Meson contributions in the Nambu-Jona-Lasinio model
| Autor: | V. E. Rochev |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Quark
Physics Particle physics Meson High Energy Physics::Lattice Nuclear Theory High Energy Physics::Phenomenology Propagator Statistical and Nonlinear Physics Function (mathematics) Identity (music) Symmetry (physics) Legendre transformation High Energy Physics::Theory symbols.namesake Nambu–Jona-Lasinio model symbols Mathematical Physics Mathematical physics |
| Zdroj: | Theoretical and Mathematical Physics. 159:488-498 |
| ISSN: | 1573-9333 0040-5779 |
| DOI: | 10.1007/s11232-009-0039-x |
| Popis: | We discuss the problem of calculating corrections to the mean-field approximation in the Nambu-Jona-Lasinio model. To calculate such corrections, we propose using the method of the Legendre transformation with respect to a bilocal source, which allows taking symmetry constraints related to the chiral Ward identity into account effectively. Using the proposed method, we determine the corrections to the quark propagator and the two-particle quark function. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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