Photoproduction of J/psi mesons in the peripheral model. The diffraction mechanism
An analysis is made of a mechanism for the photoproduction of J/psi mesons on nucleons with an imaginary amplitude that arises as the shadow of the amplitudes for the photoproduction of charmed particles. It is possible to describe the experimental data by means of this mechanism only if at moderate energies E/sub ..gamma../GeV a major role is played by processes involving the production of a charmed baryon and meson or a pair of charmed mesons in a resonant state, while at high energies the dominant processes involve the photoproduction of pairs of charmed mesons accompanied by hadrons, with a cross section that exceeds the cross section for the photoproduction of psi mesons by more than an order of magnitude.
- Research Organization:
- Institute of Theoretical and Experimental Physics, State Atomic Energy Commission
- OSTI ID:
- 7281438
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 25:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PSI RESONANCES
PHOTOPRODUCTION
CHARM PARTICLES
DIFFRACTION MODELS
GEV RANGE 10-100
PERIPHERAL MODELS
BASIC INTERACTIONS
BOSONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
HADRONS
INTERACTIONS
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
RESONANCE PARTICLES
VECTOR MESONS
645202* - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties