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Phys. Rev. C 74, 027304 (2006) [4 pages]

Simple interpretation of proton-neutron interactions in rare earth nuclei

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Y. Oktem1,*, R. B. Cakirli1,2, R. F. Casten2,3, R. J. Casperson2, and D. S. Brenner4
1Department of Physics, Istanbul University, Turkey
2Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520, USA
3Institut für Kernphysik, Universität zu Köln, Köln, Germany
4Department of Chemistry, Clark University, Worcester, Massachusetts 01610, USA

Received 8 June 2006; published 25 August 2006

The rare earth nuclei from N=92 to N=108 display a very regular pattern of empirically extracted interactions of the last protons with the last neutrons. The simplicity of the empirical systematics suggests that a simple interpretation should be possible. We discuss calculations of these proton-neutron (p-n) interactions with a zero-range δ force.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.74.027304
DOI:
10.1103/PhysRevC.74.027304
PACS:
21.30.Fe, 21.10.Dr, 21.60.Ev, 27.60.+j

*Electronic address: sgyks@istanbul.edu.tr