Unified description of nuclear stopping in central heavy-ion collisions from 10A MeV to 1.2A GeV

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.034612· OSTI ID:21596763

Zhang, G Q; Zhou, C L ^[1]; Ma, Y G; Cao, X G; Cai, X Z; Fang, D Q; Tian, W D; Wang, H W ^[1]

---

1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 (China)

A detailed analysis of the wide excitation function of nuclear stopping has been conducted within a transport model, isospin-dependent quantum molecular dynamics model, and an overall good agreement with the INDRA and FOPI Collaborations' experimental data has been achieved. It is found that the mean value of isotropy in central heavy-ion collision (HIC) reaches a minimum near-Fermi energy and approaches a maximum at around 300-400A MeV. This suggests that, in statistical average, the equilibration is far from being reached, even in central HIC especially near Fermi energy. A hierarchy in the stopping of fragments, which favors heavy fragments to penetrate, provides a robust restriction on the global trend of nuclear stopping and could serve as a probe for nuclear equations of state.

• OSTI ID: 21596763
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 84, Issue 3; Other Information: DOI: 10.1103/PhysRevC.84.034612; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EQUATIONS OF STATE
EXCITATION FUNCTIONS
GEV RANGE 01-10
HEAVY ION REACTIONS
ISOSPIN
ISOTROPY
MEV RANGE
MOLECULAR DYNAMICS METHOD
STOPPING POWER
TRANSPORT THEORY
CALCULATION METHODS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ENERGY RANGE
EQUATIONS
FUNCTIONS
GEV RANGE
NUCLEAR REACTIONS
PARTICLE PROPERTIES