Speaker
Description
Recent experimental data have demonstrated that the coupled-channels
approach significantly overestimates fusion cross sections at deep subbarrier
energies. This phenomenon, referred to as fusion hindrance,
was first identified in the 60Ni+89Y system, and has subsequently been observed
in several other medium-heavy systems, such as 64Ni+64Ni. However, it remains
unclear to what extent fusion hindrance occurs in lighter systems, such as 12C+12C,
which are of critical importance to nuclear astrophysics.
In this contribution, I will present our recent reanalysis of fusion cross sections for
the 12C+12,13C systems and discuss the presence or absence of the fusion hindrance
phenomenon in these systems. I will also present our recent attempts to describe
fusion cross sections of these systems by combining a reaction model with shell model
calculations for the compound nuclei, 24,25Mg.
| Category | Theory |
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