13 citations · 17 across the 4 of their papers we have counts for
4 papers
On the ambiguity of field correlators represented by asymptotic perturbation expansions
Irinel Caprini, Jan Fischer, Ivo Vrkoč
Starting from the divergence pattern of perturbation expansions in Quantum Field Theory and the (assumed) asymptotic character of the series, we address the problem of ambiguity of…
Limited validity of West and Yennie integral formula for elastic scattering of hadrons
Vojtech Kundrat, Milos Lokajicek, Ivo Vrkoc
The commonly used West and Yennie integral formula for the relative phase between the Coulomb and elastic hadronic amplitudes might be consistently applied to only if the hadronic…
Operator product expansion and analyticity
Jan Fischer, Ivo Vrkoc
We discuss the current use of the operator product expansion in QCD calculations. Treating the OPE as an expansion in inverse powers of an energy-squared variable (with possible ex…
The operator-product expansion away from euclidean region
Jan Fischer, Ivo Vrkoc
The role of the operator-product expansion in QCD calculations is discussed. Approximating the two-point correlation function by several terms and assuming an upper bound on the tr…