30 citations · 31 across the 3 of their papers we have counts for
5 papers
Analyticity properties of three-point functions in QCD beyond leading order
A. P. Bakulev, A. I. Karanikas, N. G. Stefanis
The removal of unphysical singularities in the perturbatively calculable part of the pion form factor--a classic example of a three-point function in QCD--is discussed. Different `…
Non-perturbative corrections to perturbative results pertaining to a four-point Sudakov process in QCD
A. I. Karanikas, C. N. Ktorides
Within the framework of the Fock-Feynman-Schwinger (equivalently, worldline) casting of QCD a four-point process, mediated by a closed quark loop, is studied in the Sudakov kinemat…
A numerical algorithm for computing the complete set of one-gluon loop diagrams in QCD on the basis of a single master expression
A. S. Kapoyannis, A. I. Karanikas, C. N. Ktorides
A numerical program is presented which facilitates the computation of the full set of one-gluon loop diagrams (including ghost loop contributions), with M attached external gluon l…
Resummation of perturbatively enhanced gluon radiative corrections
A. I. Karanikas, C. N. Ktorides, N. G. Stefanis
By remaining strictly within the confines of QCD, i.e., {\it without} invoking the parton model or any other exogenous element, we identify and resum perturbatively to leading orde…
Worldline description of the Isgur-Wise function
N. G. Stefanis, A. I. Karanikas, C. N. Ktorides
An effective field theoretic description of the Isgur-Wise function in heavy-meson transitions is presented which emulates soft interactions by a fermion worldline with an infinite…