177 citations · 403 across the 5 of their papers we have counts for
5 papers
Heavy-Quark Form Factors and Threshold Cross Section at O(α_S^2)
W. Bernreuther, R. Bonciani, T. Gehrmann +4
During the last year, analytic expressions for the two-loop QCD corrections to the form factors for the vector, axial-vector, scalar and pseudo-scalar vertices involving a pair of…
QCD Corrections to Static Heavy Quark Form Factors
W. Bernreuther, R. Bonciani, T. Gehrmann +4
Interactions of heavy quarks, in particular of top quarks, with electroweak gauge bosons are expected to be very sensitive to new physics effects related to electroweak symmetry br…
Two-Loop QCD Corrections to the Heavy Quark Form Factors: Anomaly Contributions
W. Bernreuther, R. Bonciani, T. Gehrmann +3
We present closed analytic expressions for the order triangle diagram contributions to the matrix elements of the singlet and non-singlet axial vector currents between the…
Two-Loop QCD Corrections to the Heavy Quark Form Factors: Axial Vector Contributions
W. Bernreuther, R. Bonciani, T. Gehrmann +4
We consider the Z Q Qbar vertex to second order in the QCD coupling for an on-shell massive quark-antiquark pair and for arbitrary momentum transfer of the Z boson. We present clos…
Two-loop QCD Corrections to the Heavy Quark Form Factors: the Vector Contributions
W. Bernreuther, R. Bonciani, T. Gehrmann +4
We present closed analytic expressions of the electromagnetic vertex form factors for heavy quarks at the two-loop level in QCD for arbitrary momentum transfer. The calculation is…