J/psi production at high transverse momenta in p plus p and Cu plus Cu collisions at [sqrt] s(NN)=200 GeV
Name
Abelev-2009-Jpsi production at high transverse momenta.pdf
Size
371.05 KB
Format
Adobe PDF
Checksum (MD5)
c248b7e0cfcc2ea85369354ebfb9ccfb
Author(s)
Sakuma, Tai
Leight, William Axel
Kocoloski, Adam Philip
Jones, Christopher LaDon
Corliss, Ross Cameron
Betancourt, Michael Joseph
Surrow, Bernd
Balewski, Jan T.
Walker, Matthew H
Redwine, Robert P
Alternative Title
J/ψ production at high transverse momenta in p + p and Cu + Cu collisions at √sNN=200 GeV
Date Issued
October 2009
Journal
Physical Review C
Publisher
American Physical Society
Citation
STAR Collaboration et al. “J/ psi production at high transverse momenta in p+p and Cu+Cu collisions at [sqrt]sNN=200 GeV.” Physical Review C 80.4 (2009): 041902. © 2009 American Physical Society.
Version
Final published version
Abstract
The STAR Collaboration at the Relativistic Heavy Ion Collider presents measurements of J/psi-->e+e- at midrapidity and high transverse momentum (pT>5 GeV/c) in p+p and central Cu+Cu collisions at [sqrt]sNN=200 GeV. The inclusive J/psi production cross section for Cu+Cu collisions is found to be consistent at high pT with the binary collision-scaled cross section for p+p collisions. At a confidence level of 97%, this is in contrast to a suppression of J/psi production observed at lower pT. Azimuthal correlations of J/psi with charged hadrons in p+p collisions provide an estimate of the contribution of B-hadron decays to J/psi production of 13%±5%.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
http://dx.doi.org/10.1103/PhysRevC.80.041902
