 1 ℓ, for ℓ = e, µ, arestudied within the Minimal Supersymmetric Standard Model. A full ILD detectorsimulation has been performed at a center of mass energy of √ s = 500 GeV,including the relevant Standard Model background processes, a realistic beamenergy spectrum, beam backgrounds and a beam polarization of 80% and −60% forthe electron and positron beams, respectively. Assuming an integrated luminosityof 500 fb −1 collected by the experiment and the performance of the current ILDdetector, a relative measurement accuracy of 10% for the CP-sensitive asymmetrycan be achieved in the chosen scenario