J/psi production at high transverse momentum in p+p and Cu+Cu collisions at s(NN)**1/2 = 200GeV

Collaboration
Apr, 2009
6 pages
Published in:
  • Phys.Rev.C 80 (2009) 041902
e-Print:
Experiments:

Citations per year

200920132017202120240510152025
Abstract: (arXiv)
The STAR collaboration at RHIC presents measurements of \Jpsie+e\to{e^+e^-} at mid-rapidity and high transverse momentum (pT>5p_T>5 GeV/cc) in \pp and central \cucu collisions at \sNN = 200 GeV. The inclusive \Jpsi production cross section for \cucu collisions is found to be consistent at high pTp_T with the binary collision-scaled cross section for \pp collisions, in contrast to previous measurements at lower pTp_T, where a suppression of \Jpsi production is observed relative to the expectation from binary scaling. Azimuthal correlations of J/ψJ/\psi with charged hadrons in \pp collisions provide an estimate of the contribution of BB-meson decays to \Jpsi production of 1313% \pm 5%.
  • 25.75.Nq
  • 14.40.Gx
  • 25.75.Dw
  • 12.38.Mh
  • OSG : STAR
  • heavy ion: scattering
  • J/psi(3100): inclusive production
  • transverse momentum: high
  • angular correlation: (J/psi(3100) hadron)
  • Brookhaven RHIC Coll