Abstract.
We analyze in detail the constraints on SUSY-model parameters obtained from K–\(\overline{K}\) mixing in the hypothesis of a splitted SUSY spectrum. FCNC contributions from gluino–squark–quark interactions are studied in the so-called mass-insertion approximation. We present boundaries on mass insertions and on SUSY mass scales. We improve on previous results by including the NLO-QCD corrections to the \(\Delta S=2\) effective Hamiltonian and the complete set of B parameters for the evaluation of hadronic matrix elements. A full set of magic numbers that can be used for further analyses of these models is also given. We find that the inclusion of NLO-QCD corrections and the B parameters change the results obtained at LO and in the vacuum insertion approximation by an amount of about 25–35%.
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Received: 18 September 1998 / Revised version: 5 January 1999 / Published online: 3 August 1999
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Contino, R., Scimemi, I. The supersymmetric-flavor problem for heavy first-two-generation scalars at next-to-leading order. Eur. Phys. J. C 10, 347–356 (1999). https://doi.org/10.1007/s100529900085
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DOI: https://doi.org/10.1007/s100529900085