J/ψ production at high at STAR

✍ Scribed by Zebo Tang

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 177 KB
• Volume: 855
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2011.02.089

✦ Synopsis

We report results on J/ψ-hadron azimuthal angular correlations in 200 GeV p+p collision in the STAR experiment at RHIC. The extracted B-hadron feed-down contribution to inclusive J/ψ yield is found to be 10-25% in 4 < p T < 12 GeV/c and has no significant center-of-mass energy dependence from RHIC to LHC. The p T spectrum of charged hadrons associated with high-p T J/ψ triggers on the away side is found to be consistent with that from di-hadron correlations. J/ψ signal from Au+Au 39 GeV data will also be presented to demonstrate STAR's J/ψ capability at RHIC low energy run.