Collective flow and nuclear stopping in heavy ion collisions in Fermi energy domain

Peng-Cheng Li; Yong-Jia Wang; Qing-Feng Li; Hong-Fei Zhang

doi:10.1007/s41365-018-0510-1

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Collective flow and nuclear stopping in heavy ion collisions in Fermi energy domain

Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reactions (IWND2018) | Updated：2021-02-07

- Collective flow and nuclear stopping in heavy ion collisions in Fermi energy domain
- Nuclear Science and Techniques Vol. 29, Issue 12, Article number: 177(2018)
- Affiliations：
  
  1.School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  2.School of Science, Huzhou University, Huzhou 313000, China
  3.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Author bio：
  
  wangyongjia@zjhu.edu.cn;
  liqf@zjhu.edu.cn
- Funds：
- DOI：10.1007/s41365-018-0510-1
  CLC：
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Peng-Cheng Li, Yong-Jia Wang, Qing-Feng Li, et al. Collective flow and nuclear stopping in heavy ion collisions in Fermi energy domain. [J]. Nuclear Science and Techniques 29(12):177(2018)
DOI：

Peng-Cheng Li, Yong-Jia Wang, Qing-Feng Li, et al. Collective flow and nuclear stopping in heavy ion collisions in Fermi energy domain. [J]. Nuclear Science and Techniques 29(12):177(2018) DOI： 10.1007/s41365-018-0510-1.

摘要

Abstract

The effects of the in-medium nucleon-nucleon (,NN,) elastic cross section on the observables in heavy ion collisions in the Fermi energy domain are investigated within the framework of the ultrarelativistic quantum molecular dynamics model. The results simulated using medium correction factors of , $F = σ_{N N}^{in - medium} / σ_{N N}^{free} = 0.2, 0.3, 0.5$ , and the density- and momentum-dependent factor obtained from the FU3FP1 parametrization are compared with the FOPI and INDRA experimental data. It is found that the calculations using the correction factors , $F$ , = 0.2 and 0.5 reproduce the experimental data (i.e., collective flow and nuclear stopping) at 40 and 150 MeV/nucleon, respectively. Calculations with the FU3FP1 parametrization can best fit these experimental data. These conclusions can be confirmed in both ,197,Au+,197,Au and ,129,Xe+,120,Sn.

关键词

Keywords

Nucleon-nucleon elastic cross sectionHeavy ion collisionsNuclear stoppingCollective flow.

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