TY - JOUR
T1 - Large t diffractive J / ψ photoproduction with proton dissociation in ultraperipheral pA collisions at LHC
AU - Frankfurt, L.
AU - Strikman, M.
AU - Zhalov, M.
N1 - Funding Information:
This work was supported in part by the US Department of Energy, Contract Number DE-FG02-93ER40771 (M. Strikman, M. Zhalov); L. Frankfurt and M.S. thank BSF for support; M. Zhalov would like to express acknowledgment for support by CERN-INTAS grant No. 05-103-7484.
PY - 2008/12/4
Y1 - 2008/12/4
N2 - 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.
AB - 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.
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U2 - 10.1016/j.physletb.2008.10.040
DO - 10.1016/j.physletb.2008.10.040
M3 - Article
AN - SCOPUS:55749096208
SN - 0370-2693
VL - 670
SP - 32
EP - 36
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1
ER -