High Spin Band Structure in 112Ru

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CHE Xing-Lai, ZHU Sheng-Jiang, CHEN Yong-Jing, DING Huai-Bo and LI Ming-Liang. High Spin Band Structure in 112Ru[J]. Chinese Physics C, 2006, 30(S2): 154-156.
CHE Xing-Lai, ZHU Sheng-Jiang, CHEN Yong-Jing, DING Huai-Bo and LI Ming-Liang. High Spin Band Structure in 112Ru[J]. Chinese Physics C, 2006, 30(S2): 154-156. shu
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Received: 2006-10-16
Revised: 1900-01-01
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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High Spin Band Structure in 112Ru

    Corresponding author: CHE Xing-Lai,
  • Department of Physics, Tsinghua University, Beijing 100084, China2 Department of Physics, Vanderbilt University, Nashville, Tennessee 37235, USA3 Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

Abstract: Through measuring high-fold prompt γ-ray coincidence events following the spontaneous fission of 252Cf with the Gammasphere detector array, new level scheme in the very neutron-rich 112Ru nucleus has been established.The ground-state band and the one-phonon γ-vibrational band have been confirmed and extended with spin up to 16h and 15h, respectively. The other two side bands, one proposed as two-phonon γ-vibrational band and another proposed as two-quasiparticle band, have been identified for the first time. From cranked shell model calculations, 112Ru nucleus may have triaxial deformation with parameters β2~0.27, γ~-29° and the band crossing in the yrast band is due to the alignment of two h11/2 neutrons. The characteristics for the quasiparticle band and γ-vibrational bands have also been discussed.

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