Describing the heavy-ion above-barrier fusion using the bare potentials resulting from Migdal and M3Y double-folding approaches

I. I. Gontchar, M. V. Chushnyakova

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    Systematic calculations of the Coulomb barrier parameters for collisions of spherical nuclei are performed within the framework of the double folding approach. The value of the parameter (which estimates the Coulomb barrier height) varies in these calculations from 10 MeV up to 150 MeV. The nuclear densities came from the Hartree-Fock calculations which reproduce the experimental charge densities with good accuracy. For the nucleon-nucleon effective interaction two analytical approximations known in the literature are used: the M3Y and Migdal forces. The calculations show that Migdal interaction always results in the higher Coulomb barrier. Moreover, as B Z increases the difference between the M3Y and Migdal barrier heights systematically increases as well. As the result, the above barrier fusion cross sections calculated dynamically with the M3Y forces and surface friction are in agreement with the data. The cross sections calculated with the Migdal forces are always below the experimental data even without accounting for the dissipation.

    Original languageEnglish
    Article number045111
    JournalJournal of Physics G: Nuclear and Particle Physics
    Volume43
    Issue number4
    DOIs
    Publication statusPublished - 22 Feb 2016

    Keywords

    • double folding potential
    • heavy-ion fusion
    • Migdal and M3Y NN forces

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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