ISOMERIC STATES OF THE SPHERICAL NUCLEI OF Eu$sup 147$, Eu$sup 149$ AND Eu$sup 15$$sup 1$

Journal Article · Wed Mar 01 04:00:00 EST 1961 · Nuclear Phys.

DOI:https://doi.org/10.1016/0029-5582(61)90274-7· OSTI ID:4029759

Berlovich, E E ^[1]; Klementyev, V N; Krasnov, L V; Nikitin, M R; Yursik, I

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1. Ye.

Half-lifes of the h 11/2 levels of Eu/sup 147/, Eu/sup 149/, and Eu< s1>s/sup 51/ are measured and the following respective values obtained: T /sub 1/ 2/ = (7.1 plus or minus 0.4) x 10/sup -7/ sec, T/sub 1/2/ = (2.48 PP 0.05) x 10/ sup -6/ sec, and T /sub 1/2/ = (5.8 plus or minus 0.3) x 10/sup -5/ sec. The M2-type transition s from the h /sub 11///sub 2/ levels prove retarded, the degree of retardation increasing with the number of neutrons from 84 to 88. The E3-type transition rates in the nuclei of Eu/sup 147/ and Eu/sup 14/ /sup 9/ prove close to one-particle evaluations. The results of the present investigation, together with the data, contradict the analysis performed by Nilsson and Gottfried on the motion of an odd proton of Eu/sup 151/ in a deformed potential. (auth)

• Research Organization: Physical-Technical Inst., Leningrad
• NSA Number: NSA-15-016443
• OSTI ID: 4029759
• Journal Information: Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 23
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ATOMIC MODELS
BORN APPROXIMATION
CONFIGURATION
ELECTRIC FIELDS
ENERGY LEVELS
EUROPIUM 147
EUROPIUM 149
EUROPIUM 151
FERMIONS
HALF- LIFE
ISOMERS
MAGNETIC FIELDS
MAGNETIC MOMENTS
MEASURED VALUES
MOLECULES
MOTION
MULTIPOLARITY
MULTIPOLE RADIATION
NUCLEAR MODELS
NUCLEAR THEORY
NUCLEI
NUCLEONS
PERTURBATION THEORY
PHYSICS
PROTONS
QUADRUPOLES
QUANTUM MECHANICS
RADIATIONS
RELATIVITY THEORY
SCATTERING
SPHERES
TRANSIENTS