Boltzmann-Uehling-Uhlenbech calculation of total reaction cross-section and fragmentation cross-section

摘要

σ_R, σ_(-n) and σ_(-2n) have been calculated via the BUU model with soft EOS and 0.8 times of σ_(Cug). The density distribution without any adjustable parameters which comes from the RMF model has been introduced into the BUU calculation to replace the normally used one-parameter square-type distribution. The calculated results can reproduce the experimental data well for both halo- and stable-nuclei-induced reactions. Here σ_(-n) or σ_(-2n) is calculated as the difference between σ_R of halo nucleus and core nucleus, by assuming σ_(corr) approx= 0. It indicates that this assumption works very well at high energy in the BUU calculation. More experimental measurements are necessary to test the validity of this assumption at intermediate energy.