Abstract
The role of three-parameter Fermi (3pF) and three-parameter Gaussian (3pG) density functions on the fusion dynamics has been explored in comparison to the two-parameter Fermi (2pF) within the semiclassical Skyrme Energy Density Formalism. For the case of the three-parameterized density functions (3pF and 3pG), an additional parameter ‘w’ influences the tail and nearby region, and hence the barrier characteristics get modified accordingly. In view of this, the role of 2pF, 3pF and 3pG density functions has been analyzed by calculating the fusion barrier height VB (and barrier position RB) for a variety of nuclear reactions with the mass-asymmetry spread from symmetric to extreme asymmetric reaction partners, and the results are compared with the available data. In addition to this, the fusion cross-sections for 58Ni-based reactions are also calculated using extended ℓ-summed Wong model and the collective effect of VB, RB and ħωB (barrier height, position and curvature respectively) for the use of above mentioned density distributions has been examined. It is found that 2pF density functional is more suitable for symmetric reactions, whereas 3pF and 3pG seems to be appropriate for asymmetric reactions.
Published Version
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