https://doi.org/10.1140/epja/i2019-12851-x
Regular Article - Theoretical Physics
Light (anti)nuclei production in Cu+Cu collisions at
GeV
1
Institute of Geophysics and Geomatics, China University of Geosciences, 430074, Wuhan, China
2
School of Mathematics and Physics, China University of Geosciences, 430074, Wuhan, China
3
Institute of Particle Physics, Central China Normal University, 430079, Wuhan, China
* e-mail: chengang1@cug.edu.cn
Received:
17
June
2019
Accepted:
9
August
2019
Published online:
20
September
2019
The production of light (anti)nuclei is investigated using the dynamically constrained phase-space coalescence model based on the final-state hadrons generated by the PACIAE model in Cu+Cu collisions at GeV with
and
GeV/c. The results show that there is a strong centrality dependence of yields of d,
, 3He,
, 4He, and
, i.e., their yields decrease rapidly with the increase of centrality, and the greater the mass, the greater the dependence, whereas their ratios of antinucleus to nucleus remain constant as the centrality increases. The coalescence parameter
lightly decreases with the increasing of
. In addition, the yields of (anti)nuclei are strongly dependent on the mass of the (anti)nuclei, indicating that the (anti)nuclei produced have mass scaling properties in high-energy heavy-ion collisions. Our results are consistent with the STAR experimental data.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2019