1 The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Department of Material Science and Engineering, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 1008752Beijing Radiation Center, Beijing 1008753Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000
Isospin Effects of Threshold Energy of Radial Flow in Heavy Ion Collisions
1 The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Department of Material Science and Engineering, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 1008752Beijing Radiation Center, Beijing 1008753Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000
摘要The threshold energies of radial flow in reactions of 40Ca+40Ca and 48Ca+48Ca in central collisions are investigated within an isospin dependent quantum molecular dynamics model by using three different forms of symmetry energy. It is found that the neutron-rich system has smaller threshold energy of radial flow and this quantity depends on the form of symmetry potential. It is indicated that the threshold energy of radial flow can provide a new method to determine the symmetry energy of asymmetric nuclear matter.
Abstract：The threshold energies of radial flow in reactions of 40Ca+40Ca and 48Ca+48Ca in central collisions are investigated within an isospin dependent quantum molecular dynamics model by using three different forms of symmetry energy. It is found that the neutron-rich system has smaller threshold energy of radial flow and this quantity depends on the form of symmetry potential. It is indicated that the threshold energy of radial flow can provide a new method to determine the symmetry energy of asymmetric nuclear matter.
BIAN Bao-An;ZHANG Feng-Shou;;ZHOU Hong-Yu;. Isospin Effects of Threshold Energy of Radial Flow in Heavy Ion Collisions[J]. 中国物理快报, 2007, 24(6): 1529-1532.
BIAN Bao-An, ZHANG Feng-Shou, , ZHOU Hong-Yu,. Isospin Effects of Threshold Energy of Radial Flow in Heavy Ion Collisions. Chin. Phys. Lett., 2007, 24(6): 1529-1532.
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2007, Vol. 24 
