Band Structure in 79Y and the Question of T=0 Pairing

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Excited states 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 set up 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.


  • 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
Externa organisationer
  • External Organization - Unknown

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
Titel på värdpublikationAIP Conference Proceedings
RedaktörerC. Baktash
FörlagAmerican Institute of Physics
StatusPublished - 1999
Peer review utfördJa
EvenemangNuclear Structure 98, 1998 - Gatlinburg, Tennessee, Gatlinburg, Tennessee, USA
Varaktighet: 1998 aug 101998 aug 15


ISSN (tryckt)0094-243X
ISSN (elektroniskt)1551-7616


KonferensNuclear Structure 98, 1998
OrtGatlinburg, Tennessee