https://doi.org/10.1140/epja/i2019-12788-0
Regular Article - Theoretical Physics
Nucleon-number scalings of anisotropic flows and nuclear modification factor for light nuclei in the squeeze-out region
1
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800, Shanghai, China
2
University of Chinese Academy of Sciences, 100049, Beijing, China
3
Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern Physics, Fudan University, 200433, Shanghai, China
* e-mail: mayugang@cashq.ac.cn
Received:
28
March
2019
Accepted:
28
May
2019
Published online:
28
June
2019
The number of nucleon (NN) scaling of the directed flow v1 and elliptic flow ( 
as well as the nuclear modification factor ( 
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 
, and . 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.
© Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature, 2019
