Elsevier

Nuclear Physics A

Volume 134, Issue 1, 1 September 1969, Pages 1-59
Nuclear Physics A

Neutron pairing states in doubly even nuclei

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Abstract

Neutron J = 0 states in even-N nuclei are calculated with a pairing force, using the boson expansion method. All regions of isotopes which are close to a fairly good shell-closure are covered, and a comparison is made between calculated and experimental two-nucleon transfer cross sections. In general we find a remarkably good agreement, even for the ground state mass systematics, suggesting that for the isotopes under consideration the simple pairing intersection is the dominant producer of ground state correlations. A lack of agreement with experiments in certain regions is proposed to be connected with couplings to definite other degrees of freedom under the influence of predominantly particle-hole interactions.

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    On leave from The Niels Bohr Institute, University of Copenhagen, Denmark.

    ††

    Work performance under auspices of the U.S. Atomic Energy Commision.

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