A study of the reactions γ p →ω p and γ p →ω p and γ p →ωΔ +

LAMP Group, D. P. Barber, J. B. Dainton, L. C. Y. Lee,R. Marshall,J. C. Thompson,D. T. Williams,T. J. Brodbeck, G. Frost, G. N. Patrick,G. F. Pearce, D. Newton, T. Sloan,G. R. Brookes,W. J. Haynes, P. B. Wilkes

Zeitschrift für Physik C Particles and Fields（1984）

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摘要

The differential and total corss sections and the decay density matrix elements have been measured for the reactions, γp→ωp and γp→ωΔ+ (1232) in the photon energy range 2.8 to 4.8 GeV. The total cross sections for ωΔ+ (1232) photo-production are found to be slightly larger than those for elastic ω photo-production in this energy range. The data are compared to the predictions of a theoretical model and the contributing exchange mechanics are discussed.

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关键词

Field Theory, Theoretical Model, Matrix Element, Elementary Particle, Quantum Field Theory

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