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Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCD by Guzey, V.; Klasen, M. is a scholarly article available to read on EtoBox.

What is Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCD about?

We make predictions for the cross sections of diffractive dijet photoproduction in $pp$, $pA$ and $AA$ ultraperipheral collisions (UPCs) at the LHC during Runs 1 and 2 using next-to-leading perturbative QCD. We find that the resulting cross sections are sufficiently large and, compared to lepton-proton scattering at HERA, have an enhanced sensitivity to small observed momentum fractions in the diffractive exchange, commonly denoted $z_{P}^{\rm jets}$, and an unprecedented reach in the invariant mass of the photon-nucleon system $W$. We examine two competing schemes of diffractive QCD factorization breaking, which assume either a global suppression factor or a suppression for resolved photons only and demonstrate that the two scenarios can be distinguished by the nuclear dependence of the distributions in the observed parton momentum fraction in the photon $x_{\gamma}^{\rm jets}$.

Author

Guzey, V.; Klasen, M.

Published

2016

Language

EN