Chinese Physics C > 2001, Vol. 25 > Issue(6): 500-505

Analysis of the Energy Autocorrelation Functions in Dissipative Heavy Ion Collision of²⁷Al+²⁷Al

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China

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Abstract：
The excitation functions of the dissipative fragments emitted from the reaction of ²⁷Al+ ²⁷Al have been measured in the energy region from 114MeV to 127MeV in steps of 200keV. The detection system covered continuous angles from 10° to 57° in laboratory system. The energy autocorrelation functions of the dissipative fragments have been analyzed by using different approaches,especially using the statistical nuclear reaction model with memory. The results indicate that the intermediate dinuclear system formed in the dissipative process is set in a damped coherent nuclear rotation which causes the nonself averaging oscillation structure in the excitation functions and originates from a typical quantum chaotic motion.

References

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WANG Qi, LI Song-Lin, TIAN Wen-Dong, LU Jun, HU Peng-Yun and LUO Yi-Xiao. Analysis of the Energy Autocorrelation Functions in Dissipative Heavy Ion Collision of ²⁷Al+ ²⁷Al[J]. Chinese Physics C, 2001, 25(6): 500-505.

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Received: 2000-06-13
Revised: 1900-01-01

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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 the Energy Autocorrelation Functions in Dissipative Heavy Ion Collision of²⁷Al+²⁷Al

Corresponding author:WANG Qi,

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China

Received Date:2000-06-13

Accepted Date:1900-01-01

Available Online:2001-06-05

Abstract:The excitation functions of the dissipative fragments emitted from the reaction of²⁷Al+²⁷Al have been measured in the energy region from 114MeV to 127MeV in steps of 200keV. The detection system covered continuous angles from 10° to 57° in laboratory system. The energy autocorrelation functions of the dissipative fragments have been analyzed by using different approaches,especially using the statistical nuclear reaction model with memory. The results indicate that the intermediate dinuclear system formed in the dissipative process is set in a damped coherent nuclear rotation which causes the nonself averaging oscillation structure in the excitation functions and originates from a typical quantum chaotic motion.

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Analysis of the Energy Autocorrelation Functions in Dissipative Heavy Ion Collision of²⁷Al+²⁷Al

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