Matches in SemOpenAlex for { <https://semopenalex.org/work/W2056222011> ?p ?o ?g. }
- W2056222011 abstract "In this work corrections to low energy punctual effective quark couplings up to the eighth order are calculated by considering vacuum polarization effects with the scalar quark-antiquark condensate. The departing point is a QCD-based Nambu--Jona-Lasinio model. By separating the quark field into two components, one that condenses and another one for interacting quarks, the former is integrated out with the help of usual auxiliary fields and an effective action in terms of interacting quark fields is found. The scalar auxiliary field reduces to the quark-antiquark condensate in the vacuum and the determinant is expanded in powers of the quark-antiquark bilinears generating chiral invariant effective 2N-quark interactions ($N=2,3dots{}$). The corresponding coupling constants and effective masses are estimated, and the general trend is that for increasing the effective gluon mass the values of the effective coupling constants decrease. All the values are in good agreement with phenomenological fits." @default.
- W2056222011 created "2016-06-24" @default.
- W2056222011 creator A5019529475 @default.
- W2056222011 creator A5048610209 @default.
- W2056222011 date "2014-07-25" @default.
- W2056222011 modified "2023-10-07" @default.
- W2056222011 title "Vacuum polarization corrections to low energy quark effective couplings" @default.
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- W2056222011 doi "https://doi.org/10.1103/physrevd.90.014049" @default.
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