J/psi production at high transverse momentum in p+p and Cu+Cu collisions at s(NN)**1/2 = 200GeV
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Abstract: (arXiv)
The STAR collaboration at RHIC presents measurements of \Jpsi at mid-rapidity and high transverse momentum ( GeV/) 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 with the binary collision-scaled cross section for \pp collisions, in contrast to previous measurements at lower , where a suppression of \Jpsi production is observed relative to the expectation from binary scaling. Azimuthal correlations of with charged hadrons in \pp collisions provide an estimate of the contribution of -meson decays to \Jpsi production of .- 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
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