Source Parameters from Identified Hadron Spectra and HBT Radii for Au-Au Collisions at (Square Root)SNN=200 GeV in PHENIX
The characteristics of the particle emitting source are deduced from low p{sub T} identified hadron spectra ((m{sub T}-m0) < 1 GeV) and HBT radii using a hydrodynamic interpretation. From the most peripheral to the most central data, the single particle spectra are fit simultaneously for all {pi}{sup {+-}}, K{sup {+-}}, and {bar p}/p using the parameterization in [1] and assuming a linear transverse flow profile. Within the systematic uncertainties, the expansion parameters T{sub fo} and {beta}{sub T}, respectively decrease and increase with the number of participants, saturating for both at mid-centrality. The expansion using analytic calculations of the k{sub T} dependence of HBT radii in [2] is fit to the data but no {chi}{sup 2} minimum is found.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15002119
- Report Number(s):
- UCRL-JC-150504; TRN: US200408%%99
- Resource Relation:
- Conference: XVI International Conference on Ultra Relativistic Nucleus-Nucleus Collisions, Nantes (FR), 07/18/2002--07/24/2002; Other Information: PBD: 14 Oct 2002
- Country of Publication:
- United States
- Language:
- English
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