Landau ghost pole problem in quantum field theory: From 50th of last century to the present day

Autor:	R. G. Jafarov, M. M. Mutallimov
Rok vydání:	2016
Předmět:	Physics Classical mechanics Amplitude Scalar field theory Scheme (mathematics) Fermion Present day Quantum field theory Nonlinear integral equation
Zdroj:	AIP Conference Proceedings.
ISSN:	0094-243X
DOI:	10.1063/1.4944122
Popis:	In this paper we present our results of the investigation of asymptotical behavior of amplitude at short distances in four-dimensional scalar field theory with ϕ4 interaction. To formulate of our calculating model – two-particle approximation of the mean-field expansion we have used an Rochev’s iteration scheme of solution of the Schwinger-Dyson equations with the fermion bilocal source. We have considered the nonlinear integral equations in deep-inelastic region of momenta. As result we have a non-trivial behavior of amplitude at large momenta.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eda739f513c15fdba6b4f98bf210739f https://doi.org/10.1063/1.4944122 Zobrazit plný text záznamu