We study the corrections to epsilon(')/epsilon in the minimal supersymmetric model at the leading order in QCD and QED. Supersymmetry can increase the standard model prediction for epsilon(')/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(')/epsilon. For certain choices of supersymmetric parameters, vanishing and even small negative values of epsilon(')/epsilon can be obtained for the top quark in the CDF range.
SUPERSYMMETRIC CORRECTIONS TO EPSILON'/EPSILON AT THE LEADING ORDER IN QCD AND QED / Gabrielli, Emidio; G. F., Giudice. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 433:(1995), pp. 3-25. [10.1016/0550-3213(94)00400-9]
SUPERSYMMETRIC CORRECTIONS TO EPSILON'/EPSILON AT THE LEADING ORDER IN QCD AND QED
GABRIELLI, Emidio;
1995-01-01
Abstract
We study the corrections to epsilon(')/epsilon in the minimal supersymmetric model at the leading order in QCD and QED. Supersymmetry can increase the standard model prediction for epsilon(')/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(')/epsilon. For certain choices of supersymmetric parameters, vanishing and even small negative values of epsilon(')/epsilon can be obtained for the top quark in the CDF range.Pubblicazioni consigliate
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