Diffractive photoproduction of vector mesons at large momentum transfer

Details Diffractive photoproduction of vector mesons at large momentum transfer Diffractive photoproduction of vector mesons at large momentum transfer

2004-07-28

arxiv.org/abs/hep-ph/0407328v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at "DIS 2004: XII International Workshop on Deep Inelatic Scattering" (Strbske Pleso, Slovakia, April 2004). 6 page

Scientific paper

Diffractive photoproduction of rho, phi and J/psi was studied in the BFKL approach to hard colour singlet exchange. Differential cross sections, the energy dependence and spin density matrix elements were calculated and compared to data from HERA. The overall description of data is reasonably good, except of the single flip amplitude which has the wrong sign. Importance of chiral odd components of the photon is stressed.

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