Study of Isoscaling in Projectile Fragmentation and the Nuclear Symmetry Energy Coefficient

FANG De-Qing; MA Yu-Gang; MA Chun-Wang; ZHONG Chen; CAI Xiang-Zhou; CHEN Jin-Gen; GUO Wei; SU Qian-Min; TIAN Wen-Dong; WANG Kun; YAN Ting-Zhi; SHEN Wen-Qing

Chinese Physics C> 2006, Vol. 30> Issue(S2) : 274-276

Study of Isoscaling in Projectile Fragmentation and the Nuclear Symmetry Energy Coefficient

Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

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Abstract：
The isoscaling behavior in projectile fragmentation has been systematically investigated by a modified statistical abrasion-ablation (SAA) model. The reduced isoscaling parameters are found to decrease with the excitation energy per nucleon and have no significant dependence on the size of reaction systems. Assuming a Fermi-gas behavior, the excitation energy dependence of the symmetry energy coefficients are tentatively extracted from α and β which looks consistent with the experimental data.

References

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[18]	Zhang Fengshou , Chen Liewen . An Isospin-Dependent Nuclear Equation of State. Chinese Physics C, 1999, 23(12): 1190-1196.
[19]	Wu Zhongli . Systematic Evolution of Projectile Fragmentation Process with Incident Energies. Chinese Physics C, 1998, 22(10): 928-931.
[20]	LIU Guan-Hua , ZHAN Wen-Long , ZHU Yong-Tai , GUO Zhong-Yan , HU Xiao-Qing , XI Hong-Fei , ZHOU Jian-Qun , YIN Shu-Zhi , FENG En-Pu , ZHAO You-Xiong , WEI Zhi-Yong , FAN En-Jie . Projectile Fragmentation in 46.7MeV/u ¹²C Induced Reactions. Chinese Physics C, 1993, 17(2): 166-172.

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FANG De-Qing, MA Yu-Gang, MA Chun-Wang, ZHONG Chen, CAI Xiang-Zhou, CHEN Jin-Gen, GUO Wei, SU Qian-Min, TIAN Wen-Dong, WANG Kun, YAN Ting-Zhi and SHEN Wen-Qing. Study of Isoscaling in Projectile Fragmentation and the Nuclear Symmetry Energy Coefficient[J]. Chinese Physics C, 2006, 30(S2): 274-276.

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Received: 2006-10-18
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

Study of Isoscaling in Projectile Fragmentation and the Nuclear Symmetry Energy Coefficient

Corresponding author: FANG De-Qing,

Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

Received Date: 2006-10-18

Accepted Date: 1900-01-01

Available Online: 2006-01-03

Abstract: The isoscaling behavior in projectile fragmentation has been systematically investigated by a modified statistical abrasion-ablation (SAA) model. The reduced isoscaling parameters are found to decrease with the excitation energy per nucleon and have no significant dependence on the size of reaction systems. Assuming a Fermi-gas behavior, the excitation energy dependence of the symmetry energy coefficients are tentatively extracted from α and β which looks consistent with the experimental data.

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Study of Isoscaling in Projectile Fragmentation and the Nuclear Symmetry Energy Coefficient

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通讯作者: 陈斌, bchen63@163.com

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