Absorption Correlation in Pion Interferometry Analyses

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

Chinese Physics C> 1994, Vol. 18> Issue(S2) : 185-192

Absorption Correlation in Pion Interferometry Analyses

Huo Lei ¹ ,
Zhang Weining ¹ ,
Wang Shan ¹ ,
Liu Yiming ¹ ,
D. Keane ² ,
S. Y. Chu ³ ,
S. Y. Fung ³

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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The effect of absorption on the analyzed results of pion interferometry is studied. The removal of this effect is investigated using a VUU simulation. Data for collisions of 1.8 A GeV Ar+Pb at the Bevalac streamer chamber are analyzed. The spatial parameter of the source extracted from pion interferometry is less than the true value due to the absorption correlation. The effect of the absorption correlation can be eliminated by properly constructing the background.
- pion interferometry ,
- azimuthal distribution ,
- absorption collection ,
- correlation function

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Huo Lei, Zhang Weining, Wang Shan, Liu Yiming, D. Keane, S. Y. Chu and S. Y. Fung. Absorption Correlation in Pion Interferometry Analyses[J]. Chinese Physics C, 1994, 18(S2): 185-192.

Huo Lei, Zhang Weining, Wang Shan, Liu Yiming, D. Keane, S. Y. Chu and S. Y. Fung. Absorption Correlation in Pion Interferometry Analyses[J]. Chinese Physics C, 1994, 18(S2): 185-192. shu

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Received: 1993-05-31

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Supported by the National Natural Science Foundation of China, the US Department of Energy, and the US National Science Foundation.

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Absorption Correlation in Pion Interferometry Analyses

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: 1993-05-31

Fund Project: Supported by the National Natural Science Foundation of China, the US Department of Energy, and the US National Science Foundation.

Abstract: The effect of absorption on the analyzed results of pion interferometry is studied. The removal of this effect is investigated using a VUU simulation. Data for collisions of 1.8 A GeV Ar+Pb at the Bevalac streamer chamber are analyzed. The spatial parameter of the source extracted from pion interferometry is less than the true value due to the absorption correlation. The effect of the absorption correlation can be eliminated by properly constructing the background.

Absorption Correlation in Pion Interferometry Analyses

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