$J/Ψ$ yield vs. multiplicity in proton-proton collisions at the LHC
arXiv:1012.0719 · doi:10.1016/j.nuclphysbps.2011.03.082
Abstract
We address the question of understanding the production of $J/Ï$ particles regarding the global underlying event in proton-proton collisions. To do so, we propose to look at a new observable: the $J/Ï$ production as a function of the charged particles multiplicity of the event. We demonstrate the interest for an experimental measurement by varying the model of multiple interactions in the PYTHIA generator.
4 pages, 2 figures, QUARKONIUM 2010: Three Days Of Quarkonium Production in pp and pA Collisions, 29-31 Jul 2010, Palaiseau, France