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Phys. Rev. 108, 1300–1304 (1957)

Center-of-Gravity Theorem in Nuclear Spectroscopy

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R. D. Lawson* and J. L. Uretsky
Physics Department and Radiation Laboratory, University of California, Berkeley, California

Received 5 August 1957; published in the issue dated December 1957

The j-j coupling shell model implies the existence of certain geometrical relations among the spectra of neighboring nuclei. We have considered one such relationship between states of a nucleus that is one proton or neutron away from a closed shell with states of the corresponding closed-shell nucleus. Use of this relationship has enabled us to predict excited-state spins for several nuclei, most of which are in the vicinity of mass number 60. In two cases we predict the existence of states that have not been observed.

© 1957 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRev.108.1300
DOI:
10.1103/PhysRev.108.1300
PACS:

*Now at the Enrico Fermi Institute for Nuclear Studies, University of Chicago, Chicago, Illinois.