Chinese Physics C > 1994, Vol. 18 > Issue(4): 289-295

Relative Information Entropy of Particle Production in High Energy Induced Nuclear Reactions

Institute of High Energy Physics, Academia Sinica, Benijing 100039

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Abstract：
A new characteristic quantity called relative information entropy R is introduced,which is employed to investigate the multiplicity distribution of produced particles in 14.6. 60, 200 A GeV oxygen ions and 200 A GeV sulphur ions induced nuclear reactions. It is found that R is insensitive to energy. R increases with the size of rapidity window and rapidly reaches saturation, which explores the fact that the entropy is concentrated in the central rapidity region. The experimental results are in good agreement with the prediction of the FRITIOF simulation of the Lund model.

References

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Relative Information Entropy of Particle Production in High Energy Induced Nuclear Reactions[J]. Chinese Physics C, 1994, 18(4): 289-295.

Relative Information Entropy of Particle Production in High Energy Induced Nuclear Reactions[J]. Chinese Physics C, 1994, 18(4): 289-295. shu

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Received: 1900-01-01
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

Relative Information Entropy of Particle Production in High Energy Induced Nuclear Reactions

Institute of High Energy Physics, Academia Sinica, Benijing 100039

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1994-04-05

Abstract:A new characteristic quantity called relative information entropy R is introduced,which is employed to investigate the multiplicity distribution of produced particles in 14.6. 60, 200 A GeV oxygen ions and 200 A GeV sulphur ions induced nuclear reactions. It is found that R is insensitive to energy. R increases with the size of rapidity window and rapidly reaches saturation, which explores the fact that the entropy is concentrated in the central rapidity region. The experimental results are in good agreement with the prediction of the FRITIOF simulation of the Lund model.