On the higher-loop effective action in NJL model

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The 3-loop effective action and effective potential in Nambu - Jona-Lasinio model are calculated. The problem of vanishing contributions in the higher orders is discussed. The general form of such contributions is obtained.
13 pages, LATEX

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High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/55107

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/9709130
 http://arxiv.org/abs/hep-th/9709130

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arXiv