Signature dependence of 1/2+ bands in rare-earth nuclei: Rotation-alignment of g7/2 protons |
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| Authors: | C R Praharaj A K Rath |
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| Institution: | (1) Institute of Physics, 751 005 Bhubaneswar, India;(2) Present address: SERC Daresbury Laboratory, WA4 4AD Daresbury, Warrington, UK |
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| Abstract: | The origin of the signature splitting of theK=1/2+ bands in odd Z rare-earth nuclei Ho, Tm and Lu, unexplained in previous models, is studied by angular momentum projection
from deformed Hartree-Fock configurations. Energy spectra,E2 matrix elements and the rotation-aligned angular momenta of nucleons in i1 3/2, h1 1/2 and g7/2 orbits are calculated. Staggering in the rotation-alignment of protons in the g7/2 orbit causes signature dependent effects in the 1/2+ bands. |
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| Keywords: | Nuclear structure high spin states rotational bands signature splitting |
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