Comparison between nuclear thermometers in central Xe+Sn collision  

作　　者：GUO Chenchen SU Jun ZHANG Fengshou 

机构地区：[1]The Key Laboratory of Beam Technology and Material Modification of Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University [2]Beijing Radiation Center [3]Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou

出　　处：《Nuclear Science and Techniques》2013年第5期67-70,共4页核技术（英文）

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

摘　　要：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.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.

关 键 词：重离子碰撞 温度计 量子分子动力学模型 中央 GEMINI 同位旋相关 模型组合 费米能级 

分 类 号：O571.6[理学—粒子物理与原子核物理] TH811[理学—物理]