Elastic and large t rapidity gap vector meson production in ultraperipheral proton-ion collisions

Abstract

We evaluate the cross sections for the production of vector mesons in exclusive ultraperipheral proton-ion collisions at LHC. We find that the rates are high enough to study the energy and momentum transfer dependence of vector mesons - rho,phi, J/psi, Upsilon photoproduction in gamma p scattering in a wide energy range extending the measurements which were performed at HERA, providing new information about interplay of soft and hard physics in diffraction. Also, we calculate the contributions to the vector meson yield due to production of vector mesons off nuclear target by photons emitted by proton. We find, that least in the case of Upsilon production it is feasible to observe simultaneously both these processes. Such measurements would increase the precision with which the A-dependence of exclusive onium production can be determined. This would also enable one to estimate the amount of nuclear gluon shadowing of generalized gluon distributions at much smaller x than that is possible in AA collisions and to measure the cross sections for photoproduction processes in a significantly wider energy range than that achieved in experiments with fixed nuclear targets. We also present the cross section for vector meson production in pA collisions at RHIC. In addition, we consider production of vector mesons off protons with large rapidity gaps and large t. These processes probe small x dynamics of the elastic interaction of small dipoles at high energies and large but finite t, that is in the kinematics where DGLAP evolution is strongly suppressed. We estimate that this process could be studied at LHC up to W ~1 TeV with detectors which will be available at LHC.

21 pages, 9 figures, a reference to experimental data is added

References in corpus (27)

• Factorization for hard exclusive electroproduction of mesons in QCD
• Physics of Ultra-Peripheral Nuclear Collisions
• Diffractive Leptoproduction of Vector Mesons in QCD
• Coherent gamma-gamma and gamma-A interactions in very peripheral collisions at relativistic ion colliders
• Inclusive Measurement of Diffractive Deep-inelastic ep Scattering
• Hard diffractive electroproduction of vector mesons in QCD
• Coherent Nuclear Diffractive Production of Minijets - Illuminating Color Transparency
• Interference in Exclusive Vector Meson Production in Heavy Ion Collisions
• Diffractive Heavy Quarkonium Photo- and Electroproduction in QCD
• Dijet production as a centrality trigger for p-p collisions at CERN LHC
• Measurement of proton-dissociative diffractive photoproduction of vector mesons at large momentum transfer at HERA
• Leading twist nuclear shadowing: uncertainties, comparison to experiments and higher twist effects
• Diffractive Vector Meson Production at Large Momentum Transfer
• Measurement of Elastic ${\rho }^0$ Photoproduction at HERA
• Fading out of J/psi color transparency in high energy heavy ion peripheral collisions
• Exclusive Vector Photoproduction: Confirmation of Regge Theory
• Diffractive Jet Production in Deep-Inelastic e^+p Collisions at HERA
• Diffractive Photoproduction of ${\rm Y}$ at HERA
• Total Cross Section Measurements with pi-, Sigma- and Protons on Nuclei and Nucleons around 600 GeV/c
• Upsilon photoproduction at HERA compared to estimates of perturbative QCD
• Neutron tagging of quasielastic J/psi photoproduction off nucleus in ultraperipheral heavy ion collisions at RHIC energies
• Onset of Perturbative Color Opacity at Small x and Upsilon Coherent Photoproduction off heavy nuclei at LHC
• Diffractive Photoproduction of Rho Mesons with Large Momentum Transfer at HERA
• Determining the Proximity of Γ^{\ast} N Scattering to the Black Body Limit Using DIS and J/ ψProduction
• Coherent Photoproduction from Nuclei
• Coherent Electromagnetic Processes in Ultra-Peripheral Heavy-Ion Collisions
• Rho meson production in ultraperipheral dAu collision

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• The LHC potential for study of the small x gluon physics in ultraperipheral collisions of 3.5 TeV protons
• Probing the BFKL dynamics in the Vector Meson Photoproduction at large -- $t$ in $pPb$ collisions at the CERN LHC
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