Journal
PHYSICS LETTERS B
Volume 548, Issue 3-4, Pages 161-174Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0370-2693(02)02845-9
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We compare the predictions of the collinear parton model and the k(T)-factorization approach in J/psi and D* meson photoproduction at HERA energies. It is shown that obtained D* meson spectra over P-T and eta are very similar in the parton model and k(T)-factorization approach and they underestimate the experimental data. Opposite, the predictions of the both approaches for P-T- and z-spectra in the J/psi photoproduction are very different as well as the prediction obtained for the spin parameter alpha (P-T) (C) 2002 Elsevier Science B.V. All rights reserved.
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