Abstract
Recoil range distributions of evaporation residues, populated in 20 Ne + 51 V reaction at Elab ≈ 145 MeV, have been studied to determine the degree of momentum transferred through the complete and incomplete fusion reactions. Evaporation residues (ERs) populated through the complete and incomplete fusion reactions have been identified on the basis of their recoil range in the Al catcher medium. Measured recoil range of evaporation residues have been compared with the theoretical value calculated using the code SRIM. Range integrated cross section of observed ERs have been compared with the value predicted by statistical model code PACE4.
Highlights
Where R is the maximum impact parameter at which the collision leads to a nuclear fusion reaction, and VB is the fusion barrier
The phenomenon of particle and/or γ-ray emission from the excited compound system is governed by the excitation energy of the compound system which in turn depends upon the degree of momentum transferred through the Complete fusion (CF) and/or incomplete fusion (ICF) processes
In the first stage, called ‘fusion stage’, an intermediate compound system is formed through the CF and/or ICF processes and the second stage, called ‘evaporation stage’, involves the deexcitation of the intermediate compound system through the particle and/or γ-ray emission
Summary
Where R is the maximum impact parameter at which the collision leads to a nuclear fusion reaction, and VB is the fusion barrier. According to sumrule model, proposed by Wilczynski et al [18], ICF reaction channels are localized in angular momentum space above crt. There is no theoretical model proposed so far which could predict the exact fractional contribution arising from CF and/or ICF. Measurements of recoil range distribution (RRD) of ERs populated through α-emitting channels was proved to be an important tool in determining the magnitude of contributions arising from each of the possible reaction dynamics.
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