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Transverse momentum distributions of neutral pions from central and peripheral16O+Au collisions at 200A·GeV |
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| Authors: | R. Albrecht T. C. Awes C. Baktash P. Beckmann F. Berger R. Bock G. Claesson G. Clewing L. Dragon R. L. Ferguson A. Franz S. Garpman R. Glasow H. ?. Gustafsson H. H. Gutbrod K. H. Kampert B. W. Kolb P. Kristiansson I. Y. Lee H. L?hner I. Lund F. E. Obershain A. Oskarsson I. Otterlund T. Peitzmann S. Persson F. Plasil A. M. Poskanzer M. Purschke H. G. Ritter R. Santo H. R. Schmidt T. Siemiarczuk S. P. S?rensen E. Stenlund G. R. Young WA Collaboration |
| Affiliation: | 1. Gesellschaft für Schwerionenforschung (GSI), D-6100, Darmstadt, Federal Republic of Germany 2. Oak Ridge National Laboratory, 37831, Oak Ridge, TN, USA 3. University of Münster, D-4400, Münster, Federal Republic of Germany 4. University of Lund, S-22362, Lund, Sweden 7. Lawrence Berkely Laboratory, 94720, Berkeley, CA, USA |
| Abstract: | The production of neutral pions by the interaction of 200A·GeV p and16O projectiles with a Au target has been studied in the pseudorapidity range 1.5≦η≦2.1. Transverse momentum spectra have been measured between 0.4 GeV/c and 3.6 GeV/c and their dependence on the centrality of the collision has been investigated. The peripheral-collision spectra display a marked change of slope with a hard component starting at about 1.8 GeV/c, in contrast to central-collision data. The data are discussed in comparison to p+p and α+α data from the ISR. |
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