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Upsilon production in p+p and Au+Au collisions in STAR

Collaboration
•
for the collaboration.
Apr, 2008
4 pages
Published in:
  • J.Phys.G 35 (2008) 104153
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Abstract: (arXiv)
The study of quarkonium production in relativistic heavy ion collisions provides insight into the properties of the produced medium. The lattice studies show a sequential suppression of quarkonia states when compared to normal nuclear matter; which further affirms that a full spectroscopy including bottomonium can provide us a better thermometer for the matter produced under extreme conditions in relativistic heavy ion collisions. With the completion of the STAR Electromagnetic Calorimeter and with the increased luminosity provided by RHIC in Run 6 and 7, the study of Υ\Upsilon production via the di-electron channel becomes possible. We present the results on Υ\Upsilon measurements in p+p collisions (from Run 6) along with the first results from Au+Au collisions (in Run 7) at sNN=200\sqrt{s_{\rm{NN}}} = 200 GeV from the STAR experiment.
Note:
  • 4 pages and 2 figures, Oral Presentation at QM2008 February 4-10, 2008: Jaipur India. submitted to Journal Of Physics-G:Nuclear and Particle Physics