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Reduced neutron spectroscopic factors when using potential geometries constrained by Hartree-Fock calculations

Jenny Lee·J. A. Tostevin·B. A. Brown·F. Delaunay·W. G. Lynch·M. J. Saelim·M. B. Tsang
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Abstract

We carry out a systematic analysis of angular distribution measurements for selected ground-state to ground-state (d,p) and (p,d) neutron transfer reactions, including the calcium isotopes. We propose a consistent three-body model reaction methodology in which we constrain the transferred-neutron bound state and nucleon-target optical potential geometries using modern Hartree-Fock calculations. Our deduced neutron spectroscopic factors are found to be suppressed by ~30% relative to independent-particle shell-model values, from 40Ca through 49Ca. The other nuclei studied, ranging from B to Ti, show similar average suppressions with respect to large-basis shell-model expectations. Our results are consistent with deduced spectroscopic strengths for neutrons and protons from intermediate energy nucleon knockout reactions, and for protons from (e,e'p) reactions, on well-bound nuclei. PACS: 24.50.+g, 24.10.Eq, 25.40.-h, 25.45.-z

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Jenny Lee, J. A. Tostevin, B. A. Brown, F. Delaunay, W. G. Lynch, M. J. Saelim, M. B. Tsang. 2006-01-27. Reduced neutron spectroscopic factors when using potential geometries constrained by Hartree-Fock calculations. https://doi.org/10.1103/physrevc.73.044608

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