J/ΨJ/Ψ yield vs. multiplicity in proton-proton collisions at the LHC

preprint2010arXivOpen access

Abstract

We address the question of understanding the production of J/ψJ/ψ particles regarding the global underlying event in proton-proton collisions. To do so, we propose to look at a new observable: the J/ψJ/ψ 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.

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