Multi-Pion Correlations in Two-Pion Interferometry

ZHANG Wei-Ning; JIANG Yu-Zhen; WANG Shan; LIU Yi-Ming

Chinese Physics C> 1993, Vol. 17> Issue(1) : 49-56

Multi-Pion Correlations in Two-Pion Interferometry

Department of Physics,Harbin Institute of Technology Harbin 1500062 Department of Physics,Kent State University Kent Ohio 442423 Department of Physics,University of California Riverside Ca 92521

Abstract
HTML
Reference
Related

PDF

Abstract：
The influence of multi-pion correlations on two-pion interferometry analysis in multi-pion events can be expressed as the ratio of a multi pion correlation factor for the sample of like-pion pairs to a residual correlation factor for the reference sample.Although these two correlation factors can be partially cancelled our in data analyses,the difference between these two factors in the low relative momentum region is so large that the distortion on the analysed results of two-pion interferometry from multi-pion interference becomes a serious problem when the pion source has a small radius and the pion multiplicity of event is high.The distributions of multi-pion correlation factor C_n－2(q) can sensitively reflect the multi-pion correlation effects in the events The analyses of multi-pion correlation factor for two Bevalac streamer chamber data samples of 2.1AGeV Ne+Pb and 1.8AGeV Ar+Pb collisions show that the multi-pion correlation effect in the former data sample is greater that in the latter.

References

[1]

M. Gyulassy,S.K Kauffmann, an9 L. W. Wilson, Phys. Rev., C20(1979), 2267.[2]W. A. Zajc et al., Phys. Rev., C29(1984), 2173.[3]D.Beaviset al., Phys. Rev., C34(1986),757[4]W.Willie and C. Chasman, Nucl. Phys.A419(1984), 425c.[5]Y. M. Liu et al., Phys. Rev., (,'34(1986), 1667.[6]Y. M. Liu et al，Proc, of International Symposium on Medium Energy Physics, Beijing, P. 557, 1987 edited by H. C. Chang and L. S. Zhen (World Scientific, 1987)[7]W. A. Zajc, Phys. Rev., D35(19d7), 3396.[8]刘亦铭等，高能物理与核物理，14(1990).724[9]A. D. Chacon et al., Phys. Rev. C43(1991). 2670.[10]W. N. Zhang,Y. Z. Jiang, S. Wang, Y. M. Liu, Proc.of the International Workshop cn Quark-Gluon Structure of Hadrons and Nuclei, ;ihanghai, Chinz, p 306, Edited by Kiaslinger, L.S ,Qiu Xiiun,May 28-Junel, 1990.[11]F. B. Yano and S. E. Koonin, Phys. Lett., 78B(1978),556.[12]S. Y. Fung et al., Phys. Rev. Lett., 41(1978), 1592.[13]D. Beavis et al., Phys. Rev., C27(1983), 910. D. Beavis et al., Phys. Rev., C28(1983), 2562.[14]N. Metropolis et al., J. Chem. Phys., 21(1953), 1087.[15]A. Nijenhuis and H. S. Wilf, Combinatorial Algorithms, 2nd ed. (Academic, New York, 1978)

