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

. The number of nucleon (NN) scaling of the directed flow v 1 and elliptic flow ( v 2 as well as the nuclear modification factor ( R c p are tested for light nuclei which are produced in 0.4 A GeV 197 Au + 197 Au collisions at different impact parameters with two different in-medium nucleon-nucleon...

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Bibliographic Details
Published in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2019-06, Vol.55 (6), p.1-8, Article 102
Main Authors: Wang, T. T., Ma, Y. G.
Format: Article
Language:English
Subjects:
Coalescing
Hadrons
Heavy Ions
Ionic collisions
Molecular dynamics
Nuclear Fusion
Nuclear Physics
Nuclei
Parameters
Particle and Nuclear Physics
Physics
Physics and Astronomy
Regular Article - Theoretical Physics
Scaling
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Summary:. The number of nucleon (NN) scaling of the directed flow v 1 and elliptic flow ( v 2 as well as the nuclear modification factor ( R c p are tested for light nuclei which are produced in 0.4 A GeV 197 Au + 197 Au 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 c p . 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.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/i2019-12788-0