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Byrne, A.P.; Dracoulis, G.D.; Schiffer, K.J.
Australian National Univ., Canberra (Australia). Research School of Physical Sciences1990
Australian National Univ., Canberra (Australia). Research School of Physical Sciences1990
AbstractAbstract
[en] A very high spin isomeric state with τm = 34(3)μs has been observed at an excitation energy of 8.5 MeV in 212Fr. The experimental evidence favours an E3 assignment, with a very large E3 transition strength, B(E3) = 100 (12) x 103 e2fm6, to one of the γ-rays de-exciting the isomer. The observed properties are in very good agreement with the characteristics of a 34+ state predicted by the multiparticle octupole vibration model. 10 refs., 1 tab., 3 figs
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Apr 1990; 14 p; Accepted for publication in Phys. Rev. C. (June 1990).
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Report
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CARBON 12 REACTIONS, COINCIDENCE METHODS, COUPLING, DE-EXCITATION, E3-TRANSITIONS, EXPERIMENTAL DATA, FRANCIUM 212, GAMMA RADIATION, HIGH SPIN STATES, ISOMERS, LIFETIME, MEV RANGE 10-100, MICROSEC LIVING RADIOISOTOPES, MULTIPLICITY, NEUTRONS, NUCLEAR MODELS, OCTUPOLES, THALLIUM 205 TARGET, VIBRATIONAL STATES
ALPHA DECAY RADIOISOTOPES, BARYONS, BETA DECAY RADIOISOTOPES, COUNTING TECHNIQUES, DATA, ELECTROMAGNETIC RADIATION, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, ENERGY LEVELS, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, EXCITED STATES, FERMIONS, FRANCIUM ISOTOPES, HADRONS, HEAVY ION REACTIONS, HEAVY NUCLEI, INFORMATION, IONIZING RADIATIONS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MATHEMATICAL MODELS, MEV RANGE, MINUTES LIVING RADIOISOTOPES, MULTIPOLE TRANSITIONS, MULTIPOLES, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, NUMERICAL DATA, ODD-ODD NUCLEI, RADIATIONS, RADIOISOTOPES, TARGETS
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