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Source parameters deduced from Bose-Einstein correlations of two and three soft pions in symmetric heavy-ion interactions at 650 A MeV |
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| Authors: | R. Bock K. G. R. Doss H. H. Gutbrod K. H. Kampert B. Kolb I. Lund H. G. Ritter H. R. Schmidt T. Siemiarczuk W. Wislicki |
| Affiliation: | 1. Gesellschaft für Schwerionenforschung, Darmstadt, Federal Republic of Germany 2. Lawrence Berkeley Laboratory, Berkeley, California, USA 3. Institute for Nuclear Studies, Warsaw, Poland |
| Abstract: | The analysis of Bose-Einstein correlations for systems of two and three low-momentum pions in interactions of Au+Au and Nb+Nb at 650 A MeV kinetic energy are presented. The data were taken with the Plastic Ball spectrometer. The pion-emitting source sizes obtained from specific three-pion correlations are significantly smaller than those extracted from two-pion correlations. The dependence of the source parameters on the multiplicity of produced pions was examined. The low-p t pions are emitted from a larger region than the high-p t ones. |
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