Chiral symmetry breaking and the Lorentz nature of confinement

Journal Article · Mon Oct 01 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.074014· OSTI ID:21032341

Nefediev, A V; Simonov, Yu A ^[1]

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1. Institute of Theoretical and Experimental Physics, 117218, B. Cheremushkinskaya 25, Moscow (Russian Federation)

We address the question of the Lorentz nature of the effective interquark interaction in QCD which leads to the formation of the QCD string between color charges. In particular, we start from a manifestly vectorial fundamental interaction mediated by gluons and demonstrate that, as soon as chiral symmetry is broken spontaneously, the effective interquark interaction acquires a self-consistently generated scalar part which is eventually responsible for the formation of the QCD string. We demonstrate this explicitly for a heavy-light quarkonium, using the approach of the Schwinger-Dyson-type equation and the quantum-mechanical Hamiltonian method of the QCD string with quarks at the ends.

• OSTI ID: 21032341
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
CHIRAL SYMMETRY
COLOR MODEL
GLUONS
HAMILTONIANS
QUANTUM CHROMODYNAMICS
QUANTUM MECHANICS
QUARK-QUARK INTERACTIONS
QUARKONIUM
QUARKS
SCALARS
SCHWINGER FUNCTIONAL EQUATIONS
STRING MODELS
SYMMETRY BREAKING