QCD Corrections to Flavor-Changing Neutral Currents in the Supersymmetric Standard Model
High Energy Physics - Phenomenology
2009-10-09 v3
Abstract
We compute the leading QCD corrections to K-Kbar mixing in the supersymmetric standard model with general soft supersymmetry-breaking parameters. We construct the \Delta S=2 effective Lagrangian for three hierarchies of supersymmetric particle masses, namely, when the gluino mass is comparable to, much greater than, or much less than the masses of the first two generation squarks. We find that the QCD corrections tighten the limits on squark mass splittings by more than a factor of two.
Keywords
Cite
@article{arxiv.hep-ph/9707225,
title = {QCD Corrections to Flavor-Changing Neutral Currents in the Supersymmetric Standard Model},
author = {Jonathan A. Bagger and Konstantin T. Matchev and Ren-Jie Zhang},
journal= {arXiv preprint arXiv:hep-ph/9707225},
year = {2009}
}
Comments
14 pages, Latex. Version to be published in Phys. Lett. B