Properties of predictive formulation of the Nambu–Jona–Lasinio model and the ghost problem
| Autor: | V.E. Rochev |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
High Energy Physics - Theory
Statistics and Probability Physics Meson FOS: Physical sciences General Physics and Astronomy Propagator Statistical and Nonlinear Physics Singularity High Energy Physics - Theory (hep-th) Modeling and Simulation Nambu–Jona-Lasinio model Regularization (physics) Landau pole Mathematical Physics Mathematical physics |
| Zdroj: | Journal of Physics A: Mathematical and Theoretical. 42:195403 |
| ISSN: | 1751-8121 1751-8113 |
| DOI: | 10.1088/1751-8113/42/19/195403 |
| Popis: | Recently proposed by Battistel et al. "predictive formulation of the NJL model" is discussed and its connection with the differential regularization is noted. The principal problem of this formulation is a non-physical singularity (Landau pole) in meson propagators. A modification of the formulation, which is free of the Landau pole and conserves main features of the approach, is proposed. Journal version (8 pages, no figures) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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