Vacuum behavior in quantum chromodynamics

The behavior of the vacuum in quantum chromodynamics is investigated by calculating quantum fluctuations of the gluon field in general constant background fields. One-loop contributions to the effective action result in a positive-definite imaginary part, indicating instability of the vacuum for all...

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Veröffentlicht in:	Phys. Rev., D; (United States) D; (United States), 1980-01, Vol.21 (4), p.1095-1099
Hauptverfasser:	Yildiz, Asim, Cox, Paul H.
Format:	Artikel
Sprache:	eng
Schlagworte:	645201 - High Energy Physics- Particle Interactions & Properties-Theoretical- General & Scattering Theory 645400 - High Energy Physics- Field Theory BAG MODEL COLOR MODEL COMPOSITE MODELS DIFFERENTIAL EQUATIONS ELEMENTARY PARTICLES EQUATIONS EQUATIONS OF MOTION EXTENDED PARTICLE MODEL FIELD THEORIES FUNCTIONS GAUGE INVARIANCE GLUONS INVARIANCE PRINCIPLES LAGRANGIAN FUNCTION LIE GROUPS MATHEMATICAL MODELS PARTICLE MODELS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS POSTULATED PARTICLES QUANTUM CHROMODYNAMICS QUANTUM FIELD THEORY QUARK MODEL SU GROUPS SU-3 GROUPS SYMMETRY GROUPS VACUUM STATES YANG-MILLS THEORY
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Beschreibung
Zusammenfassung:	The behavior of the vacuum in quantum chromodynamics is investigated by calculating quantum fluctuations of the gluon field in general constant background fields. One-loop contributions to the effective action result in a positive-definite imaginary part, indicating instability of the vacuum for all values of background electric- and magnetic-type field strengths.
ISSN:	0556-2821
DOI:	10.1103/PhysRevD.21.1095