Elsevier

Physics Letters B

Volume 26, Issue 2, 25 December 1967, Pages 63-68
Physics Letters B

Higher order core polarization processes and effective interactions in nuclei

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Abstract

In the contributions to the effective nucleon-nucleon interaction coming from core polarization involving positive parity excitations, it is found adequate to employ lowest-order perturbation theory (one “bubble”). This is checked by explicitly constructing the core polarization phonons and coupling them with the two particles. When the exchange of negative parity phonons is involved, it is important to include also the higher order bubble diagrams. Applications have been made for nuclei in the 0p, 0d and 1s shell.

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This work was supported by the U.S. Atomic Energy Commission and the Higgins Scientific Trust Fund. This work made use of the Princeton Computer Facilities supported in part by the National Science Foundation Grant NSF GP-579.

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