Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-09-17
Eur.Phys.J.C10:347-356,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 Latex pages, 5 figures; Figs. 1,2 redrawn for K=0.22, section 4.1 revisited, references corrected. Submitted to European Jo
Scientific paper
10.1007/s100520050597
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%.
Contino Roberto
Scimemi Ignazio
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