Is It Possible to Study the Wave Function of 2S Vector Mesons at HERA ?
arXiv:hep-ph/0011232 · doi:10.1023/A:1017596118003
Abstract
We present a short review of anomalous properties in diffractive photo- and electroproduction of radially excited V'(2S) vector mesons. Using the color dipole gBFKL phenomenology we analyze anomalous Q^{2} and energy dependence of the production cross section, V'(2S)/V(1S) production ratio, the diffraction slope and anomalous t behaviour of the differential cross section dσ/dt. The origin of these anomalies is based on the interplay of the nodal structure of V'(2S) radial wave function with the energy and dipole size dependence of the dipole cross section and the diffraction slope. We analyze how a different pattern of anomalous behaviour of V'(2S) production leads to a different position of the node in the wave function and discuss how that node position can be extracted from the data at HERA.
19 pages including 8 figures. Talk presented at the International Conference Hadron Structure '2000, Stara Lesna, Slovakia, October 2-7, 2000. To be published in the proceedings
References in corpus (3)
- The diffraction cone for exclusive vector meson production in deep inelastic scattering
- Anomalous t-dependence in diffractive electroproduction of 2S radially excited light vector mesons at HERA
- Color Dipole Systematics of the Diffraction Slope in Diffractive Photo- and Electroproduction of Vector Mesons