Exclusive J/psi and Upsilon photoproduction and the low x gluon
arXiv:1608.03838 · doi:10.1016/j.physletb.2017.01.004
Abstract
We discuss the potential to constrain the small-$x$ PDFs using the exclusive production of heavy vector mesons. The calculation of $J/Ï$ and $Î¥$ photoproduction at NLO in collinear factorisation is described. The different behaviour of the NLO corrections for $J/Ï$ and $Î¥$ is highlighted and we outline what might be expected from the inclusion of these processes in a PDF fit.
10 pages, 2 figures. To appear in the proceedings of `XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2016)', Hamburg (Germany), April 2016