Eur. Phys. J. C (2004) 36: 43-48
https://doi.org/10.1140/epjc/s2004-01873-6

theoretical physics

Diffractive large transferred momentum photoproduction of vector mesons

Naturwissenschaftlich-Theoretisches Zentrum und Institut für Theoretische Physik, Universität Leipzig, Augustusplatz 10, 04109, Leipzig, Germany

^* e-mail: Alexander.Ivanov@itp.uni-leipzig.de

Abstract

The large t behavior of the helicity amplitudes of diffractive photoproduction is estimated relying on models of the photon and meson light-cone wave functions and on the double-logarithmic approximation to the exchanged gluon interaction. The role of large-size color dipole contributions to the photon-meson transition impact factor is discussed.