1996/02/23 by S. Aïd, S. Aid, V. Andreev +98
Physics and Astronomy · #Astrophysics #Cross section (physics) #Electron #HERA #High-Energy Particle Collisions Research #Luminosity #Meson #Momentum (technical analysis) #Momentum transfer #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Scattering #Virtual particle #hep-ex
paper · pdf · doi:10.1016/0550-3213(96)00192-7
published as Nucl.Phys.B468:3-36,1996 · 29 pages, latex, 7 Figures appended as uuencoded file
arxiv created 1996/02/23 · openalex publication_date 1996/05/01 · arxiv updated 2009/11/30 · openalex created_date 2017/05/26 · openalex updated_date 2026/08/05
The total cross sections for the elastic electroproduction of \rh0 and J/Ψ mesons for Q2 > 8 GeV2 and <W > ≃ 90 GeV/c2 are measured at HERA with the H1 detector. The measurements are for an integrated electron-proton luminosity of ≃~3~pb-1. The dependences of the total virtual photon-proton (γ^* p) cross sections on Q2, W and the momentum transfer squared to the proton (t), and, for the ρ, the dependence on the polar decay angle (cos θ^*), are presented. The J/Ψ : \rh0 cross section ratio is determined. The results are discussed in the light of theoretical models and of the interplay of hard and soft physics processes.