https://doi.org/10.1007/s10050-000-4500-3
Short note
High-spin states of rotational bands built upon νi13/2 in 166Lu
1
Department of Physics, Chung-Ang University, Seoul, 156-756, Republic of Korea
2
Department of Physics, Seoul National University, Seoul, 151-742, Republic of Korea
3
Department of Physics, Hoseo University, Chung-Nam, 337-795, Republic of Korea
4
Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki, 305, Japan
Received:
1
December
1999
Revised:
31
January
2000
Published online: 11 September 2013
High-Spin states of odd-odd 166Lu were populated using the 139La(30Si,3nγ)166Lu at a beam energy of 120 MeV. Twelve new γ-rays were placed on top of the previously known two rotational bands built upon πg 7/2⊗νi 13/2 and πh 11/2⊗νi 13/2. Extending high-spin states up to 21+ and 25− for each band, we have observed the onset of band crossing near ħω c ≈ 0.35 MeV. The band crossing frequency of the yrast πh 11/2⊗νi 13/2 band is consistent with the neutron BC band crossing observed in lighter odd-odd Lu isotopes.
PACS: 21.10.Re Collective levels – / 23.20.En Angular Distribution and correlation measurements – / 23.20.Lv Gamma transitions and level energy – / 27.70.+q 150 ≤ A ≤ 189 –
© Società Italiana di Fisica and Springer-Verlag, 2000
