Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2018 Impact factor 0.961

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (6): 131 doi: 10.1007/s41365-016-0138-y

Special Issue: Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2016)

• Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2016) • Previous Articles     Next Articles

Investigation on symmetry and characteristic properties of the fragmenting source in heavy-ion reactions through reconstructed primary isotope yields

Fang-Fang Duan 1,2, Xing-Quan Liu 2, Wei-Ping Lin 2,3, Ryoichi Wada 4, Jian-Song Wang 2, Mei-Rong Huang 4, Pei-Pei Ren 2,3, Yan-Yun Yang 2, Peng Ma 2, Jun-Bing Ma 2, Shi-Lun Jin  2, Zhen Bai  2, Qi Wang  2   

  1. 1 School of Physical Science and Technology, Southwest University, Chongqing 400715, China
    2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    3 University of Chinese Academy of Sciences, Beijing 100049, China
    4 Cyclotron Institute, Texas A&M University, College Station, TX 77843, USA
  • Received:2016-06-20 Revised:2016-06-29 Accepted:2016-07-11
  • Contact: Xing-Quan Liu E-mail:liuxingquan@impcas.ac.cn
  • Supported by:

    This work was supported by the Program for the CAS “Light of West China” Program (No. Y601030XB0), the National Basic Research Program of China (No. 2014CB845405) and the National Natural Science Foundation of China (Nos. 11205209 and 11575256).

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Fang-Fang Duan, Xing-Quan Liu, Wei-Ping Lin, Ryoichi Wada, Jian-Song Wang, Mei-Rong Huang, Pei-Pei Ren, Yan-Yun Yang, Peng Ma, Jun-Bing Ma, Shi-Lun Jin, Zhen Bai, Qi Wang. Investigation on symmetry and characteristic properties of the fragmenting source in heavy-ion reactions through reconstructed primary isotope yields.Nuclear Science and Techniques, 2016, 27(6): 131     doi: 10.1007/s41365-016-0138-y

Abstract:

In this report, a kinematical focusing technique will be briefly described, and using this technique, the primary hot isotope yields from the multiplicities of evaporated light particles, associated with isotopically identified intermediate mass fragments, are reconstructed. Symmetry energy and characteristic properties of the fragmenting source at the time of the intermediate mass fragment formation are extracted from these reconstructed primary isotope yields using a self-consistent manner. The extracted density-dependent symmetry energy is further compared with those experimentally extracted from other heavy-ion reactions in literatures. A direct connection between the freeze-out concept and transport model simulations in a multifragmenting regime of heavy-ion collisions is also demonstrated quantitatively in the present work.

Key words: Symmetry energy, Nuclear temperature, Nuclear density and freeze-out