Octupole Deformation Bands of πh ll/2 in Neutron-Rich 145,147La Nuclei
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ZHU Sheng-jiang,
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WANG Mu-ge,
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J. H. Hamilton,
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A. V. Ramayya,
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B. R. S. Babu,
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W. C. Ma,
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LONG Gui-lu,
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ZHU Ling-yan,
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LI Ming,
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A. Sakhaee,
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GAN Cui-yun
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Abstract
Octupole deformation bands built on πh ll/2 orbital in neutron-rich odd-Z 145,147La nuclei have been investigated by measuring the prompt γ-rays emitted from the 252Cf source. The alternating parity band structures and strong E1 transitions observed between negative- and positive-parity bands in both nuclei indicate the octupole deformation enhanced by the h ll/2 single proton coupling. According to observed energy displacements the octupole deformation becomes stable at the intermediate spin states.
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ZHU Sheng-jiang, WANG Mu-ge, J. H. Hamilton, A. V. Ramayya, B. R. S. Babu, W. C. Ma, LONG Gui-lu, ZHU Ling-yan, LI Ming, A. Sakhaee, GAN Cui-yun. Octupole Deformation Bands of πh ll/2 in Neutron-Rich 145,147La Nuclei[J]. Chin. Phys. Lett., 1999, 16(3): 169-171.
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ZHU Sheng-jiang, WANG Mu-ge, J. H. Hamilton, A. V. Ramayya, B. R. S. Babu, W. C. Ma, LONG Gui-lu, ZHU Ling-yan, LI Ming, A. Sakhaee, GAN Cui-yun. Octupole Deformation Bands of πh ll/2 in Neutron-Rich 145,147La Nuclei[J]. Chin. Phys. Lett., 1999, 16(3): 169-171.
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ZHU Sheng-jiang, WANG Mu-ge, J. H. Hamilton, A. V. Ramayya, B. R. S. Babu, W. C. Ma, LONG Gui-lu, ZHU Ling-yan, LI Ming, A. Sakhaee, GAN Cui-yun. Octupole Deformation Bands of πh ll/2 in Neutron-Rich 145,147La Nuclei[J]. Chin. Phys. Lett., 1999, 16(3): 169-171.
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ZHU Sheng-jiang, WANG Mu-ge, J. H. Hamilton, A. V. Ramayya, B. R. S. Babu, W. C. Ma, LONG Gui-lu, ZHU Ling-yan, LI Ming, A. Sakhaee, GAN Cui-yun. Octupole Deformation Bands of πh ll/2 in Neutron-Rich 145,147La Nuclei[J]. Chin. Phys. Lett., 1999, 16(3): 169-171.
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