Aggarwal, M. M. ; Sinha, B. C. ; et., al (1998) Centrality dependence of neutral pion production in 158AGeV 208P208b+Pb collisions Physical Review Letters, 81 (19). pp. 4087-4091. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v81/i19/p4087_1
Related URL: http://dx.doi.org/10.1103/PhysRevLett.81.4087
Abstract
The production of neutral pions in 158AGeV 208Pb+208Pb collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron (SPS). Transverse momentum spectra are studied for the range 0.3≤mT-m0≤4.0GeV/c. The results for central collisions are compared to various models. The centrality dependence of the neutral pion spectral shape and yield is investigated. An invariance of the spectral shape and a simple scaling of the yield with the number of participating nucleons is observed for centralities with greater than about 30 participating nucleons. This is most naturally explained by assuming an equilibrated system.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 70338 |
| Deposited On: | 21 Nov 2011 08:50 |
| Last Modified: | 21 Nov 2011 08:50 |
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