Adeola Adeluyi

Constraining gluon shadowing using photoproduction in ultraperipheral p A and A A collisions

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.

Coherent photoproduction of

Exclusive photoproduction of vector mesons in the perturbative two-gluon exchange formalism depends significantly on nucleon and nuclear gluon distributions. In the present study we calculate total cross sections and rapidity distributions of

\psi

J/\psi(1s)

and

,

\Upsilon

\psi(2s)

mesons in ultraperipheral pPb and PbPb collisions at the CERN LHC

,

Gluon distributions in nuclei probed at energies available at the CERN Large Hadron Collider

\Upsilon(1s)

Nuclear effects in photoproduction of heavy quarks and vector mesons in ultraperipheral PbPb and p Pb collisions at energies available at the CERN Large Hadron Collider

,

Hadron production in deuteron-gold collisions and nuclear parton distributions

\Upsilon(2s)

Relativistic light-on-heavy nuclear collisions and the implied rapidity asymmetry

, and