Nuclear structure studies with (e,e), (π,π), and (γ,π) reactions: Applications to B10

Phys. Rev. C 49, 776 – Published 1 February 1994
T. Sato, N. Odagawa, H. Ohtsubo, and T.-S. H. Lee

Abstract

Theoretical approaches for investigating nuclear structure with (e,e), (π,π), and (γ,π) reactions are presented and applied to study the shell-model description of B10. The distorted wave impulse approximation formulated in momentum space is used to calculate the cross sections of (π,π) and (γ,π) reactions from the πN→πN and πN→γN off-shell amplitudes which are generated from the model of Nozawa, Blankleider, and Lee[1]. It is found that the nonlocal effects due to πN off-shell dynamics and nucleon Fermi motion are important in predicting (γ,π) cross sections. The one-pion-exchange two-body exchange currents are included in (e,e) calculations. It is shown that the core polarization effects, calculated in a perturbation approach including excitations up to 6ħω, are essential in obtaining quantitative agreements with the data with no adjustable parameters. The predictions based on the shell model of Cohen and Kurath [2] and Hague and Maripuu [3] are compared in order to illustrate the use of (e,e), (π,π), and (γ,π) reactions in distinguishing nuclear structure theories which are almost equivalent in describing static properties in nuclei. Predictions for future (e,e) and (γ,π) experiments are also presented.

DOI: http://dx.doi.org/10.1103/PhysRevC.49.776

  • Received 1 October 1993
  • Published in the issue dated February 1994

© 1994 The American Physical Society

Authors & Affiliations

T. Sato, N. Odagawa, and H. Ohtsubo

  • Department of Physics, Osaka University, Toyonaka, Osaka 560, Japan

T.-S. H. Lee

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

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