Chinese Physics C > 2001, Vol. 25 > Issue(2): 149-153

Two-Pion Interferometry at Small Relative Momentum Taking Account for Multi-Pion Correlations

Department of Physics, Harbin Institute of Technology, Harbin 150001, China

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Abstract：
A general expression for nπ correlation function is given when there are multi-pion correlations in the choices of correlated nπ and uncorrelated nπ. Using this expression, the two-pion interferometry at small relative momentum which takes account for multi-pion correlations is studied, the relations between the pion source parameters from the two-pion interferometry and the three- pion interferometry are obtained analytically, and comparison is made with the experimental results of central relativistic heavy ion collisions 1.8 A GeV Ar+Pb.

References

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CHEN Xiao-Fan, CHEN Zhi-Lai, YANG Xue-Dong and LI Zhu-Peng. Two-Pion Interferometry at Small Relative Momentum Taking Account for Multi-Pion Correlations[J]. Chinese Physics C, 2001, 25(2): 149-153.

CHEN Xiao-Fan, CHEN Zhi-Lai, YANG Xue-Dong and LI Zhu-Peng. Two-Pion Interferometry at Small Relative Momentum Taking Account for Multi-Pion Correlations[J]. Chinese Physics C, 2001, 25(2): 149-153. shu

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Received: 1999-11-22
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Two-Pion Interferometry at Small Relative Momentum Taking Account for Multi-Pion Correlations

Corresponding author:CHEN Xiao-Fan,

Department of Physics, Harbin Institute of Technology, Harbin 150001, China

Received Date:1999-11-22
Accepted Date:1900-01-01
Available Online:2001-02-05

Abstract:A general expression for nπ correlation function is given when there are multi-pion correlations in the choices of correlated nπ and uncorrelated nπ. Using this expression, the two-pion interferometry at small relative momentum which takes account for multi-pion correlations is studied, the relations between the pion source parameters from the two-pion interferometry and the three- pion interferometry are obtained analytically, and comparison is made with the experimental results of central relativistic heavy ion collisions 1.8 A GeV Ar+Pb.