The Wave Function of 2S Radially Excited Vector Mesons from Data for Diffraction Slope
J. Nemchik
Abstract
In the color dipole gBFKL dynamics we predict a strikingly different Q2 and energy dependence of the diffraction slope for the elastic production of ground state V(1S) and radially excited V'(2S) light vector mesons. The color dipole model predictions for the diffraction slope for ρ0 and ϕ0 production are in a good agreement with the data from the fixed target and collider HERA experiments. We present how a different form of anomalous energy and Q2 dependence of the diffraction slope for V'(2S) production leads to a different position of the node in radial wave function and discuss a possibility how to determine this position from the fixed target and HERA data.
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