Yukawa corrections to top pair production in photon-photon collision
Abstract
The O(α mt2/mW2) Yukawa corrections to top pair production in photon-photon collision are calculated in the standard model (SM), the general two-Higgs-doublet model (2HDM) as well as the minimal supersymmetric model (MSSM). We found that the correction to the cross section can only reach a few percent in the SM, but can be quite significant (>10\%) in the 2HDM and MSSM for favorable parameter values, which may be observable at the high energy e+e- colliders.
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