منابع مشابه
High Energy Photoproduction
The study of photoproduction reactions has gained a unique opportunity with the HERA data. The high center of mass energy allows to carry out quantitative tests of QCD, to explore the substructure of both the photon and the proton and to shed new light on soft and diffractive processes. In this report we review the HERA results, comparing them with the reach of fixed target photoproduction expe...
متن کاملA Multi - Regge Model Applied to High - Energy Inclusive Photoproduction
T’ We compare inclusive photoproduction dat$ in the energy range :, ,*.z 3 E Y = 9.0 18.0 GeV to the multi-Regge.. model. ,,The model jncorporates vector-dominance coupling of the photon, the ChewPignotti algorithm for charge as signrnent, and correct treatment of n-bodyphase space. A technique of ordering the particles according to longitudinal momentum is used to enhance features of the data ...
متن کاملOn charmonia and charmed mesons photoproduction at high energy
In this report we compare the predictions of the collinear parton model and the kT -factorization approach in J/Ψ and D ⋆ meson photoproduction at HERA energies. It is shown that obtained D⋆ meson spectra over pT and η are very similar in the parton model and kT -factorization approach and they underestimate the experimental data. Opposite, the predictions of the both approaches for pT and z-sp...
متن کاملSe p 20 05 High Energy Photoproduction J . M . Butterworth
The experimental and phenomenological status of high energy photoproduction is reviewed. Topics covered include the structure of the photon, production of jets, heavy flavours and prompt photons, rapidity gaps, energy flow and underlying events. The results are placed in the context of the current understanding of QCD, with particular application to present and future hadron and lepton colliders.
متن کاملLow energy kaon photoproduction from nuclei ∗
We study K +-meson production in γA interaction at energies below the reaction threshold in free space. The Thomas-Fermi and spectral function approaches are used for the calculations of the production process. It is found that the measurement of the differential spectra may allow to reconstruct the production mechanism and to investigate the dispersion relations entering the production vertex....
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ژورنال
عنوان ژورنال: La Rivista del Nuovo Cimento
سال: 1997
ISSN: 1826-9850
DOI: 10.1007/bf02880922