Influence of in-medium nucleon–nucleon cross section on the isoscaling parameter α

The influence of in-medium nucleon–nucleon cross section on the isoscaling parameter α is investigated for two couples of central nuclear reactions and ; and within the isospin dependent quantum molecular dynamics. The calculated result shows that the influence of the in-medium nucleon–nucleon cross section on the isoscaling parameter α is mainly determined by the corresponding number of collisions, both for isospin dependent and isospin independent parameterizations. The mechanisms behind the effects of the in-medium nucleon–nucleon cross sections on the α are investigated in more details.