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Shape coexistence in 153Ho
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DOI：10.1103/PhysRevC.94.024311.png)
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摘要
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The high-spin states in Ho-153 have been studied by the La-139(57)(Ne-20,6n) reaction at a projectile energy of 139 MeV at the Variable Energy Cyclotron Centre (VECC), Kolkata, India, utilizing an earlier campaign of the Indian National Gamma Array (INGA) setup. Data from gamma-gamma coincidence, directional correlation, and polarization measurements have been analyzed to assign and confirm the spins and parities of the levels. We have suggested a few additions and revisions of the reported level scheme of Ho-153. The RF-gamma time difference spectra have been useful to confirm the half-life of an isomer in this nucleus. From the comparison of experimental and theoretical results, it is found that there are definite indications of shape coexistence in this nucleus. The experimental and calculated lifetimes of several isomers have been compared to follow the coexistence and evolution of shape with increasing spin.
Keyword:
HIGH-SPIN STATES
CORIOLIS ATTENUATION
NUCLEI
ODD
COEFFICIENTS
ISOMERS
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3.4
论文数:
2.9W
被引数:
5.7W
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