Hard physics at STAR
Preliminary results for the production of high transverse momentum hadrons are reported from the STAR detector at the Relativistic Heavy Ion Collider. Negative hadron spectra for 2 < pT < 6 (GeV/c) indicate a suppressed yield compared to expectations from \(p\bar p\) collisions at similar energy. The elliptical flow deviates from agreement with predictions based on purely hydrodynamical considerations at pT > 1.5 GeV/c. An initial measurement of the flavor dependence of baryon production at pT ≤ 2.25 GeV/c is also presented and discussed.
Keywordsrelativistic heavy ion collisions particle and resonance production
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- 4.X.N. Wang, Phys. Rev. C58 (1998), 2231.Google Scholar
- 5.T. Cormier, “High PT Physics with the STAR Detector”, Talk presented at the 17th Winter Workshop on Nuclear Dynamics, Park City, Utah, USA, March 10–17, 2001.Google Scholar
- 6.M.M. Aggarwal et al., Phys. Rev. Lett. 85 (2000), 284.Google Scholar
- 9.STAR-RICH Collaboration, Proposal for a Ring Imaging Cherenkov Detector in STAR, YRHI 98-022.Google Scholar
- 11.M. Gyulassy, I. Vitev and X.N. Wang, nucl-th/0012092.Google Scholar
- 15.J. Cramer for the STAR Collaboration, Quark Matter 2001 Proceedings.Google Scholar
- 17.P. Lévai et al., nucl-th/0104035, 2001.Google Scholar