Non-perturbative gluons in diffractive photo-production of J/Psi

Abstract

The modifications induced in the calculation of the cross section of the diffractive process gamma gamma -> J/Psi J/Psi when the gluon propagator is changed are analyzed. Instead of the usual perturbative gluon propagator, alternative forms obtained using non-perturbative methods like Dyson-Schwinger equations are used to consider in a more consistent way the contributions of the infrared region. The result shows a reduction in the differential cross-section for low momentum transfer once compared with the perturbative result, to be confirmed with future experimental results from TESLA.

17 pages, 5 figures, RevTex, Accepted for publication in Phys. Lett. B

References in corpus (3)

• The Gluon Propagator without lattice Gribov copies
• The Gluon Propagator
• Relating the Quark and Gluon Condensates Through the QCD Vacuum Energy

Cited by in corpus (6)

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• The $\gamma \gamma \to J/\psi J/\psi$ reaction and the $J/\psi J/\psi$ pair production in exclusive ultraperipheral ultrarelativistic heavy ion collisions
• Double vector meson production from the BFKL equation
• Meson Form Factors and Non-Perturbative Gluon Propagators
• Nonperturbative gluon exchange in $pp$ elastic scattering at TeV energies
• Gluon propagator in diffractive scattering