Properties of the Scaling of Collective Flow in Intermediate Energy Heavy ion Collisions
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Graphical Abstract
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Abstract
The properties of light particles’ collective flows from 40Ca+40Ca, 50Ca+40Ca, 64Cu+64Cu and 197Au+197Au systems are simulated by Isospin-dependent Quantum Molecular Dynamics model. Transverse momentum dependent elliptic flows from different systems are found to be scaled by nucleon numbers of fragment in intermediate energy, and v4=v 22 scaling is also found and nearly to be a constant 0.5 for different light fragments.These scaling behaviors are investigated for different collision energies, impact parameters, nuclear equation of states and found insensitive to the above physical quantities, which may be the result of coalescence mechanism that describes the formation of fragments.
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