Magnetic string contribution to hadron dynamics in QCD

Abstract

Dynamics of a light quark in the field of static source (heavy-light meson) is studied using the nonlinear Dirac equation, derived recently. Special attention is paid to the contribution of magnetic correlators and it is found that it yields a significant increase of string tension at intermediate distances. The spectrum of heavy-light mesons is computed with account of this contribution and compared to experimental and lattice data.

10 pages Revtex

References in corpus (5)

• Casimir scaling as a test of QCD vacuum
• Scaling of the B and D meson spectrum in lattice QCD
• Heavy-light Mesons and Baryons with b quarks
• String formation and chiral symmetry breaking in the heavy-light quark-antiquark system in QCD
• The gauge invariant quark correlator in QCD sum rules and lattice QCD

Cited by in corpus (12)

• QCD string in light-light and heavy-light mesons
• The coupled-channel analysis of the D and D_s mesons
• Decay constants of the heavy-light mesons from the field correlator method
• Chiral Lagrangian with confinement from the QCD Lagrangian
• The Feynman-Schwinger representation in QCD
• Two-dimensional QCD in the Coulomb gauge
• Magnetic branes in Gauss-Bonnet gravity with nonlinear electrodynamics: correction of magnetic branes in Einstein-Maxwell gravity
• The chiral transitions in heavy-light mesons
• Baryon magnetic moments in the effective quark Lagrangian approach
• Operator product expansion and confinement
• Comment on the proper QCD string dynamics in a heavy-light system
• Effects of perturbative exchanges in a QCD-string model