Chiral symmetry breaking in QCD with linearly rising confinement potential
| Autor: | A. N. Ivanov, M. Nagy, N. I. Troitskaya, Manfried Faber, M. Schaler |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Quark
Quantum chromodynamics Physics High Energy Physics::Lattice Spontaneous symmetry breaking Nuclear Theory High Energy Physics::Phenomenology Radius String (physics) Explicit symmetry breaking Quantum electrodynamics Quasiparticle High Energy Physics::Experiment Chiral symmetry breaking Particle Physics - Theory |
| Zdroj: | Il Nuovo Cimento A. 107:1667-1678 |
| ISSN: | 1826-9869 0369-3546 |
| DOI: | 10.1007/bf02780699 |
| Popis: | Chiral symmetry breaking is explored within QCD with linearly rising confinement potential at the Nambu-Jona-Lasinio (NJL) prescription. The dynamical quark mass is obtained from the gap equation in terms of the string tension σ, σ,i.e.m=2蜰σ/π=0.33 GeV at σ=0.27 GeV2. The phenomenological constants of the NJL local four-quark interactionsG1 andG2 are found equal and expressed in terms of the string tension and the confinement radius. It is shown that the spectra of low-lying quark-antiquark collective excitations coincide with those predicted by the NJL model. |
| Databáze: | OpenAIRE |
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