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 ›› 2013, Vol. 24 ›› Issue (5): 050513 doi: 10.13538/j.1001-8042/nst.2013.05.013

Special Issue: Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2012)

• Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2012) • Previous Articles     Next Articles

Comparison between nuclear thermometers in central Xe+Sn collision  

GUO Chenchen1,2  SU Jun1,2  ZHANG Fengshou1,2,3,*     

  1. 1The Key Laboratory of Beam Technology and Material Modification of Ministry of Education,College of Nuclear Science and Technology, Beijing Normal University,Beijing100875,China
    2Beijing Radiation Center, Beijing 100875, China
    3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou 730000, China  
  • Received:2013-06-27
  • Contact: ZHANG Fengshou E-mail:fszhang@bnu.edu.cn
  • Supported by:

    Supported by National Natural Science Foundation of China (Grant Nos.11025524 and 11161130520) and National Basic Research Program of China (Grant No.2010CB832903).

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GUO Chenchen, SU Jun, ZHANG Fengshou. Comparison between nuclear thermometers in central Xe+Sn collision  .Nuclear Science and Techniques, 2013, 24(5): 050513     doi: 10.13538/j.1001-8042/nst.2013.05.013

Abstract:

The temperature of fragmenting source in central heavy-ion collisions at Fermi energy is investigated by the isospin-dependent quantum molecular dynamics model in combination with the statistical decay model GEMINI. Five different nuclear thermometers are used to extract nuclear temperature. We find that the He and Li isotope temperature reaches a plateau at about 70–100 MeV/nucleon of beam energy. The slope temperature and the quadrupole fluctuation temperature give high values. The quantum slope temperature and the quantum quadrupole fluctuation temperature are more close to the He and Li isotope temperatures. 

Key words: Heavy-ion collision, Nuclear temperature, Phase transitions