0000000000869845
AUTHOR
M. G. Ryskin
Predictions of exclusive $\Upsilon$ photoproduction at the LHC and future colliders
The cross section for exclusive $\Upsilon$ ultraperipheral photoproduction at present and future colliders is determined using the low $x$ gluon PDF extracted from an analysis of exclusive $J/\psi$ measurements performed at HERA and the LHC. Predictions are given at next-to-leading order in collinear factorisation over a wide $\gamma p$ centre-of-mass energy range, calculated assuming the non-relativistic approximation for the $\Upsilon$ wave function, and with skewing corrections incorporated.
Exclusive J/ψ and ϒ production in high-energy pp and p-Pb collisions
We present a formalism for determining the cross section for exclusive heavy vector meson production (J/ψ,ϒ) as a function of rapidity, in both high-energy proton-proton and proton-heavy ion collisions, at next-to-leading order in QCD. We compare and contrast the production in pp and p-Pb collisions and show how data for these processes can give information on the low-x gluon distribution of the proton and heavy ions at a range of different scales.