J/psi production at high pT in p+p and A+A collisions at STAR
arXiv:0804.4846 · doi:10.1088/0954-3899/35/10/104135
Abstract
The preliminary results of J/psi spectra at high transverse momentum (5<p_T<14 GeV/c) in p+p and Cu+Cu collisions at s_NN = 200 GeV are reported. The nuclear modification factor is measured to be 0.9+/-0.2 at p_T>5 GeV/c. The correlations between J/psi and charged hadrons are also studied in p+p collisions to understand the J/psi production mechanism at high p_T.
4 pages, 3 figures. Proceedings of the Quark Matter 2008 conference, Jaipur, India, February 4-10, 2008. Submitted to J. Phys. G: Nucl. and Part. Phys