Forking and Unusual Decay Out of Superdeformed Bands in 83Zr

Forskningsoutput: TidskriftsbidragLetter

Abstract

Two superdeformed (SD) bands extending over eight to eleven transitions have been identified in Zr-83, The quadrupole moment of the more intense band was determined by the Residual Doppler Shift Method and is consistent with a quadrupole deformation of beta(2) approximate to 0.5. The large quadrupole moment and population intensity of the yrast SD band (approximate to 5%) in Zr isotopes relative to their isotones in Sr and Y nuclei suggest the presence of a large SD shell gap at proton number Z = 40, At the decay-out points, the Routhians of the SD bands reapproach that of the positive parity normally-deformed states which may be the reason why both of these bands feed mainly (approximate to 85%) into the positive-parity yrast band.

Detaljer

Författare
  • Dirk Rudolph
  • C. Baktash
  • H. Q. Jin
  • C. H. Yu
  • I. Birriel
  • M. Devlin
  • D. R. LaFosse
  • I. Y. Lee
  • F. Lerma
  • A. O. Macchiavelli
  • J. X. Saladin
  • D. G. Sarantites
  • G. Sylvan
  • S. L. Tabor
  • D. F. Winchell
  • V. Q. Wood
Externa organisationer
  • External Organization - Unknown
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
Originalspråkengelska
Sidor (från-till)463-469
TidskriftPhysics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volym389
Utgåva nummer3
StatusPublished - 1996
PublikationskategoriForskning
Peer review utfördJa