CERN Accelerating science


Article
Report number arXiv:0707.2690
Title Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPS
Related titleEvidence for non-Gaussian tail in 3D pion emission source at the SPS
Author(s) Chung, P. (SUNY, Stony Brook, Chem. Dept.) ; Danielewicz, P. (Michigan State U., NSCL ; Michigan State U.)
Collaboration NA49 Collaboration
Publication 2007
Imprint 19 Jul 2007
Number of pages 4
Note Proceedings, QM06, Beijing, China
In: J. Phys. G 34, 8 (2007) pp.S1109-S1112
Int. J. Mod. Phys., E 16, 7-8 (2007) pp.2205-2209
In: 19th International Conference on Ultra-relativistic Nucleus-nucleus Collisions, Shanghai, China, 14 - 20 Nov 2006, pp.S1109-1112
In: 19th International Conference on Ultra-relativistic Nucleus-nucleus Collisions : Poster Session, Shanghai, China, 14 - 20 Nov 2006, pp.2205-2209
DOI 10.1088/0954-3899/34/8/S166
10.1142/S0218301307007696
Subject category Particle Physics ; Nuclear Physics
Accelerator/Facility, Experiment CERN SPS ; NA49
Abstract The NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan of 3D emission sources for pion pairs at SPS energies. These 3D pion emission sources provide new insights into the nature of a long-range source previously reported by PHENIX at RHIC. The new results indicate that the pion source displays significant non-Gaussian tails in the longitudinal direction at 40 and 158 AGeV and in the outward direction at 158 AGeV.

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 Element opprettet 2007-07-20, sist endret 2024-05-08


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