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CP Violation in Unpolarized e+e−→ Charginos at One-Loop Level

P. Osland1,* and A. Vereshagin1,2,†

  • 1Department of Physics and Technology, Postboks 7803, N-5020 Bergen, Norway
  • 2Theoretical Physical Department, Institute of Physics, St. Petersburg State University, St. Petersburg, Petrodvoretz, 198504, Russia

  • *Per.Osland@ift.uib.no
  • †Alexander.Vereshagin@ift.uib.no
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Phys. Rev. D 76, 036001 – Published 3 August, 2007Erratum Phys. Rev. D 76, 119902 (2007)

DOI: https://doi.org/10.1103/PhysRevD.76.036001

Abstract

We study CP violation in e+e−→χ˜i+χ˜j− in the framework of the minimal supersymmetric standard model. Though the cross section of this process is CP-even at the tree level even for polarized electron-positron beams, we show that it contains a CP-odd part at one-loop order and there are CP-odd observables that can in principle be measured even using unpolarized electron-positron beams. The relevant diagram calculations are briefly discussed, and the results of selected (box) diagram computations are shown.

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Erratum

Erratum: CP violation in unpolarized e+e−→charginos at one-loop level [Phys. Rev. D 76, 036001 (2007)]

P. Osland and A. Vereshagin
Phys. Rev. D 76, 119902 (2007)

Article Text

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Phys. Rev. D 76, 036001– Published 3 August, 2007
  • Received 20 April 2007

© 2007 American Physical Society

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