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 language||English (US)|
|Number of pages||5|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Dec 4 2008|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics