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

    Результат исследований: Материалы для журналаСтатья

    3 Цитирования (Scopus)

    Аннотация

    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.

    Язык оригиналаАнглийский
    Номер статьи045111
    ЖурналJournal of Physics G: Nuclear and Particle Physics
    Том43
    Номер выпуска4
    DOI
    СостояниеОпубликовано - 22 фев 2016

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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