41 citations · 48 across the 2 of their papers we have counts for
17 papers
Perturbative corrections to the correlation functions of light tetraquark currents
S. Groote, J. G. Körner, D. Niinepuu
We calculate the next-to-leading order QCD corrections to the perturbative term in the operator product expansion of the spectral functions of light tetraquark currents. By using a…
The decays of on-shell and off-shell polarized gauge bosons into massive quark pairs at NLO QCD
S. Groote, J. G. Körner, P. Tuvike
We discuss the polar angle decay distribution in the decay of on-shell and off-shell polarized (W,Z) gauge bosons into massive quark pairs. In particular for the off-shell decays i…
Understanding perturbative results for decays of τleptons into hadrons
S. Groote, J. G. Körner, A. A. Pivovarov
We review some results obtained by us and others concerning the structure of higher order perturbation series in perturbative QCD and their resummation using the renormalization gr…
A numerical test of differential equations for one- and two-loop sunrise diagrams using configuration space techniques
S. Groote, J. G. Körner, A. A. Pivovarov
We use configuration space methods to write down one-dimensional integral representations for one- and two-loop sunrise diagrams (also called Bessel moments) which we use to numeri…
Calculating loops without loop calculations: NLO computation of pentaquark correlators
S. Groote, J. G. Körner, A. A. Pivovarov
We compute next-to-leading order (NLO) perturbative QCD corrections to the correlators of interpolating pentaquark currents. We employ modular techniques in configuration space whi…
Laurent series expansion of a class of massive scalar one-loop integrals up to ${\cal O}(\ep^2)$ in terms of multiple polylogarithms
J. G. Körner, Z. Merebashvili, M. Rogal
In a recent paper we have presented results for a set of massive scalar one-loop master integrals needed in the NNLO parton model description of the hadroproduction of heavy flavor…