arXiv:hep-ph/9702338·v1·High Energy Physics — Phenomenology
Dimensional structural constants from chiral and conformal bosonization of QCD
A. A. Andrianov (1) · V. A. Andrianov (1) · D. Ebert (2)🇩🇪 · Th. Feldmann (2). ((1) Sankt-Petersburg State University, Russia, (2) Humboldt-University Berlin, Germany)
Abstract
We derive the dimensional non-perturbative part of the QCD effective action for scalar and pseudoscalar meson fields by means of chiral and conformal bosonization. The related structural coupling constants L_5 and L_8 of the chiral lagrangian are estimated using general relations which are valid in a variety of chiral bosonization models without explicit reference to model parameters. The asymptotics for large scalar fields in QCD is elaborated, and model-independent constraints on dimensional coupling constants of the effective meson lagrangian are evaluated. We determine also the interaction between scalar quarkonium and the gluon density and obtain the scalar glueball-quarkonium potential.
Comments: 21 pages, LaTeX