Elastic and inelastic scattering of 6Li and 7Li by 54Fe at E = 36–50 MeV |
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Authors: | KW Kemper AF Zeller TR Ophel DF Hebbard A Johnston DC Weisser |
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Institution: | Department of Nuclear Physics, The Australian National University, Canberra, Australia |
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Abstract: | Detailed angular distributions for the elastic and inelastic scattering of 7Li at E = 36, 42, and 48 MeV and of 6Li at E = 38, 44, and 50 MeV by 54Fe have been measured. It is not possible to describe both sets of data with the same set of optical-model parameters. The ratio of is 0.8 for 7Li and 1.4 for 6Li at the strong absorption radius, implying stronger absorption for 7Li than for 6Li. No energy dependence in the optical-model parameters was necessary for either 6Li or 7Li. The inelastic scattering from the 54Fe 2+, 1.41 MeV state was well described by the DWBA and the extracted deformation length (βR = 0.62) was the same for both 6Li and 7Li scattering. It was not possible to describe the 7Li projectile excitation data with collective-model DWBA calculations showing that more detailed calculations for the projectile excitation are necessary. |
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Keywords: | Nuclear reactions |
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