The existence of low-lying mesons as a consequence of confinement
| Autor: | M. Nagy, A. N. Ivanov, M. Schaler, Manfried Faber, N. I. Troitskaya |
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| Rok vydání: | 1994 |
| Předmět: |
Quantum chromodynamics
Physics Nuclear and High Energy Physics Particle physics Bethe–Salpeter equation Meson High Energy Physics::Lattice Nuclear Theory High Energy Physics::Phenomenology Scalar (mathematics) Pseudoscalar Quantum electrodynamics Mass spectrum High Energy Physics::Experiment Limit (mathematics) |
| Zdroj: | Physics Letters B. 336:555-559 |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/0370-2693(94)90572-x |
| Popis: | We use the Bethe-Salpeter equation for the investigation of the mass spectra of four nonets of low-lying mesons (pseudoscalar, scalar, vector and axial-vector) within QCD with a linearly rising potential. In leading order in the large- N expansion and in the chiral limit the mass spectra are found in agreement with those predicted by the extended Nambu-Jona-Lasinio model. We show that due to the confinement potential the nonets of vector and axial-vector mesons are stable under decays into quark-antiquark pairs. |
| Databáze: | OpenAIRE |
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