Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-10-07
Phys.Rev.D79:065005,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
37 pages, 1 figure. Final version to appear in Phys.Rev.D
Scientific paper
10.1103/PhysRevD.79.065005
The Stochastic Vacuum Model for QCD, proposed by Dosch and Simonov, is fused with a Worldline casting of the underlying theory, i.e. QCD. Important, non-perturbative features of the model are studied. In particular, contributions associated with the spin-field interaction are calculated and both the validity of the loop equations and of the Bianchi identity are explicitly demonstrated. As an application, a simulated meson-meson scattering problem is studied in the Regge kinematical regime. The process is modeled in terms of the "helicoidal" Wilson contour along the lines introduced by Janik and Peschanski in a related study based on a AdS/CFT-type approach. Working strictly in the framework of the Stochastic Vacuum Model and in a semiclassical approximation scheme the Regge behavior for the Scattering amplitude is demonstrated. Going beyond this approximation, the contribution resulting from boundary fluctuation of the Wilson loop contour is also estimated.
Karanikas Alexandros I.
Ktorides C. N.
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