Asymptotic behavior of perturbation theory for the electromagnetic current-current correlation function in QCD

A simple and direct approach is used to examine the constraints imposed by asymptotic freedom and analytically on the large-order behavior of perturbaton theory for the current-current correlation function and its imaginary part which gives the {ital R} ratio in high-energy {ital e}{sup +-}{ital e{m...

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Veröffentlicht in:	Physical review. D, Particles and fields Particles and fields, 1992-01, Vol.45 (2), p.R398-R402
Hauptverfasser:	BROWN, L. S, YAFFE, L. G
Format:	Artikel
Sprache:	eng
Schlagworte:	662230 - Quantum Chromodynamics- (1992-) ALGEBRAIC CURRENTS ANNIHILATION BASIC INTERACTIONS Classical and quantum physics: mechanics and fields CORRELATION FUNCTIONS CROSS SECTIONS CURRENTS ELECTROMAGNETIC INTERACTIONS ELECTRON-POSITRON INTERACTIONS Exact sciences and technology FIELD THEORIES FOURIER TRANSFORMATION FUNCTIONS INTEGRAL TRANSFORMATIONS INTERACTIONS LEPTON-LEPTON INTERACTIONS PARTICLE INTERACTIONS PERTURBATION THEORY Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS QUANTUM CHROMODYNAMICS QUANTUM FIELD THEORY RENORMALIZATION SPECTRAL DENSITY SPECTRAL FUNCTIONS Theory of quantized fields TOTAL CROSS SECTIONS TRANSFORMATIONS
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Beschreibung
Zusammenfassung:	A simple and direct approach is used to examine the constraints imposed by asymptotic freedom and analytically on the large-order behavior of perturbaton theory for the current-current correlation function and its imaginary part which gives the {ital R} ratio in high-energy {ital e}{sup +-}{ital e{minus}} annihilation.
ISSN:	0556-2821 1089-4918
DOI:	10.1103/PhysRevD.45.R398