Abstract
The fusion cross sections of the 12C + 12C system at low energies E c.m. = 1.5–9 MeV have been analyzed in the optical model. Optical potentials with variable geometry were developed to fit the angular distributions of the 12C + 12C elastic scattering and to reproduce the intermediate resonant structure for the 90° elastic-scattering excitation function in the energy region E c.m. = 2.5–19 MeV. Calculations showed that the deep optical potential with an energy-dependent adjusted power parameter and an energy-dependent imaginary strength W is valid to give a good description of the individual elastic-scattering angular distributions and to reproduce the most prominent features of the fusion and the elastic scattering excitation functions for the 12C + 12C system at energies above and below the Coulomb barrier, the resonances of some 0.2 to 1.5 MeV in width, which is associated with quasimolecular doorway states. The astrophysical S factor obtained from the fusion experimental data also is reproduced successfully.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
