Analysis of the Coherence of Pion-Emitting Source Through Multipion Correlations

Zhang Weining; Liu Yiming; Huo Lei; D. Keane; S. Y. Fung

Chinese Physics C> 1996, Vol. 20> Issue(S3) : 269-276

Analysis of the Coherence of Pion-Emitting Source Through Multipion Correlations

1. Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China;
2 Department of Physics, Kent State University, Kent, Ohio, U. S. A.;
3 Department of Physics, University of California, Riverside, California, U. S. A.

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Abstract：
The multiparticle correlations of pions emitted from sources with different degrees of coherence are simulated by the Monte Carlo method. The sensitivity of the dependence of the multipion correlations in subevents with different multiplicities on the degree of coherence of the pion-emitting source is investigated. The degrees of coherence of the sources for central collisions of 2.1AGeV Ne+Pb and 1.2AGeV Ar+KCl at the Bevalac streamer chamber are analyzed. The results are compared with previous two-pion interferometry results.
- multipion correlations ,
- pion-emitting source ,
- degree of coherence

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Zhang Weining, Liu Yiming, Huo Lei, D. Keane and S. Y. Fung. Analysis of the Coherence of Pion-Emitting Source Through Multipion Correlations[J]. Chinese Physics C, 1996, 20(S3): 269-276.

Zhang Weining, Liu Yiming, Huo Lei, D. Keane and S. Y. Fung. Analysis of the Coherence of Pion-Emitting Source Through Multipion Correlations[J]. Chinese Physics C, 1996, 20(S3): 269-276. shu

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Received: 1995-09-04

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Supported by the National Natural Science Foundation of China, the Doctorate Program of High Education of China, and Natural Science Foundation of Heilongjiang Province.

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Analysis of the Coherence of Pion-Emitting Source Through Multipion Correlations

1. Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China;
2 Department of Physics, Kent State University, Kent, Ohio, U. S. A.;
3 Department of Physics, University of California, Riverside, California, U. S. A.

Received Date: 1995-09-04

Fund Project: Supported by the National Natural Science Foundation of China, the Doctorate Program of High Education of China, and Natural Science Foundation of Heilongjiang Province.

Abstract: The multiparticle correlations of pions emitted from sources with different degrees of coherence are simulated by the Monte Carlo method. The sensitivity of the dependence of the multipion correlations in subevents with different multiplicities on the degree of coherence of the pion-emitting source is investigated. The degrees of coherence of the sources for central collisions of 2.1AGeV Ne+Pb and 1.2AGeV Ar+KCl at the Bevalac streamer chamber are analyzed. The results are compared with previous two-pion interferometry results.