Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-06-09
Phys.Lett. B366 (1996) 337-344
Physics
High Energy Physics
High Energy Physics - Phenomenology
plain LaTeX, 4 figures upon the request from kph154@zam001.zam.kfa-juelich.de
Scientific paper
10.1016/0370-2693(95)01359-8
In color dipole gBFKL dynamics, we describe the emerging gBFKL phenomenology of a subasymptotic energy dependence of the diffraction slope and discuss possibilities of testing the gBFKL predictions in exclusive photo- and electroproduction of vector mesons $V$ at HERA. A substantial shrinkage of the diffraction cone $\gamma^{*}p\rightarrow Vp$ processes from the CERN/FNAL to HERA range of energy $W$ is predicted. This subasymptotic shrinkage is faster than expected from the small slope of pomeron's Regge trajectory $\alpha_{\Pom}'$. We point out that the diffraction slope is a scaling function of $(m_{V}^{2}+Q^{2})$, what relates production of different vector mesons.
Nikolaev Nikolai N.
Zakharov Bronislav G.
Zoller Vladimir R.
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