https://doi.org/10.1140/epja/i2018-12580-8
Regular Article - Theoretical Physics
Energy dependence of light (anti)nuclei and (anti)hypertriton production in the Au-Au collision from
to 5020 GeV
1
School of Mathematics and Physics; Network and Educational Technology Center, China University of Geosciences, 430074, Wuhan, China
2
China Institute of Atomic Energy, P.O. Box 275 (10), 102413, Beijing, China
3
Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, 430079, Wuhan, China
* e-mail: chengang1@cug.edu.cn
Received:
21
May
2018
Accepted:
8
August
2018
Published online:
3
September
2018
The energy dependence of light (anti)nuclei and (anti)hypertriton production are investigated in central Au-Au collisions from AGS up to LHC energies at midrapidity, using the parton and hadron cascade model (PACIAE) together with the dynamically constrained phase-space coalescence model(DCPC). We find that the yields, yield ratios of the antiparticles to their corresponding particles, the coalescence parameters and the strangeness population factor
of light (anti)nuclei and (anti)hypertriton all show strong dependences on the energy. Furthermore, we analyze and discuss the strangeness population factor
and the coalescence parameters
, and find a transition point near 20 GeV. These results thus suggest, in relativistic heavy-ion collisions, the potential usefulness of the
and
of light nuclei production as an indirect probe of the transition point related to the QCD critical phenomena. The results from PACIAE+DCPC model are well consistent with experimental data within the error margin.
© SIF, Springer-Verlag GmbH Germany, part of Springer Nature, 2018