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The Supersymmetric Flavor Problem for Heavy First-Two Generation Scalars at Next-to-Leading Order

Roberto Contino·Ignazio Scimemi
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Abstract

We analyze in detail the constraints on SUSY-model parameters obtained from K-Kbar 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 previous results by including the NLO-QCD corrections to 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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Roberto Contino, Ignazio Scimemi. 1999-02-28. The Supersymmetric Flavor Problem for Heavy First-Two Generation Scalars at Next-to-Leading Order. https://doi.org/10.1007/s100520050597

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