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, and M. B. Tsang
Phys. Rev. C 73, 044608 – Published 11 April 2006

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 Ca40 through Ca49. 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.

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  • Received 9 November 2005

DOI:https://doi.org/10.1103/PhysRevC.73.044608

©2006 American Physical Society

Authors & Affiliations

Jenny Lee1, J. A. Tostevin1,2, B. A. Brown1, F. Delaunay1, W. G. Lynch1, M. J. Saelim1, and M. B. Tsang1

  • 1National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
  • 2Department of Physics, School of Electronics and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom

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Vol. 73, Iss. 4 — April 2006

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