Published August 26, 1991 | Version v1
Journal article Metadata-only

Observation of parity doublets in 221Ra

Creators

  • 1. Muenchen Univ., Garching (Germany). Sektion Physik

Description

High-spin states in 221Ra were studied by the 210Pb(14C, 3n) reaction at beam energies between 61 and 75 MeV. Excitation functions, multiplicity distributions and γγ-coincidences were measured. The level scheme of 221Ra is found to be composed of two bands of alternating parity, characterized by the simplex numbers s = +i and s = -i, which could be followed up to Iπ = 27+/2 and Iπ = 27-/2, respectively. The presence of parity doublets as well as enhanced E1 transitions suggests a reflection-asymmetric shape for this nucleus. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics, A
Journal Volume
531
Journal Issue
1
Series
Nucl. Phys., A.
Journal Page Range
164-176
ISSN
0375-9474
CODEN
NUPAB

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
23003389
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
ANGULAR CORRELATION; ASYMMETRY; CARBON 14 REACTIONS; DE-EXCITATION; ENERGY SPECTRA; EXCITATION FUNCTIONS; EXPERIMENTAL DATA; E1-TRANSITIONS; E2-TRANSITIONS; GAMMA CASCADES; GAMMA RADIATION; GAMMA SPECTRA; HEAVY ION FUSION REACTIONS; HIGH SPIN STATES; LEAD 210 TARGET; MEV RANGE 10-100; MULTIPLICITY; MULTIPOLARITY; M1-TRANSITIONS; NEUTRONS; NUCLEAR DEFORMATION; NUCLEAR STRUCTURE; P INVARIANCE; PARITY; PHOTONS; RADIUM 221; ROTATIONAL STATES; SPIN; SYMMETRY BREAKING
Descriptors DEC
ALPHA DECAY RADIOISOTOPES; ANGULAR MOMENTUM; BARYONS; BOSONS; CORRELATIONS; DATA; DEFORMATION; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-ODD NUCLEI; EXCITED STATES; FERMIONS; HADRONS; HEAVY ION REACTIONS; HEAVY NUCLEI; INFORMATION; INVARIANCE PRINCIPLES; IONIZING RADIATIONS; ISOTOPES; MASSLESS PARTICLES; MEV RANGE; MULTIPOLE TRANSITIONS; NUCLEAR CASCADES; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUCLEOSYNTHESIS; NUMERICAL DATA; PARTICLE PROPERTIES; RADIATIONS; RADIOISOTOPES; RADIUM ISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTRA; SYNTHESIS; TARGETS