Supersymmetric corrections to ε′ /εat the leading order in QCD and QED
Gabrielli, E. · Giudice, G. F.
Original · EN
We study the corrections to ε′ /ε in the minimal supersymmetric model at the leading order in QCD and QED. Supersymmetry can increase the standard model prediction for ε′ /ε by at most 40% for mₜ=174 GeV, an enhancement which is indistinguishable from the present theoretical uncertainties. The most conspicuous effect of supersymmetry is a strong depletion of ε′ /ε. For certain choices of supersymmetric parameters, vanishing and even small negative values of ε′ /ε can be obtained for the top quark in the CDF range.
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