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[ital E]2 and [ital E]3 transitions from quadrupole-octupole coupled states in [sup 144]Nd

Journal Article · · Physical Review Letters; (United States)
; ; ; ; ;  [1]
  1. Department of Physics, Tennessee Technological University, Cookeville, Tennessee 38505 (United States) Institut Laue-Langevin, Boite Postal 156, 38042 Grenoble Cedex 9 (France) Institut Laue-Langevin, Boite Postal 156, 38042 Grenoble Cedex 9 (France) University of Fribourg, CH-1700, Fribourg (Switzerland) II. Physikalisches Institut, Universitaet Goettingen, D-37073 Goettingen (Germany)
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Lifetime measurements of the 3[sub 1][sup [minus]], 5[sub 1][sup [minus]], and 1[sub 1][sup [minus]] states in [sup 144]Nd show that the absolute [ital E]2 and [ital E]3 transition rates from the 5[sub 1][sup [minus]] and 1[sub 1][sup [minus]] states are consistent with their structure being formed by the coupling of the lowest quadrupole (2[sub 1][sup +]) and octupole (3[sub 1][sup [minus]]) excitations. A level at 2205 keV has been identified as having [ital J][sup [pi]]=4[sup [minus]] and may be another member of this quadrupole-octupole coupled quintuplet. The energy spacing of the quintuplet can be explained by anharmonicities in the quadrupole-octupole interaction and the influence of the [nu][sup 2](2[ital f][sub 7/2],1[ital i][sub 13/2]) configuration.

DOE Contract Number:
FG05-93ER40809
OSTI ID:
7253077
Journal Information:
Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 73:3; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663120 -- Nuclear Structure Models & Methods-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
COUPLING
E2-TRANSITIONS
E3-TRANSITIONS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIFETIME
MULTIPOLE TRANSITIONS
MULTIPOLES
NEODYMIUM 144
NEODYMIUM ISOTOPES
NUCLEI
OCTUPOLES
QUADRUPOLES
RADIOISOTOPES
RARE EARTH NUCLEI
YEARS LIVING RADIOISOTOPES