2018/03/08 by Xiao-Hua Fan, Gao-Chan Yong, Wei Zuo
Physics and Astronomy · #Atomic physics #Beam (structure) #Beam energy #Elliptic flow #Energy (signal processing) #Heavy ion #High-Energy Particle Collisions Research #Ion #Isospin #Nuclear physics #Nuclear physics research studies #Nucleon #Observable #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Symmetry (geometry) #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.97.034604
published as Phys. Rev. C 97, 034604 (2018) · 5 pages, 6 figures
openalex publication_date 2018/03/08 · arxiv created 2018/03/09 · arxiv updated 2018/03/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, sensitive regions of some nucleon observables to the nuclear symmetry energy are studied. It is found that the symmetry-energy-sensitive observable n/p ratio in the 132Sn+124Sn reaction at 0.3 GeV/nucleon in fact just probes the density-dependent symmetry energy below the density of 1.5\ensuremathρ0 and effectively probes the density-dependent symmetry energy around or somewhat below the saturation density. Nucleon elliptic flow can probe the symmetry energy from the low-density region to the high-density region when changing the incident beam energies from 0.3 to 0.6 GeV/nucleon in the semi-central 132Sn+124Sn reaction. And nucleon transverse and elliptic flows in the semi-central 197Au+197Au reaction at 0.6 GeV/nucleon are more sensitive to the high-density behavior of the nuclear symmetry energy. One thus concludes that nucleon observables in the heavy reaction system and with higher incident beam energy are more suitable to be used to probe the high-density behavior of the symmetry energy. The present study may help one to get more specific information about the density-dependent symmetry energy from nucleon flow observable in heavy-ion collisions at intermediate energies.