Large t diffractive J / ψ photoproduction with proton dissociation in ultraperipheral pA collisions at LHC

L. Frankfurt, Mark Strikman, M. Zhalov

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

We evaluate the large momentum transfer J / ψ photoproduction with rapidity gaps in ultraperipheral proton-ion collisions at the LHC which provides an effective method of probing dynamics of large t elastic hard QCD Pomeron interactions. It is shown that the experimental studies of this process would allow to investigate the energy dependence of cross section of elastic scattering of a small c over(c, ̄) dipole off the gluon over a wide range of invariant energies 103 < sc over(c, ̄) - gluon < 106 GeV2. The accessible energy range exceeds the one reached in γp at HERA by a factor of 10 and allows the kinematic cuts which improve greatly sensitivity to the Pomeron dynamics as compared to the HERA measurements. The cross section is expected to change by a factor ≥20 throughout this interval and our estimates predict quite reasonable counting rates for this process with the several of the LHC detectors.

Original languageEnglish (US)
Pages (from-to)32-36
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume670
Issue number1
DOIs
StatePublished - Dec 4 2008

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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