Constraining Gluon Shadowing Using Photoproduction in Ultraperipheral pA and AA Collisions

Abstract

Photoproduction of heavy quarks and exclusive production of vector mesons in ultraperipheral proton-nucleus and nucleus-nucleus collisions depend significantly on nuclear gluon distributions. In the present study we investigate quantitatively the extent of the applicability of these processes at the Large Hadron Collider (LHC) in constraining the shadowing component of nuclear gluon modifications.

15 pages, 10 figures. arXiv admin note: substantial text overlap with arXiv:1104.4287

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• Photon-hadron and photon-photon collisions in ALICE