Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2002-07-15
Phys.Rev. C66 (2002) 047601
Physics
Nuclear Physics
Nuclear Experiment
9 pages, 4 figures, 1 table
Scientific paper
10.1103/PhysRevC.66.047601
The inclusive energy distributions of fragments (3$\leq$Z$\leq$7) emitted in the reaction $^{16}$O + $^{27}$Al at $E_{lab} = $116 MeV have been measured in the angular range $\theta_{lab} $= 15$^\circ$ - 115$^\circ$. A non-linear optimisation procedure using multiple Gaussian distribution functions has been proposed to extract the fusion-fission and deep inelastic components of the fragment emission from the experimental data. The angular distributions of the fragments, thus obtained, from the deep inelastic component are found to fall off faster than those from the fusion-fission component, indicating shorter life times of the emitting di-nuclear systems. The life times of the intermediate di-nuclear configurations have been estimated using a diffractive Regge-pole model. The life times thus extracted ($\sim 1 - 5\times 10^{-22}$ Sec.) are found to decrease with the increase in the fragment charge. Optimum Q-values are also found to increase with increasing charge transfer i.e. with the decrease in fragment charge.
Banerjee S. R.
Basu D. N.
Basu S. K.
Bhattacharjee T.
Bhattacharya Chandana
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