Yukawa Corrections to Top Quark Production at the LHC in Two- Higgs-Doublet Models

Abstract
The O(alpha m_t^2/m_W^2) corrections to top quark pair production by gluon-gluon fusion at the LHC are calculated in two-Higgs-doublet models. We find that the correction to the cross-section can exceed about -10% for certain parameter values.

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