Center-of-Gravity Theorem in Nuclear Spectroscopy

Phys. Rev. 108, 1300 – Published 1 December 1957
R. D. Lawson and J. L. Uretsky


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.


  • Received 5 August 1957
  • Published in the issue dated December 1957

© 1957 The American Physical Society

Authors & Affiliations

R. D. Lawson* and J. L. Uretsky

  • Physics Department and Radiation Laboratory, University of California, Berkeley, California

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

References (Subscription Required)

Authorization Required




Log In



Article Lookup
Paste a citation or DOI

Enter a citation
  1. Enter a citation to look up or terms to search.

    Ex: "PRL 112 068103", "Phys. Rev. Lett. 112, 068103", "10.1103/PhysRevLett.112.068103"