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- Title
Effective chiral symmetry restoration in excited mesons.
- Authors
Wagenbrunn, R. F.
- Abstract
Results on the spectrum of ${\bar q} q$ mesons in a model with a linear Coulomb-like instantaneous confining potential are presented. The single-quark Green function as well as the dynamical chiral symmetry breaking are obtained from the Dyson-Schwinger (gap) equation. Given the dressed quark propagator, the spectrum of “usual” mesons, i.e., ${\bar q} q$ states with nonexotic quantum numbers J PC , is obtained from the Bethe-Salpeter equation. Effective restoration of chiral symmetry at large spins and/or radial excitations is observed and the states fall into approximate linear radial and angular Regge trajectories.
- Subjects
CHIRALITY of nuclear particles; PARTICLES (Nuclear physics); HADRONS; QUANTUM field theory; NUCLEAR physics
- Publication
Few-Body Systems, 2008, Vol 43, Issue 1-4, p241
- ISSN
0177-7963
- Publication type
Article
- DOI
10.1007/s00601-008-0237-3