Elsevier

Nuclear Physics A

Volume 436, Issue 2, 1 April 1985, Pages 236-264
Nuclear Physics A

Inelastic scattering and reaction data analysis for the 3He+44,48Ca systems

https://doi.org/10.1016/0375-9474(85)90198-8Get rights and content

Abstract

Analysing-power and cross-section distributions for the inelastic and single-nucleon transfer reactions involving the scattering of 33 MeV polarised helions from 44,48Ca targets have been measured, and analysed with the DWBA framework. The inelastic scattering distributions are found to be insensitive to the ambiguities in the spin-orbit component of the distorting optical-model potential — which are shown to exist when fitting the elastic data. The deformation length is found to be a better representative of the nuclear shape than the deformation parameter. For the (3He, d) and (3He, α) reactions, both the zero-range and finite-range (within the local-energy approximation) calculations have been carried out and several effects such as the inclusion of non-locality correction, the j-dependence of the distributions, and the sensitivity of the predictions to the entrance- and exit-channel distorting potentials are discussed. The deduced spectroscopic factors are consistently lower than the values reported in the literature by other investigators, although the relative spectroscopic factors are shown to be in good agreement with those of others. The data measured for the charge-exchange reactions, 48Ca(3He, t), populating a number of levels in 48Sc are also presented.

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    Present address: Florida State University, Dept. of Physics, Tallahasee, Florida 32306, USA.

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