[1]	MO Xiao-Hu . Unbiased χ² Estimator for Linear Function Fit Involving Correlated Data. Chinese Physics C, 2007, 31(8): 745-749.
[2]	CHEN Xiao-Fan . Test of Nonstatic Spherical Quark-Gluon Plasma by Two-Pion Interferometry. Chinese Physics C, 2007, 31(2): 173-176.
[3]	JIANG Xing-Yu , FANG Shuang-Shi , ZHU Yu-Can , LU Gong-Ru . Pseudoscalar-Meson Mixing in ψ(2S)→VP Decays. Chinese Physics C, 2006, 30(8): 724-730.
[4]	LIU Fang , LI Jin , HUANG Yi-Bin , YAN Mu-Lin . ρ-ω Interference in J/ψ-Decays and ρ→ππ^-π⁰ Decay. Chinese Physics C, 2004, 28(3): 239-244.
[5]	HUANG Yi-Bin , YAN Mu-Lin , WANG Xiao-Jun . Resummation Study on Decay ρ→ππ in U(2)_L×U(2)_R Chiral Theory of Mesons. Chinese Physics C, 2004, 28(4): 340-344.
[6]	WANG Shun-Jin , GUO Yuan-Jun . Complementary Chaos and Spin Polarization Stability in Cyclotrons Studied from the Nonautonomous SU(2)Dynamical System. Chinese Physics C, 2003, 27(12): 1123-1127.
[7]	MO Xiao-Hu , ZHU Yong-Sheng . Different χ² Forms for Correlated Data and Their Properties. Chinese Physics C, 2003, 27(9): 747-753.
[8]	CHEN Xiao-Fan , CHEN Zhi-Lai , YANG Xue-Dong , LI Zhu-Peng . Two-Pion Interferometry at Small Relative Momentum Taking Account for Multi-Pion Correlations. Chinese Physics C, 2001, 25(2): 149-153.
[9]	ZHAO Guang-Yi , LU Jing-Bin , MA Ying-Jun , YIN Li-Chang , LI Xian-Feng , LI Zhi-Huan , WANG Zhi-Kui , WU Xiao-Guang , LI Guang-Sheng , WEN Shu-Xian , YANG Chun-Xiang , LIU Yun-Zuo . Systematic Features of π1/2^－[541]⊙νi_13/2 Bands in Doubly-Odd Nuclei. Chinese Physics C, 2000, 24(S1): 33-37.
[10]	Chen Xiaofan . Pion Source Density Distribution and Tow-Pion Interferometry atSmall Relative Momentum in Relativistic Heavy-Ion Collisions. Chinese Physics C, 1998, 22(5): 424-428.
[11]	BES Collaboration . New Suppression Mode of the ψ(2S) Hadronic Decay. Chinese Physics C, 1995, 19(1): 93-96.
[12]	HUO Lei , JIANG Yu-Zhen , WANG Shan , ZHANG Wei-Ning , LIU Yi-Ming . Spatial Parameter from Two-pion Interferometry. Chinese Physics C, 1992, 16(9): 816-820.
[13]	LIU Guan-Hua , GUO Zhong-Yan , ZHAN Wen-Long , ZHU Yong-Tai , HU Xiao-Qing , XI Hong-Fei , ZHOU Jian-Qun , FENG En-Pu . BaF₂ Used for Particle Identification in Intermediate Energy Heavy Ion Raactions. Chinese Physics C, 1992, 16(11): 1030-1034.
[14]	HOU Bo-Yu , SHI Kang-Jie , YUE Rui-Hong . The Crossing Matrices and Correlation Function in Nonunitary SU_K(2) Wess-Zumino-Witten Model. Chinese Physics C, 1992, 16(5): 414-422.
[15]	LIU Yi-Ming , HUO Lei , JIANG Yu-Zhen , WANG Shan . Source Density Distribution and Intensity Interferometry in High-Energy Heavy-Ion Collisions. Chinese Physics C, 1991, 15(2): 123-130.
[16]	LI Yun-Cai , YANG Shan-De , WU Shi-Shu . CONTRIBUTION OF THE 2H-1P MULTIPLE SCATTERING CORRELATION AND SELF SCREENING EFFECT TO THE SPECTRA OF ¹⁷O AND ¹⁵O. Chinese Physics C, 1990, 14(7): 646-653.
[17]	CHEN Qi-Zhou , LI Zhi-Bing , HE Bao-Peng , LUO Xiang-Qian , GUO Shuo-Hong . THE WEAK INTERACTION MATRIX ELEMENTS OF │ΔS│=2 ON LATTICE. Chinese Physics C, 1988, 12(4): 459-464.
[18]	BAO Cheng-Guang , LI Xian-Hui . INFLUENCE OF THE INTERFERENCE OF ODD AND EVEN WAVES ON SPATIAL CORRELATION OF NUCLEON PAIR. Chinese Physics C, 1988, 12(3): 425-428.
[19]	YAO Li-Shan , ZHOU En-Chen , CAI Dun-Jiu , JI Shi-Yin . THE SYSTEMATIC CALCULATIONS OF (n,2n) AND (n,3n) REACTION CROSS SECTIONS FOR MEDIUM-HEAVY NUCLEI AT 14.5MeV. Chinese Physics C, 1988, 12(5): 683-688.
[20]	YAO Li-Shan , ZHOU En-Chen , CAI Dun-Jiu . A SYSTEMATIC STUDY OF (n, 2n) CROSS SECTION AT 14MeV. Chinese Physics C, 1987, 11(4): 533-542.

Access

Get Citation

ZHANG Wei-Ning, JIANG Yu-Zhen, WANG Shan and LIU Yi-Ming. Multi-Pion Correlations in Two-Pion Interferometry[J]. Chinese Physics C, 1993, 17(1): 49-56.

ZHANG Wei-Ning, JIANG Yu-Zhen, WANG Shan and LIU Yi-Ming. Multi-Pion Correlations in Two-Pion Interferometry[J]. Chinese Physics C, 1993, 17(1): 49-56. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(2741)
PDF Downloads(557)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

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

Multi-Pion Correlations in Two-Pion Interferometry

Corresponding author: ZHANG Wei-Ning,

Department of Physics,Harbin Institute of Technology Harbin 1500062 Department of Physics,Kent State University Kent Ohio 442423 Department of Physics,University of California Riverside Ca 92521

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1993-01-05

Abstract: The influence of multi-pion correlations on two-pion interferometry analysis in multi-pion events can be expressed as the ratio of a multi pion correlation factor for the sample of like-pion pairs to a residual correlation factor for the reference sample.Although these two correlation factors can be partially cancelled our in data analyses,the difference between these two factors in the low relative momentum region is so large that the distortion on the analysed results of two-pion interferometry from multi-pion interference becomes a serious problem when the pion source has a small radius and the pion multiplicity of event is high.The distributions of multi-pion correlation factor C_n－2(q) can sensitively reflect the multi-pion correlation effects in the events The analyses of multi-pion correlation factor for two Bevalac streamer chamber data samples of 2.1AGeV Ne+Pb and 1.8AGeV Ar+Pb collisions show that the multi-pion correlation effect in the former data sample is greater that in the latter.

HTML

Reference (1)

Multi-Pion Correlations in Two-Pion Interferometry

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article