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Introduction of Anomalous Green Functions into Quantum Chromodynamics

✍ Scribed by Dr. J. Herrmann


Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
454 KB
Volume
500
Category
Article
ISSN
0003-3804

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✦ Synopsis


Ab s t rii ct. The nonperturbative vacuum structure of Quantum Chromodynamic is studied with the help of a generalization of the formalism of Green functions which corresponds t o the method of Gorkov and Nambu in the theory of superconductivity. Taking into account the existence of gluon condensation the selfenergy of the gluon-quasi-particles is calculated with the help of modified rules for Feynman diagrams. The resulting integral equations for the effective field parameters contain particiilar solutions with an energy gap in the spectrum of the quasi-particles and a phase transition a t a critical momentum.

Einfiihrang anomaler Greenscher Funktionen in die Quantenchromodynamik

I n h a l t s i i b e r s i c h t . Die nichtstorungstheoretische Vakuumstruktur der Quantenchromodynamik viird mit Hilfe einer Verallgemeinerung des Formalismus Greenscher Funktionen untersucht, die {dcr Methode von Gorkow und Nambu in der Theorie der Supraleitung entspricht. Unter Beriicksichtigung der Existenz der Gluonkondensation wird die Selbstenergie der Gluon-Quasi-Teilclien mit Hilfe modifizierter Feynman-Regeln berechnet. Daraus ergebcn sich Integralgleichungcn fur die cffektiven Feldparameter, die spezielle Losungen mit einer Energielucke im Spektrum der Quasi-'Teilchen und einen Phasenubergang bei einem kritischen Impuls enthalten.


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