DOI 10.1007/s100529900085
The supersymmetric-flavor problem for heavy first-two-generation scalars at next-to-leading order
R. Contino - I. Scimemi
Dipartimento di Fisica,
Università degli Studi di Roma "La Sapienza" and
INFN, Sezione di Roma, P.le A. Moro 2, I-00185 Roma, Italy
Received: 18 September 1998 / Revised version: 5 January 1999 / Published online: 3 August 1999
Abstract
We analyze in detail the constraints on SUSY-model
parameters obtained from 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 
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%.
Copyright Springer-Verlag
