Supersymmetric corrections to $ε^\prime /εat the leading order in QCD and QED

Details Supersymmetric corrections to $ε^\prime /εat the leading order in QCD and QED Supersymmetric corrections to $ε^\prime /εat the leading order in QCD and QED

1994-07-29

arxiv.org/abs/hep-lat/9407029v1

Nucl.Phys.B433:3-25,1995; Erratum-ibid.b507:549,1997

Physics

High Energy Physics

High Energy Physics - Lattice

27 pages, CERN--TH.7381/94 AND PREP. N.1016/94

Scientific paper

10.1016/0550-3213(94)00400-9

We study the corrections to $\epsilon^\prime /\epsilon$ in the minimal supersymmetric model at the leading order in QCD and QED. Supersymmetry can increase the standard model prediction for $\epsilon^\prime /\epsilon$ by at most 40\% for $m_t=174$ GeV, an enhancement which is indistinguishable from the present theoretical uncertainties. The most conspicuous effect of supersymmetry is a strong depletion of $\epsilon^\prime /\epsilon$. For certain choices of supersymmetric parameters, vanishing and even small negative values of $\epsilon^\prime /\epsilon$ can be obtained for the top quark in the CDF range.

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