Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2018, Vol. 29 ›› Issue (6): 78 doi: 10.1007/s41365-018-0427-8

• NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

Decay modes of highly excited nuclei

Zhen-Fang Zhang 1,2 • De-Qing Fang 1 • Yu-Gang Ma 1   

  1. 1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Contact: De-Qing Fang E-mail:dqfang@sinap.ac.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (Nos. 11421505, 11475244, and 11175231) and the National Key Research and Development Program of China (High Precision Nuclear Physics Experiments).

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Zhen-Fang Zhang, De-Qing Fang, Yu-Gang Ma. Decay modes of highly excited nuclei.Nuclear Science and Techniques, 2018, 29(6): 78     doi: 10.1007/s41365-018-0427-8

Abstract:

The deexcitation of single excited 112Sn nuclei at T = 1–30 MeV is simulated using the isospin-dependent quantum molecular dynamics (IQMD) model and GEMINI model. The fragmentation mechanism, critical behavior, and kinematic characteristics are investigated within these two models. The results show that the IQMD model can be applied to the analysis of fragmentation processes, critical points, and slope temperature extraction. The results of IQMD are generally consistent with experimental <MIMF> -Zbound data. However, GEMINI can reproduce the experimental data better than IQMD for isotopic distributions.

Key words: Excited nuclei, IQMD model, GEMINI model, Deexcitation