Physics Letters B (Dec 2020)

Spectroscopy of proton-rich 79Zr: Mirror energy differences in the highly-deformed fpg shell

  • R.D.O. Llewellyn,
  • M.A. Bentley,
  • R. Wadsworth,
  • J. Dobaczewski,
  • W. Satuła,
  • H. Iwasaki,
  • G. de Angelis,
  • J. Ash,
  • D. Bazin,
  • P.C. Bender,
  • B. Cederwall,
  • B.P. Crider,
  • M. Doncel,
  • R. Elder,
  • B. Elman,
  • A. Gade,
  • M. Grinder,
  • T. Haylett,
  • D.G. Jenkins,
  • I.Y. Lee,
  • B. Longfellow,
  • E. Lunderberg,
  • T. Mijatović,
  • S.A. Milne,
  • D. Rhodes,
  • D. Weisshaar

Journal volume & issue
Vol. 811
p. 135873

Abstract

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Energy differences between isobaric analogue states have been extracted for the A=79, 79Zr/79Y mirror pair following their population via nucleon-knockout reactions from intermediate-energy rare-isotope beams. These are the heaviest nuclei where such measurements have been made to date. The deduced mirror energy differences (MED) are compared with predictions from a new density-functional based approach, incorporating isospin-breaking effects of both Coulomb and nuclear charge-symmetry breaking and configuration mixing.