2019/10/29 by Marat Siddikov, Eugene Levin, Siddikov, Marat +3 · 2 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1910.13579
13 pages, 8 figures
arxiv created 2019/10/29 · arxiv updated 2019/10/31
In this paper we demonstrate that the vigorously growing multiplicity distributions measured by STAR and ALICE present a strong evidence in favor of multigluon fusion mechanisms of the quarkonia production in CGC approach. We analyze the contribution of 3-gluon fusion mechanism and demonstrate that it gives a sizeable contribution to quarkonia yields, as well as predicts correctly the multiplicity distributions for J/ψ at RHIC and LHC. We also make predictions for other quarkonia states, such as ψ(2S) and Υ(1S), and find that the multiplicity dependence of these states should be comparable to similar dependence for J/ψ. Finally, we discuss an experimental setup in which very strong multiplicity dependence could be observed. This observation would be a strong evidence in favor of CGC approach.