Study of the Nuclear Matter Symmetry Energy in the Simulated 140 AMeV 58,64Ni+9Be Reactions by Isoscaling Method

QIAO Chunyuan; MA Chunwang; NIU Fei; XU Jingli; DING Tiantian; SONG Yidan

doi:10.11804/NuclPhysRev.34.03.525

We have simulated the reactions 140 AMeV ^58,64Ni+⁹Be by antisymmetric molecular dynamics model (AMD) and studied the evolution of △μ_n(p)/T with collision time from 20 fm/c to 1 000 fm/c. To study nuclear symmetry energy influencing factors, a comparative analysis has been proceed among theses results with different impact parameters and the difference reactions system. The results show that the impact parameters have a great influence on the symmetry energy of the heavy nucleus, and the greater the asymmerty degree of the system, the greater the influence on the symmetry energy. These results are helpful for the indirect study of the energy dependence of the symmetry energy coefficient of the excited nuclear system.

Study of the Nuclear Matter Symmetry Energy in the Simulated 140 AMeV ^58,64Ni+⁹Be Reactions by Isoscaling Method

1. College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, Henan, China;

2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Funds: Science and Technology Innovation Talents Program in Universities of Henan Province(13HASTIT046)

Corresponding author: 10.11804/NuclPhysRev.34.03.525

Received Date: 2016-12-06

Rev Recd Date: 2017-05-02

Publish Date: 2017-07-18

Key words:

Abstract: We have simulated the reactions 140 AMeV ^58,64Ni+⁹Be by antisymmetric molecular dynamics model (AMD) and studied the evolution of △μ_n(p)/T with collision time from 20 fm/c to 1 000 fm/c. To study nuclear symmetry energy influencing factors, a comparative analysis has been proceed among theses results with different impact parameters and the difference reactions system. The results show that the impact parameters have a great influence on the symmetry energy of the heavy nucleus, and the greater the asymmerty degree of the system, the greater the influence on the symmetry energy. These results are helpful for the indirect study of the energy dependence of the symmetry energy coefficient of the excited nuclear system.

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Reference (25)

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Study of the Nuclear Matter Symmetry Energy in the Simulated 140 AMeV ^58,64Ni+⁹Be Reactions by Isoscaling Method

doi: 10.11804/NuclPhysRev.34.03.525

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

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Study of the Nuclear Matter Symmetry Energy in the Simulated 140 AMeV ^58,64Ni+⁹Be Reactions by Isoscaling Method

doi: 10.11804/NuclPhysRev.34.03.525

1. College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, Henan, China;

2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Corresponding author: 10.11804/NuclPhysRev.34.03.525

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Study of the Nuclear Matter Symmetry Energy in the Simulated 140 AMeV 58,64Ni+9Be Reactions by Isoscaling Method

doi: 10.11804/NuclPhysRev.34.03.525

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Proportional views