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https://hdl.handle.net/10316/110975
Title: | Meson loop corrections to the NJL model | Authors: | Peña, Francisco Nemes, Maria Carolina Blin, Alex H. Hiller, B. |
Issue Date: | 1999 | Publisher: | Springer Nature | Serial title, monograph or event: | Brazilian Journal of Physics | Volume: | 29 | Issue: | 3 | Abstract: | We present a symmetry preserving approach to 1=N (N being the number of colors) corrections in the Nambu-Jona-Lasinio model. This is achieved through an explicit 1=N expansion where N is considered as a free parameter. Veri cation and use of the pertinent Ward identity to the next to leading order in 1=N is made in obtaining the Goldberger-Treiman relation. Although the present results are not new, the approach may be useful for deriving higher (than one loop) corrections to the NJL model in a systematic way. | URI: | https://hdl.handle.net/10316/110975 | ISSN: | 0103-9733 | DOI: | 10.1590/S0103-97331999000300011 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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Meson-loop-corrections-to-the-NJL-modelBrazilian-Journal-of-Physics.pdf | 182.41 kB | Adobe PDF | View/Open |
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