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

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

1995-09-25

arxiv.org/abs/hep-ph/9509379v1

Phys.Lett. B374 (1996) 80-86

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 17 pages, 3 uuencoded figures

Scientific paper

10.1016/0370-2693(96)00158-X

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 $\Delta F=1$ and $\Delta F=2$ effective hamiltonian for gluino mediated processes, including for the first time the effect of box diagrams in the evaluation of $\epsilon^{\prime}/\epsilon$. 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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