Speaker
Description
Previous ALICE results indicate a stronger than linear increase of the inclusive normalized J/$\psi$ yield with charged-particle multiplicity, both measured at mid-rapidity, in proton-lead collisions at $\sqrt{s_{NN}}=5.02$ TeV. The corresponding ALICE results on proton-proton collisions at$\sqrt{s}=13$ TeV provide a clearer picture of a stronger than linear increase.
In PYTHIA8, this behavior has been associated with auto-correlation effects in proton-proton collisions. This has been achieved by investigating the multiplicity dependence of J/$\psi$ production in different regions of the azimuthal angle, which is the difference between the J/$\psi$ meson and the charged particle emission angle. For proton-lead collisions, no results on these distributions for the J/$\psi$ meson are available yet.
This poster will present first results on the multiplicity dependence of the normalized J/$\psi$ yield for proton-lead collision in regions of the azimuthal angle, using ALICE data at $\sqrt{s_{NN}}=5.02$ TeV recorded during the LHC data taking Run 2 in 2016.
