ISSN:
1434-601X
Keywords:
21.60.Cs
;
23.20.Ck
;
23.20.Lo
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The level structure of theN=81 nucleus149Er has been studied by γ-ray spectroscopy following the reaction92Mo+255 MeV60Ni. Yrast levels in149Er are established up to ~3.3 MeV, including 0.61 and 4.8 μs isomeric states. Most of the observed levels are interpreted as seniority-three states arising from the coupling of s1/2, d3/2 and h11/2 neutron holes with πh 11 2/n . Isomers identified in the reaction96Ru+255 MeV58Ni are tentatively assigned to151Yb. TheB (E2) values of high-spin isomers inZ=66−70,N=81−83 nuclei are surveyed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01289565
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