Band Structure in 79Y and the Question of T=O Pairing

Research output: Contribution to journalArticle

Abstract

Gamma rays in the N=Z + 1 nucleus Y-79 were identified using the reaction Si-28(Fe-54, p2n)Y-79 at a 200 MeV beam energy and an experimental setup consisting of an array of Ge detectors and the Recoil Mass Spectrometer at Oak Ridge National Laboratory. With the help of additional gamma-gamma coincidence data obtained with Gammasphere, these gamma rays were found to form a strongly coupled rotational band with rigid-rotor-like behavior. Results of conventional Nilsson-Strutinsky cranked shell model calculations, which predict a deformation of beta(2)similar to 0.4, are in excellent agreement with the properties of this band. Similar calculations for the neighboring N=Z and N=Z + 1 nuclei are also in good agreement with experimental data. This suggests that the presence of the putative T=0 neutron-proton pairing does not significantly affect such simple observables as the moments of inertia of these bands at low spins. [S0556-2813(98)50612-7].

Details

Authors
  • S. D. Paul
  • C. Baktash
  • W. Satula
  • C. J. Gross
  • I. Birriel
  • R. M. Clark
  • R. A. Cunningham
  • M. Devlin
  • P. Fallon
  • A. Galindo-Uribarri
  • T. Ginter
  • D. R. Lafosse
  • J. Kay
  • F. Lerma
  • I. Y. Lee
  • C. Leyland
  • A. O. Macchiavelli
  • B. D. MacDonald
  • S. J. Metcalfe
  • A. Piechaczek
  • D. C. Radford
  • W. Reviol
  • L. L. Riedinger
  • K. Rykaczewski
  • D. G. Sarantites
  • J. X. Saladin
  • D. Shapira
  • G. N. Sylvan
  • S. L. Tabor
  • K. S. Toth
  • W. Weintraub
  • D. F. Winchell
  • V. Q. Wood
  • R. Wyss
  • C. H. Yu
External organisations
  • External Organization - Unknown
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Pages (from-to)R3037-R3041
JournalPhysical Review C (Nuclear Physics)
Volume58
Issue number6
Publication statusPublished - 1998
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

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