651 citations · 15.8k across the 213 of their papers we have counts for
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Complete Corrections of O(αα_s) to the Decay of the Z Boson into Bottom Quarks
R. Harlander, T. Seidensticker, M. Steinhauser
For the vertex corrections to the partial decay rate involving the top quark only the leading terms of order in the expansion are known. In this…
O(α_s^2) Corrections to Current Correlators
M. Steinhauser
In this contribution three-loop QCD corrections to current correlators are considered. The application of the large momentum procedure, which provides a systematic expansion in $(m…
Higher Order Corrections to the Hadronic Higgs Decay
M. Steinhauser
A Higgs boson in the intermediate mass range is considered. An effective Lagrangian approach is used in order to evaluate the top-induced QCD corrections of order to the de…
Decoupling Relations to O(alpha_s^3) and their Connection to Low-Energy Theorems
K. G. Chetyrkin, B. A. Kniehl, M. Steinhauser
If quantum chromodynamics (QCD) is renormalized by minimal subtraction (MS), at higher orders, the strong coupling constant alpha_s and the quark masses m_q exhibit discontinuities…
Strong Coupling Constant with Flavour Thresholds at Four Loops in the MS-bar Scheme
K. G. Chetyrkin, B. A. Kniehl, M. Steinhauser
We present in analytic form the matching conditions for the strong coupling constant alpha_s^(n_f)(mu) at the flavour thresholds to three loops in the modified minimal-subtraction…
Heavy Quark Current Correlators to O(α_s^2)
K. G. Chetyrkin, J. H. Kühn, M. Steinhauser
In this paper the three-loop polarization functions Π(q^2) are calculated for the cases of an external vector, axial-vector, scalar or pseudo-scalar current. Results are presented…