Effects of sequential decay on collective flows and nuclear stopping power in heavy-ion collisions at intermediate energies

Abstract

In this study, the rapidity distribution, collective flows, and nuclear stopping power in ${}^{197}\mathrm{Au}{+}^{197}\mathrm{Au}$ collisions at intermediate energies were investigated using the ultrarelativistic quantum molecular dynamics (UrQMD) model with GEMINI++ code. The UrQMD model was adopted to simulate the dynamic evolution of heavy-ion collisions, whereas the GEMINI++ code was used to simulate the decay of primary fragments produced by UrQMD. The calculated results were compared with the INDRA and FOPI experimental data. It was found that the rapidity distribution, collective flows, and nuclear stopping power were affected to a certain extent by the decay of primary fragments, especially at lower beam energies. Furthermore, the experimental data of the collective flows and nuclear stopping power at the investigated beam energies were better reproduced when the sequential decay effect was included.

9 pages, 8 figures, accepted by Nucl.Sci.Tech

References in corpus (16)

• Systematics of central heavy ion collisions in the 1A GeV regime
• Unified description of fission in fusion and spallation reactions
• Further developments of a multi-phase transport model for relativistic nuclear collisions
• Systematics of Stopping and Flow in Au+Au Collisions
• Dynamics of clusters and fragments in heavy-ion collisions
• Isobaric Yield Ratios and The Symmetry Energy In Fermi Energy Heavy Ion Reactions
• Comparison of Heavy-Ion Transport Simulations: Mean-field Dynamics in a Box
• Transport approaches for the Description of Intermediate-Energy Heavy-Ion Collisions
• In-medium effects for nuclear matter in the Fermi energy domain
• Progress of Quantum Molecular Dynamics model and its applications in Heavy Ion Collisions
• $\alpha$-clustering effect on flows of direct photons in heavy-ion collisions
• Accessing the in-medium effects on nucleon-nucleon elastic cross section with collective flows and nuclear stopping
• ${}^3$H/${}^3$He ratio as a probe of the nuclear symmetry energy at sub-saturation densities
• Free spectator nucleons in ultracentral relativistic heavy-ion collisions as a probe of neutron skin
• Effect of neutron skin thickness on projectile fragmentation
• Comparisons of Statistical Multifragmentation and Evaporation Models for Heavy Ion Collisions

Cited by in corpus (2)

• Momentum correlation of light nuclei in Au + Au collisions at $\sqrt{s_{NN}}$ = 2.0 $\sim$ 7.7 GeV
• Branching ratio and information entropy for the p+${}^{12}$C reaction in the extended-quantum-molecular-dynamics model