Study of Charmonia Production vs. Charged Track Multiplicity in p + p Collisions at PHENIX

Hot Quarks 2014: Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions

Yu, Haiwang^1,2,3

School of Physics, Peking University, Beijing

100871, China^1

Department of Physics, New Mexico State University, Las Cruces

NM

88003, United States^2

P-25 Group, Los Alamos National Lab., TA53, Los Alamos

NM

87544, United States^3

关键词: Angular correlations;    Competing effects;    Forward rapidity;    Heavy ion collision;    Hot research topics;    Mass resolution;    Nuclear matters;    Particle production;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/612/1/012029/pdf
DOI  :  10.1088/1742-6596/612/1/012029

来源: IOP

【 摘 要 】

Charmonia production is a unique probe to explore the dynamics of particle production in hot and cold nuclear matter. Traditionally, charmonia suppression has been studied in heavy-ion collisions to quantify various nuclear effects. Since the "long-range, nearside angular correlation in p + p collisions" discovered at the LHC, collective QCD phenomena in smaller systems have been a hot research topic. A recent PHENIX d + Au results also show intriguing hints that the comover effect may play an important role along with other competing effects. At PHENIX the newly upgraded silicon detector FVTX provides improved dimuon mass resolution at forward rapidity as well as the capability of measuring charged track multiplicity directly. In these proceedings, we present the latest result on ψ(2S) production in d+Au collisions at midrapidity, the first ψ(2S) measurement at forward rapidity at RHIC and the expected precision for the charmonia production vs. charged track multiplicity in p + p collisions at PHENIX.