Medium-spin structure of {sup 145}Cs

Journal Article · Thu Jul 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.017301· OSTI ID:21389238

Rzaca-Urban, T ^[1]; Urban, W ^[1]; Pinston, J A; Simpson, G S ^[2]; Durell, J L; Smith, A G ^[3]; Ahmad, I ^[4]

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1. Faculty of Physics, University of Warsaw, ul. Hoza 69, PL-00681 Warsaw (Poland)
2. Laboratoire de Physique Subatomique et de Cosmologie, Universite Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex (France)
3. Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)
4. Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Excited states in {sup 145}Cs, populated following the spontaneous fission of {sup 248}Cm, were studied by means of prompt-gamma spectroscopy, using the EUROGAM2 multidetector array. A new level scheme of {sup 145}Cs was proposed. We identified a decoupled band corresponding to 1/2[550] proton configuration and interpreted the ground-state band as a mixed configuration of 1/2[440] and 3/2[422] proton orbitals. Quasiparticle-rotor calculations performed for {sup 145}Cs support such assignments. The electric dipole moment in {sup 145}Cs, D{sub 0}=0.013(4) efm, is smaller than in lighter Cs isotopes, which suggests that octupole correlations in Cs isotopes decrease at the neutron number N=90, similarly as observed in the {sup 146}Ba and {sup 147}La isotones.

• OSTI ID: 21389238
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 1; Other Information: DOI: 10.1103/PhysRevC.82.017301; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARIUM 146
CESIUM 145
CONFIGURATION
CORRELATIONS
CURIUM 248
ELECTRIC DIPOLE MOMENTS
EXCITED STATES
GAMMA SPECTROSCOPY
GROUND STATES
ISOTONIC NUCLEI
LANTHANUM 147
NEUTRONS
NUCLEAR STRUCTURE
PROTONS
SPIN
SPONTANEOUS FISSION
ACTINIDE NUCLEI
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
ANGULAR MOMENTUM
BARIUM ISOTOPES
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM ISOTOPES
CURIUM ISOTOPES
DECAY
DIPOLE MOMENTS
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
ENERGY LEVELS
EVEN-EVEN NUCLEI
FERMIONS
FISSION
HADRONS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
LANTHANUM ISOTOPES
MILLISECONDS LIVING RADIOISOTOPES
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
PARTICLE PROPERTIES
RADIOISOTOPES
RARE EARTH NUCLEI
SECONDS LIVING RADIOISOTOPES
SPECTROSCOPY
SPONTANEOUS FISSION RADIOISOTOPES
YEARS LIVING RADIOISOTOPES