Collective flows of clusters in the isotopic nuclear reactions with a kinetic approach

Within the framework of Lanzhou quantum molecular dynamics transport model, the production of deuteron, triton, 3 He, and α in collisions of 132 Sn + 124 Sn, 124 Sn + 124 Sn and 108 Sn + 112 Sn at 270 A MeV has been systematically investigated with a kinetic approach. It is demonstrated that the cluster production is correlated with the binding energy cluster potential, Mott effect etc, and the larger yields of deuteron and α in comparison with the triton and 3 He production. The mid-rapidity slope parameters of directed flows in the isotopic reactions increase with the mass number of cluster. The out-of-plane emission of protons is dominant in comparison with the cluster production and manifests the cluster formation at the compression stage in nuclear collisions. The emission timescale of clusters is correlated with the cluster formation in the cascade collisions and transportation in nuclear medium.