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Non-Perturbative Regge Exchange in Meson-Meson Scattering: An Analysis Based on the Stochastic Vacuum Model
A. I. Karanikas, C. N. Ktorides
Employing the Worldline casting of the Dosch-Simonov Stochastic Vacuum Model(SVM) for QCD, a simulated meson-meson scattering is studied in the Regge kinematical regime. The proces…
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…
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…
N Delta - Transition Form Factors at Low Momentum Transfer
G. C. Gellas, T. R. Hemmert, C. N. Ktorides +1
The three complex form factors entering the vertex are calculated to in the framework of a chiral effective theory with explicit (1232) degrees of…
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…