Speaker
Brennan Schaefer
(Lehigh University)
Description
In this poster, we present measurements of $J/\psi$ meson production in $p$+$p$ collisions at $\sqrt{s}=510$ GeV as a function of event activity. The $J/\psi$ mesons are reconstructed via their dielectron decay channel at mid-rapidity $(|y|<1)$ for the transverse-momentum range $4<p_{T}<12$ GeV/$c$. We observe a faster-than-linear increase in $J/\psi$ production with respect to the mid-rapidity charged-particle multiplicity density, with RHIC data seeming to follow a different trend than LHC measurements. These results will help improve our understanding of quarkonium production in $p$+$p$ collisions and constrain theoretical models that incorporate such effects as multi-parton interactions and color-string percolation.
Author
Brennan Schaefer
(Lehigh University)