Medium effect of nucleon-nucleon cross section on the isoscaling parameter alpha

作者：Liu Jian Ye^*; Hao Huan Feng; Zuo Wei; Lee Xi Guo

来源：International Journal of Modern Physics E-Nuclear Physics, 2008, 17(6): 1083-1090.

DOI：10.1142/S0218301308010374

• isoscaling
• medium effect
• nucleon-nucleon cross section
• mechanism

The medium effect of in-medium nucleon-nucleon cross section sigma(med)(NN) (alpha(m)) on the isoscaling parameter a is investigated for two couples of central nuclear reactions (40)Ca + (48)Ca and (60)Ca + (48)Ca; (112)Sn + (112)Sn and (124)Sn + (124)Sn at beam energy region from 40 to 60 MeV/nucleon with isospin dependent quantum molecular dynamics. It is found that there is the obvious medium effect of sigma(med)(NN) (alpha(m)) on the isoscaling parameters alpha. The mechanism for the medium effect of sigma(med)(NN) (alpha(m)) on a is investigated.

• 出版日期2008-6
• 单位中国科学院近代物理研究所; 天水师范学院