1/N expansion for Horava–Lifshitz like four-fermion models

Autor: M. Gomes, T. Mariz, J. R. Nascimento, A. Yu. Petrov, A. J. da Silva
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 80, Iss 6, Pp 1-7 (2020)
Druh dokumentu: article
ISSN: 1434-6044
1434-6052
DOI: 10.1140/epjc/s10052-020-8100-x
Popis: Abstract We study a class of four-fermion Gross–Neveu like models in four dimensions with critical exponents $$z=2$$ z=2 and $$z=3$$ z=3 . The models with $$z=2$$ z=2 are in general perturbatively nonrenormalizable but we show that there are in special cases renormalizable in the context of the 1/N expansion. We calculate explicitly the effective potential for these models.
Databáze: Directory of Open Access Journals
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