Dynamical symmetry restoration for a higher-derivative four-fermion model in an external electromagnetic field

Elizalde, E.; Gavrilov, Serguei; Odintsov, S. D.; Shil'nov, Yu. I.

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	Elizalde, E.	-
dc.contributor.author	Gavrilov, Serguei	-
dc.contributor.author	Odintsov, S. D.	-
dc.contributor.author	Shil'nov, Yu. I.	-
dc.date.accessioned	2024-10-15T13:33:35Z	-
dc.date.available	2024-10-15T13:33:35Z	-
dc.date.issued	2000	-
dc.identifier.citation	ELIZALDE, E. et al. Dynamical symmetry restoration for a higher-derivative four-fermion model in an external electromagnetic field. Brazilian Journal of Physics, São Paulo, v. 30, n. 3, p. 573-580, set. 2000. Disponível em: https://www.scielo.br/j/bjp/a/ZtJvbZMVhStHsq5Jymwq9Cn/?format=pdf&lang=en. Acesso em: 15 out. 2024.	pt_BR
dc.identifier.issn	0103-9733	-
dc.identifier.issn	1678-4448	-
dc.identifier.uri	https://ri.ufs.br/jspui/handle/riufs/20277	-
dc.language	eng	pt_BR
dc.publisher	Sociedade Brasileira de Física	pt_BR
dc.relation.ispartof	Brazilian Journal of Physics	pt_BR
dc.subject	Magnetic field	eng
dc.subject	Broken symmetry	eng
dc.subject	Finite-temperature	eng
dc.subject	Electromagnetic field	eng
dc.subject	Campo eletromagnético	por
dc.title	Dynamical symmetry restoration for a higher-derivative four-fermion model in an external electromagnetic field	pt_BR
dc.type	Artigo	pt_BR
dc.identifier.license	Creative Commons Atribuição-NãoComercial 4.0 Internacional (CC BY-NC 4.0)	pt_BR
dc.description.resumo	A four-fermion model with additional higher-derivative terms is investigated in an external electromagnetic field. The effective potential in the leading order of large-N expansion is calculated in external constant magnetic and electric fields. It is shown that, in contrast to the former results concerning the universal character of "magnetic catalysis" in dynamical symmetry breaking, in the present higher-derivative model the magnetic field restores chiral symmetry broken initially on the tree level. Numerical results describing a second-order phase transition that accompanies the symmetry restoration at the quantum level are presented.	pt_BR
dc.description.local	São Paulo, SP	pt_BR
Aparece en las colecciones:	DFI - Artigos de periódicos

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