Published February 1991 | Version v1
Journal article

Rotational and single-particle structures in 83Zr

  • 1. Goettingen Univ. (Germany, F.R.). 2. Physikalisches Inst.
  • 2. Science and Engineering Research Council, Daresbury (UK). Daresbury Lab.
  • 3. Manchester Univ. (UK). Schuster Lab.
  • 4. Chalmers Univ. of Tech., Goeteborg (Sweden). Inst. of Physics
  • 5. Isfahan Univ. (Iran). Dept. of Physics

Description

The band structure of 83Zr has been investigated using the Daresbury recoil separator and TESSA array with 20 Compton suppressed Ge detectors and the reaction 28Si(58Ni, 2pn) at 195 MeV. DCO ratios have been used to make many new spin assignments. The three known rotational bands have been extended up to the onset of the five quasiparticle bands. On the basis of the 21/2+, 23/2+ and 25/2+ yrast and yrare states, a (3 qp) structure similar to those found in the isotones 79Kr and 81Sr has been identified. Additional bands have been observed for the first time, one of which appears to be non-collective. Strong mixing between the various negative parity bands is evident. A multiplet of states feeding the three quasi-particle region of the negative parity yrast band has been found. The data is interpreted in the framework of the cranked shell model. (orig.)

Additional details

Publishing Information

Journal Title
Zeitschrift fuer Physik. A, Hadrons and Nuclei
Journal Volume
338
Journal Issue
2
Series
Z. Phys., A Hadrons Nuclei.
Journal Page Range
139-148

Optional Information

Contract/Grant/Project number
Contract BMFT 06GOE141