Influence of Cluster Configurations and Nucleon--Nucleon Scattering Cross-Section on Stopping Power in Heavy-Ion Collisions

Abstract

We investigate the impacts of nuclear $\alpha$-clustering structures and nucleon--nucleon cross-section on nuclear stopping power for ${}^{16}\text{O}$ + ${}^{40}\text{Ca}$ collisions below 300 MeV/nucleon using an extended quantum molecular dynamics (EQMD) model. Our results show that the specific $\alpha$-clustering configurations of ${}^{16}\text{O}$--including chain, square, kite, and tetrahedron--have a significant effect on collision dynamics. Among them, the tightly bound tetrahedral structure exhibits the highest stopping power. Moreover, the repulsive Coulomb interaction is found to reduce the stopping power of protons in the Fermi-energy domain. At higher energies, the decreasing trend is influenced by both the nucleon--nucleon cross-section and the mean field.

8 pages, 7 figures

References in corpus (25)

• Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
• Symmetry energy of dilute warm nuclear matter
• Giant Dipole Resonance as a Fingerprint of $\alpha$ Clustering Configurations in ${}^{12}$C and ${}^{16}$O
• Evidence of quadrupole and octupole deformations in ${}^{96}$Zr+${}^{96}$Zr and ${}^{96}$Ru+${}^{96}$Ru collisions at ultra-relativistic energies
• Imaging Shapes of Atomic Nuclei in High-Energy Nuclear Collisions
• Dynamics of clusters and fragments in heavy-ion collisions
• In-medium NN cross sections determined from stopping and collective flow in intermediate-energy heavy-ion collisions
• Imaging the initial condition of heavy-ion collisions and nuclear structure across the nuclide chart
• In-medium effects for nuclear matter in the Fermi energy domain
• Evidence of Hexadecapole Deformation in Uranium-238 at the Relativistic Heavy Ion Collider
• Separating the impact of nuclear skin and nuclear deformation in high-energy isobar collisions
• Signatures of $\alpha$ clustering in ${}^{16}$O by using a multiphase transport model
• QCD Equation of State of Dense Nuclear Matter from a Bayesian Analysis of Heavy-Ion Collision Data
• Alpha clusters and collective flow in ultra-relativistic carbon - heavy nucleus collisions
• Exploring the compactness of $\alpha$ cluster in ${}^{16}$O nuclei with relativistic ${}^{16}$O+${}^{16}$O collisions
• Shear viscosity of nucleonic matter
• Hexadecapole deformation of ${}^{238}$U from relativistic heavy-ion collisions using a nonlinear response coefficient
• Light nuclei production in Au + Au collisions at $\sqrt{s_{NN}}$ = 7.7-80 GeV from UrQMD model
• Precision tests of the nonlinear mode coupling of anisotropic flow via high-energy collisions of isobars
• Impact of nuclear structure on the CME background in ${}_{44}^{96}$Ru + ${}_{44}^{96}$Ru and ${}_{40}^{96}$Zr + ${}_{40}^{96}$Zr collisions at $\sqrt{s_{NN}}$ = 7.7 $\sim$ 200 GeV from a multiphase transport model
• Effect of initial-state geometric configurations on the nuclear liquid-gas phase transition
• Bayesian inference of neutron-skin thickness and neutron-star observables based on effective nuclear interactions
• Impact of initial fluctuations and nuclear deformations in isobar collisions
• Direct photon emission and influence of dynamical wave packets in an extended quantum molecular dynamics model
• Isovector giant dipole resonance mode with an improved propagation approach in the framework of EQMD model