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Nucleon-number scalings of anisotropic flows and nuclear modification factor for light nuclei in the squeeze-out region

  • T. T. Wang
  • Y. G. MaEmail author
Regular Article - Theoretical Physics
  • 27 Downloads

Abstract.

The number of nucleon (NN) scaling of the directed flow v1 and elliptic flow ( \( v_{2}\) as well as the nuclear modification factor ( \( R_{cp}\) are tested for light nuclei which are produced in 0.4A GeV 197Au + 197Au collisions at different impact parameters with two different in-medium nucleon-nucleon cross sections in the framework of an isospin-dependent quantum molecular dynamics (IQMD) model. In that energy domain, the emission of light nuclei can be well described by the squeeze-out phenomenon. The results show a nice NN scaling behavior for flow parameters \( v_{1}\) , \( v_{2}\) and \( R_{cp}\) . These results demonstrate that the nucleon coalescence mechanism is responsible for nucleon-number scaling of above physical observables in the squeeze-out region in heavy-ion collisions at intermediate energy.

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Copyright information

© Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghaiChina
  2. 2.University of Chinese Academy of SciencesBeijingChina
  3. 3.Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern PhysicsFudan UniversityShanghaiChina

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