Stationary phase corrections in the process of bosonization of multi-quark interactions

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dc.creatorOsipov, Alexander A.
dc.creatorHiller, Brigitte
dc.creatorMoreira, Joao
dc.creatorBlin, Alex H.
dc.date2006-01-10
dc.date.accessioned2026-07-07T12:25:23Z
dc.date.available2026-07-07T12:25:23Z
dc.descriptionThe functional integration over the auxiliary bosonic variables of cubic order related with the effective action of the Nambu -- Jona-Lasinio model with 't Hooft term has recently been obtained in the form of a loop expansion. Even numbers of loops contribute to the action, while odd numbers of loops are assigned to the measure. We consider the two-loop corrections and analyse their effect on the low-lying pseudoscalar and scalar mass spectra, quark condensates and weak decay constants. The results are compared to the leading order calculations and other approaches.
dc.description22 pages, LaTeX, to appear in European Physics Journal C
dc.identifierhttps://arxiv.org/abs/hep-ph/0601074
dc.identifierhttp://arxiv.org/abs/hep-ph/0601074
dc.identifierEur.Phys.J.C46:225-233,2006
dc.identifierdoi:10.1140/epjc/s2006-02488-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214596
dc.subjectHigh Energy Physics - Phenomenology
dc.titleStationary phase corrections in the process of bosonization of multi-quark interactions
dc.typetext

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