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CP asymmetries in chargino production and decay: the three-body decay case

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Abstract

We study CP violation in chargino production and decay in the minimal supersymmetric standard model (MSSM) with complex parameters at an e+e- linear collider with longitudinally polarised beams. We investigate CP-sensitive asymmetries by means of triple product correlations and study their dependence on the complex parameters M1 and μ. We give numerical predictions for the asymmetries and their measurability at the future International Linear Collider. Our results show that the CP asymmetries can be measured in a large region of the MSSM parameter space.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Wien, 1090, Vienna, Austria

    A. Bartl, K. Hohenwarter-Sodek & T. Kernreiter

  2. Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany

    H. Fraas & S. Hesselbach

  3. TH Division, Physics Department, CERN, 1211, Geneva 23, Switzerland

    G. Moortgat-Pick

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  1. A. Bartl
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  2. H. Fraas
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  3. S. Hesselbach
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  6. G. Moortgat-Pick
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Correspondence to S. Hesselbach.

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Bartl, A., Fraas, H., Hesselbach, S. et al. CP asymmetries in chargino production and decay: the three-body decay case. Eur. Phys. J. C 51, 149–161 (2007). https://doi.org/10.1140/epjc/s10052-007-0279-6

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