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arXiv · hep-ph/9506281

Exploratory study of shrinkage of the diffraction cone for the generalized BFKL pomeron

N. N. Nikolaev·B. G. Zakharov·V. R. Zoller
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Abstract

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 $γ^{*}p\rightarrow Vp$ 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 $α_{\Pom}'$. We point out that the diffraction slope is a scaling function of $(m_{V}^{2}+Q^{2})$, what relates production of different vector mesons.

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N. N. Nikolaev, B. G. Zakharov, V. R. Zoller. 1995-06-09. Exploratory study of shrinkage of the diffraction cone for the generalized BFKL pomeron. https://doi.org/10.1016/0370-2693(95)01359-8

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