Incoherent diffractive photoproduction of J/ψ and Υ on heavy nuclei in the color dipole approach

2017/12/12 by A. Łuszczak, Agnieszka Łuszczak, Wolfgang Schäfer · 2 citations
Physics and Astronomy · #Computer science #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevc.97.024903

published as Phys. Rev. C 97, 024903 (2018) · 18 pages, 8 figs

arxiv created 2017/12/12 · openalex created_date 2017/12/22 · openalex publication_date 2018/02/09 · arxiv updated 2018/02/14 · openalex updated_date 2026/08/05

Abstract

We calculate cross sections and transverse momentum distributions for the incoherent diffractive production of vector mesons J/\ensuremathψ and \mathrm\ensuremathΥ on heavy nuclei. In distinction to coherent diffraction, the nucleus is allowed to break up, but except for the vector meson no new particles are produced in the reaction. Within the color dipole approach, we derive the multiple scattering expansion of the incoherent diffractive cross section as an expansion over quasielastic scatterings of the color dipole. We also compare our results to the measurement of the ALICE Collaboration for incoherent J/\ensuremathψ production at √s_NN=2.76\phantom\rule0.16em0exTeV and show predictions at √s_NN=5.02\phantom\rule0.16em0exTeV. We also briefly discuss a possible contribution to J/\ensuremathψ production in peripheral collisions in the 70--90% centrality class.

Citations

• Coherent γγ and γA interactions in very peripheral collisions at relativistic ion colliders
• Saturation effects in deep inelastic scattering at lowQ2and its implications on diffraction
• Exclusive diffractive processes at HERA within the dipole picture
• PHYSICS OF ULTRA-PERIPHERAL NUCLEAR COLLISIONS
• The hadronic properties of the photon in high-energy interactions
• Combination of Measurements of Inclusive Deep Inelastic e^±p Scattering Cross Sections and QCD Analysis of HERA Data

Cited by

• Investigating saturation effects in ultraperipheral collisions at the LHC with the color dipole model
• Exclusive vector meson production in electron – ion collisions at the EIC, LHeC and FCC–eh