Eur. Phys. J. C 23, 195-199 (2002)
https://doi.org/10.1007/s100520100833

CP violation and extra dimensions

¹ Institute of Theoretical Physics, Academia Sinica, P.O. Box 2735, Beijing 100080, P.R. China
² Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104-6396, USA
³ Physics Department of Tsinghua University, Beijing, P.R. China
⁴ Center for Subatomatic Structure of Matter at Adelaide University, Adelaide, Australia

Received: 10 October 2001
Published online: 20 December 2001

Abstract

It is shown that new sources of CP violation can be generated in models with more than one extra dimension. In the supersymmetric models on the space-time M⁴ × T²/Z₂, where the radius moduli have auxiliary vacuum expectation values and the supersymmetry breaking is mediated by the Kaluza--Klein states of the gauge supermultiplets, we analyze the gaugino masses and trilinear couplings for two scenarios and obtain the result that there exist relative CP violating phases among the gaugino masses and trilinear couplings.