Disappearance of flow in intermediate-energy nucleus-nucleus collisions

Journal Article · Mon Nov 11 04:00:00 EST 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.2769· OSTI ID:6155159

Xu, H M ^[1]

---

1. Cyclotron Institute, Texas A M University, College Station, Texas (USA) National Superconducting Cyclotron Laboratory and Department of Physics, Michigan State University, East Lansing, Michigan (USA)

The disappearance of transverse collective flow for {sup 40}Ar+{sup 27}Al collisions is studied with an improved Boltzmann-Uehling-Uhlenbeck equation. For collisions at impact parameters less than 3 fm, the predicted energy of balance, {ital E}{sub bal}, is very sensitive to the in-medium nucleon-nucleon cross section, but insensitive to the equation of state. At larger impact-parameter collisions, the sensitivities to both the in-medium nucleon-nucleon cross section and the equation of state at subnuclear density becomes comparable. Comparisions with experimental data indicate an in-medium nucleon-nucleon cross section in the range of 25--45 mb.

• DOE Contract Number: FG05-86ER40256
• OSTI ID: 6155159
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:20; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663530 -- Nuclear Mass Ranges-- A=20-38-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 TARGET
ARGON 40 REACTIONS
BARYON-BARYON INTERACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
EQUATIONS
EQUATIONS OF STATE
EXPERIMENTAL DATA
HADRON-HADRON INTERACTIONS
HEAVY ION REACTIONS
INFORMATION
INTERACTIONS
MEAN-FIELD THEORY
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PARTICLE RAPIDITY
TARGETS