Phenomenological Scaling of Rapidity Dependence for Anisotropic Flows in 25MeV/nucleon Ca+Ca by Quantum Molecular Dynamics Model
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Abstract
Anisotropic flows (v1, v2, v3 and v4) of light fragments up to the mass number 4 as a function of rapidity are studied for 25MeV/nucleon 40Ca + 40Ca at large
impact parameters by a quantum molecular dynamics model. A phenomenological scaling behaviour of rapidity dependent flow parameters vn (n = 1, 2, 3 and 4) is found as a function of mass number plus a constant term, which may arise from the interplay of collective and random motions. In addition, v4v22 keeps to be almost independent of rapidity and remains a
rough constant of 1/2 for all light fragments.
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