Published January 24, 1994 | Version v1
Journal article Metadata-only

High-spin spectroscopy of the reflection-asymmetric nucleus 221Ac

Creators

  • 1. Centre de Recherches Nucleaires, IN2P3-Univ. Louis Pasteur, 67 Strasbourg (France)
  • 2. Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, CNRS-IN2P3, 91 Orsay (France)
  • 3. Sektion Physik, Univ. Muenchen, Garching (Germany)
  • 4. Inst. of Physics, Jagellonian Univ., Cracow (Poland)
  • 5. Inst. of Experimental Physics, Warsaw Univ. (Poland)

Description

The high-spin state structure of the nucleus 221Ac was investigated by means of the 209Bi(14C, 2n) reaction at 63 and 65 MeV. Measurements consisted of in-beam γγ coincidences using the Chateau de Cristal multidetector array and of e- γ coincidences. Two alternating parity bands could be established in 221Ac up to spin 35/2h. Almost all of the states may be regrouped into parity doublets and the origin of these doublets is discussed. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics. A
Journal Volume
567
Journal Issue
3
Journal Page Range
p. 685-700.
ISSN
0375-9474
CODEN
NUPABL

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
25041748
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ACTINIUM 221; ASYMMETRY; BISMUTH 209 TARGET; BRANCHING RATIO; CARBON 14 REACTIONS; DE-EXCITATION; DEFORMED NUCLEI; ELECTRIC DIPOLE MOMENTS; ENERGY SPECTRA; EXPERIMENTAL DATA; E1-TRANSITIONS; E2-TRANSITIONS; GAMMA CASCADES; GAMMA RADIATION; GAMMA SPECTRA; HEAVY ION FUSION REACTIONS; HIGH SPIN STATES; K CONVERSION; L CONVERSION; MEV RANGE 10-100; MOMENT OF INERTIA; MULTIPOLARITY; M1-TRANSITIONS; NEUTRONS; NUCLEAR ELECTRIC MOMENTS; P INVARIANCE; PARITY; PHOTONS; ROTATIONAL STATES; SPIN; STRENGTH FUNCTIONS; SYMMETRY BREAKING
Descriptors DEC
ACTINIDE NUCLEI; ACTINIUM ISOTOPES; ALPHA DECAY RADIOISOTOPES; ANGULAR MOMENTUM; BARYONS; BOSONS; CONVERSION; DATA; DECAY; DIPOLE MOMENTS; ELECTRIC MOMENTS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EXCITED STATES; FERMIONS; FUNCTIONS; HADRONS; HEAVY ION REACTIONS; HEAVY NUCLEI; INFORMATION; INTERNAL CONVERSION; INVARIANCE PRINCIPLES; IONIZING RADIATIONS; ISOTOPES; MASSLESS PARTICLES; MEV RANGE; MILLISEC LIVING RADIOISOTOPES; MULTIPOLE TRANSITIONS; NUCLEAR CASCADES; NUCLEAR DECAY; NUCLEAR PROPERTIES; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUCLEOSYNTHESIS; NUMERICAL DATA; ODD-EVEN NUCLEI; PARTICLE PROPERTIES; RADIATIONS; RADIOISOTOPES; SPECTRA; SYNTHESIS; TARGETS