High pT inclusive charged hadron spectra from Au+Au collisions at {radical}(s{sub NN}) = 200 Gev
The STAR Collaboration presents new measurements of inclusive charged hadron distributions for p{sub T} < 12 GeV/c from Au+Au collisions at {radical}(s{sub NN}) = 200GeV. Charged hadron suppression at high p{sub T} is similar in shape and magnitude at all centralities to that observed previously at {radical}(s{sub NN}) = 130 GeV for p{sub T} < 6 GeV/c. The ratio of spectra from central and peripheral Au+Au collisions shows that hadron suppression is approximately constant within 6 < p{sub T} < 12 GeV/c. The ratios of charged hadron spectra at the two beam energies show a 15-20 percent increase in yield at low p{sub T}. At high p{sub T}, the ratios show a larger increase that agrees well with pQCD calculations of the {radical}(s{sub NN}) dependence of particle production in Au+Au collisions.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director, Office of Science (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 805164
- Report Number(s):
- LBNL-51668; R&D Project: NRNC; B& R KB0201022; TRN: US0301675
- Resource Relation:
- Conference: The XVI International Conference on Ultrarelativistic Nucleus-Nucleus Collisions, Quark Matter 2002, Nantes (FR), 07/18/2002--07/24/2002; Other Information: PBD: 17 Oct 2002
- Country of Publication:
- United States
- Language:
- English
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