Published December 24, 1984 | Version v1
Journal article

Band crossings at low rotational frequency in 166Yb

  • 1. Colorado Univ., Boulder (USA). Nuclear Physics Lab.
  • 2. Niels Bohr Inst., Copenhagen (Denmark)

Description

The 166Er(3He, 3nγ) and 164Er(α, 2nγ) reactions were used to populate rotational side-bands in the N = 96 nucleus 166Yb. The aligned v(isub(13/2))2 S-band was observed from Isup(π) = 8+ to 12+, while the β- and γ-vibrational bands were observed from the bandheads to Isup(π) = 10+ and 12+, respectively. Negative-parity bands with Ksup(π) = 0-, (2-) and 5- were also observed. Band crossings and interaction effects are seen in both the positive- and negative-parity excitations below about (h/2π)ω = 0.25 MeV, the frequency at which the first yrast backbend occurs. (orig.)

Additional details

Publishing Information

Journal Title
Nucl. Phys., A
Journal Volume
431
Journal Issue
3
Series
CODEN: NUPAB.;Nucl. Phys., A.
Journal Page Range
473-485
ISSN
0375-9474