Band Crossings and Shape Changes in the K<SUP>π</SUP>=5－/2 Band in <SUP>79</SUP>Kr

Pan Qiangyan; Luo Yixiao; De Poli; de Angelis

Chinese Physics C> 1998, Vol. 22> Issue(3) : 209-216

Band Crossings and Shape Changes in the K^π=5－/2 Band in ⁷⁹Kr

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000Laboratori Nazionali di Legnaro, INFN, 35020 Legnaro PD,Italy

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Abstract：
High-spin states in ⁷⁹Kr were studied via the fusion evaporation reaction ⁵⁵Mn(³⁰Si, apn) at 130MeV. Prompt γγγ-charged particle coincidences were made using the GASP array in conjunction with the ΔE-E Si(Au) charged particle ball. Nine new states were found, along with 10 new transitions in the K=5-/2 band. The favored (a=+1/2) and unfavored (a=－1/2) signature sequences were extended up to states of (37-/2)8992 keV and (59－/2)20132 keV, respectively. A cranked shell-model analysis has been made to discuss the experimental results.

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Pan Qiangyan, Luo Yixiao, De Poli and de Angelis. Band Crossings and Shape Changes in the K^π=5－/2 Band in ⁷⁹Kr[J]. Chinese Physics C, 1998, 22(3): 209-216.

Pan Qiangyan, Luo Yixiao, De Poli and de Angelis. Band Crossings and Shape Changes in the K^π=5－/2 Band in ⁷⁹Kr[J]. Chinese Physics C, 1998, 22(3): 209-216. shu

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Received: 1900-01-01
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

Band Crossings and Shape Changes in the K^π=5－/2 Band in ⁷⁹Kr

Corresponding author: Pan Qiangyan,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000Laboratori Nazionali di Legnaro, INFN, 35020 Legnaro PD,Italy

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1998-03-05

Abstract: High-spin states in ⁷⁹Kr were studied via the fusion evaporation reaction ⁵⁵Mn(³⁰Si, apn) at 130MeV. Prompt γγγ-charged particle coincidences were made using the GASP array in conjunction with the ΔE-E Si(Au) charged particle ball. Nine new states were found, along with 10 new transitions in the K=5-/2 band. The favored (a=+1/2) and unfavored (a=－1/2) signature sequences were extended up to states of (37-/2)8992 keV and (59－/2)20132 keV, respectively. A cranked shell-model analysis has been made to discuss the experimental results.