Details

Autor(en) / Beteiligte

• Ben, F. G.
• Machado, M. V. T.
• Sauter, W. K.

Titel

Parton saturation scaling function for exclusive production of vector mesons and deeply virtual Compton scattering

Ist Teil von

• Physical review. D, 2017-09, Vol.96 (5), Article 054015

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We provide a universal expression of cross sections for the exclusive vector meson production and deeply virtual Compton scattering (DVCS) in photon-proton and photon-nucleus interactions based on the geometric scaling phenomenon. The theoretical parametrization based on the scaling property depends only on the single variable τA=Q2/Qsat2, where the saturation scale, Qsat, drives the energy dependence and the corresponding nuclear effects. This phenomenological result describes all available data from DESY-HERA for ρ,ϕ,J/ψ production and DVCS measurements. A discussion is also carried out on the size of nuclear shadowing corrections on photon-nucleus interaction.