Published September 18, 1989
| Version v1
Journal article
Nonperturbative dynamics of heavy quarkonia
Description
In the confining background field method (CBFM) the non-perturbative quark-antiquark interaction is expressed via the bilocal vacuum correlators D(x2+τ2) and D1(x2+τ2). The proper-time path-integral method of Schwinger and Feynman is used to derive systematically the nonrelativistic expansion of qanti q interaction including spin-dependent terms. The latter are very sensitive to D and D1. The potentials obtained reproduce main phenomenological features: Confinement, scalar-exchange-type spin-orbit and short-range spin-spin interaction. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics B, Particle Physics
- Journal Volume
- 324
- Journal Issue
- 1
- Series
- Nucl. Phys. B, Part. Phys.
- Journal Page Range
- 67-90
- ISSN
- 0550-3213
- CODEN
- NUPBB
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 21001076
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BAG MODEL; BOUND STATE; CORRELATION FUNCTIONS; CORRELATIONS; EIGENFUNCTIONS; EIGENSTATES; EXCHANGE INTERACTIONS; FEYNMAN PATH INTEGRAL; FUNCTIONAL ANALYSIS; GAUGE INVARIANCE; GREEN FUNCTION; INTERACTION RANGE; J-J COUPLING; L-S COUPLING; LORENTZ INVARIANCE; POTENTIALS; POWER SERIES; QUANTUM CHROMODYNAMICS; QUARK-ANTIQUARK INTERACTIONS; QUARKONIUM; SCHROEDINGER EQUATION; SPIN ORIENTATION; VACUUM STATES
- Descriptors DEC
- COUPLING; DIFFERENTIAL EQUATIONS; DISTANCE; EQUATIONS; EXTENDED PARTICLE MODEL; FIELD THEORIES; FUNCTIONS; INTEGRALS; INTERACTIONS; INTERMEDIATE COUPLING; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MATHEMATICS; ORIENTATION; PARTIAL DIFFERENTIAL EQUATIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; QUANTUM FIELD THEORY; SERIES EXPANSION; WAVE EQUATIONS