Flow of nucleons and fragments in [sup 40]Ar+[sup 27]Al collisions studied with antisymmetrized molecular dynamics

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.51.299· OSTI ID:6703716

Ono, A; Horiuchi, H ^[1]

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1. Department of Physics, Kyoto University, Kyoto 606-01 (Japan)

Collective transverse momentum flow of nucleons and fragments in intermediate energy [sup 40]Ar+[sup 27]Al collisions is calculated with the antisymmetrized molecular dynamics (AMD). The observed flow and its balance energy are reproduced well by calculation with the Gogny force which corresponds to the soft equation of state (EOS) of nuclear matter. The calculated absolute value of the fragment flow is larger than that of the nucleon flow in the negative flow region, which can be explained by the existence of two components of flow. In addition to many similarities, the difference in the deuteron flow is found between [sup 12]C+[sup 12]C and [sup 40]Ar+[sup 27]Al collisions, and its origin is investigated by studying the production mechanism of light fragments. We also investigate the dependence of the flow of nucleons and fragments on the stochastic collision cross section and the effective interaction, and conclude that the stiff EOS without momentum dependence of the mean field is not consistent with the experimental data.

• OSTI ID: 6703716
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 51:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 TARGET
ARGON 40 REACTIONS
BARYONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
EQUATIONS
EQUATIONS OF STATE
FERMIONS
HADRONS
HEAVY ION REACTIONS
MANY-BODY PROBLEM
MATTER
NUCLEAR FRAGMENTATION
NUCLEAR MATTER
NUCLEAR REACTIONS
NUCLEONS
TARGETS