Nucleon flow and fragment flow in heavy ion reactions

Akira Ono, Hisashi Horiuchi, Toshiki Maruyama

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62 Citations (Scopus)


The collective flow of nucleons and that of fragments in the C12+12C reaction below 150 MeV/nucleon are calculated with the antisymmetrized version of molecular dynamics combined with the statistical decay calculation. The density dependent Gogny force is used as the effective interaction. The calculated balance energy is about 100 MeV/nucleon, which is close to the observed value. Below the balance energy, the absolute value of the fragment flow is larger than that of nucleon flow, which is also in accordance with data. The dependence of the flow on the stochastic collision cross section and its origin are discussed. All the results are naturally understood by introducing the concept of two components of flow: the flow of dynamically emitted nucleons and the flow of the nuclear matter which contributes to both the flow of fragments and the flow of nucleons due to the statistical decay.

Original languageEnglish
Pages (from-to)2946-2955
Number of pages10
JournalPhysical Review C
Issue number6
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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