Analysis of shower particle pseudorapidity spectra in interactions of relativistic Au and Pb ions with emulsion nuclei

Ali Zaman

doi:10.1088/1674-1137/35/12/003

Chinese Physics C> 2011, Vol. 35> Issue(12) : 1095-1099 DOI: 10.1088/1674-1137/35/12/003

Analysis of shower particle pseudorapidity spectra in interactions of relativistic Au and Pb ions with emulsion nuclei

Ali Zaman

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Abstract：
The pseudorapidity spectra of fast particles (with β > 0.7 ) produced in Au (at 11.6 A GeV) and Pb (at 158 A GeV) induced collisions with emulsion (Em) nuclei contain some visual plateaus and shoulders. The plateau is wider for Pb+Em reactions compared with the Au+Em ones. The existence of a plateau is expected for parton models. The Fourier transformation and maximum entropy methods were used to get additional information about the plateaus. The dependence of the plateaus on the centrality of the collisions was also studied using the number of g-particles to fix centrality. It shows that the maximum entropy method could confirm the existence of the plateau and the shoulder on distributions.

References

[1]

Bjorken J D. Phys. Rev. D, 1983, 27(1): 140-1512 LIU F H, Panebratsev Yu A. Nuclear Physics A, 1998, 641: 379; LIU F H, Panebratsev Yu A. Physical Review C, 1999, 59: 1798; LIU Fu-Hu. Physical Review C, 2004, 69: 0679013 Anoshin A I et al. Preprint JINR P1-81-679, Dubna, 19814 Belashev B Z. Int. J Microstructure and Materials Properties, 2009, 4(3): 320-3295 Gaitinov A Sh et al. Proc. of the XVII Meeting of the EMU01 Collaboration, Dubna, Russia, May 18-20, 1999. Dubna, 2000. 1436 Adamovich M I et al. Eur. Phys. J. A., 1999, V.5: 4297 Belashev Z. Journal of Applied Spectroscopy, 2001, 68(5): 838-8468 Dyakonov V P. Wavelet. From theory to practice. -Solon- Moscow, 2002, 217-2189 Belashev B Z. Certi cate of Rospatent N, 2004, 61: 0196

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Ali Zaman. Analysis of shower particle pseudorapidity spectra in interactions of relativistic Au and Pb ions with emulsion nuclei[J]. Chinese Physics C, 2011, 35(12): 1095-1099. doi: 10.1088/1674-1137/35/12/003

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Received: 2011-03-28
Revised: 2011-05-24

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Analysis of shower particle pseudorapidity spectra in interactions of relativistic Au and Pb ions with emulsion nuclei

Received Date: 2011-03-28

Accepted Date: 2011-05-24

Available Online: 2011-12-05

Abstract: The pseudorapidity spectra of fast particles (with β > 0.7 ) produced in Au (at 11.6 A GeV) and Pb (at 158 A GeV) induced collisions with emulsion (Em) nuclei contain some visual plateaus and shoulders. The plateau is wider for Pb+Em reactions compared with the Au+Em ones. The existence of a plateau is expected for parton models. The Fourier transformation and maximum entropy methods were used to get additional information about the plateaus. The dependence of the plateaus on the centrality of the collisions was also studied using the number of g-particles to fix centrality. It shows that the maximum entropy method could confirm the existence of the plateau and the shoulder on distributions.

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Analysis of shower particle pseudorapidity spectra in interactions of relativistic Au and Pb ions with emulsion nuclei

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Analysis of shower particle pseudorapidity spectra in interactions of relativistic Au and Pb ions with emulsion nuclei

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