Single-Top-Quark Production via W-Gluon Fusion at Next-to-Leading Order

Details Single-Top-Quark Production via W-Gluon Fusion at Next-to-Leading Order Single-Top-Quark Production via W-Gluon Fusion at Next-to-Leading Order

1997-05-22

arxiv.org/abs/hep-ph/9705398v2

Phys.Rev. D56 (1997) 5919-5927

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 9 figures, small update to Phys. Rev. D version

Scientific paper

10.1103/PhysRevD.56.5919

Single-top-quark production via W-gluon fusion at hadron colliders provides an opportunity to directly probe the charged-current interaction of the top quark. We calculate the next-to-leading-order corrections to this process at the Fermilab Tevatron, the CERN Large Hadron Collider, and DESY HERA. Using a b-quark distribution function to sum collinear logarithms, we show that there are two independent corrections, of order 1/[ln(m_t^2/m_b^2)] and alpha_s. This observation is generic to processes involving a perturbatively derived heavy-quark distribution function at an energy scale large compared with the heavy-quark mass.

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