2000/07/25 by E. Gotsman, Evandro Maia Ferreira, Gotsman, E. +6
Computer Science · Physics and Astronomy · #Advanced Data Storage Technologies #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.hep-ph/0007274
openalex publication_date 2000/07/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this investigation we present a detailed study of ∂ F2/∂ ln Q2 which is supported by a coupled analysis of J/Ψ photo and DIS production. Both channels are directly proportional to xG(x,Q2), and as such serve as excellent discriminators between different approaches and models. We then show that taking GRV98NLO as input and correcting it for SC, we can reproduce the recent HERA data well. The calculation depends on one parameter R2=8.5GeV-2 which is directly determined from the J/Ψ photoproduction forward differential slope. With this input we obtain an excellent fit to the J/Ψ photo and DIS production data. Our calculations made in the LLA of pQCD take into account the corrections implied by the real part of the production amplitude, off diagonal (skewed) gluon distributions and the Fermi motion of the charm quarks within the bound Charmonium system.