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arXiv · hep-ph/9509379

Flavour changing neutral currents and CP violating processes in generalized supersymmetric theories

E. Gabrielli·A. Masiero·L. Silvestrini
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Abstract

We consider supersymmetric extensions of the standard model with general non-universal soft breaking terms. We analyse in a model-independent way the constraints on these terms at the electroweak energy scale coming from gluino mediated flavour (F) changing neutral current and CP-violating processes. We have computed the complete $ΔF=1$ and $ΔF=2$ effective hamiltonian for gluino mediated processes, including for the first time the effect of box diagrams in the evaluation of $ε^{\prime}/ε$. We present numerical results for the constraints on these non-universal soft breaking terms for different values of the parameters, extending the analysis also to the leptonic sector. A comparison with previous results in the literature is given.

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E. Gabrielli, A. Masiero, L. Silvestrini. 1995-09-25. Flavour changing neutral currents and CP violating processes in generalized supersymmetric theories. https://doi.org/10.1016/0370-2693(96)00158-x

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