Signature inversion and electromagnetic properties of aligned bands in 166Tm
Creators
- 1. Physics Dept., Univ. Fribourg (Switzerland)
- 2. Dept. of Mathematical Physics, Lund Inst. of Technology (Sweden)
Description
Excited states of 166Tm were investigated by means of the 165Ho(α, 3n) reaction. Two rotational bands were identified up to tentative spins of 20- and 18+. Their electromagnetic properties were studied and interpreted in the framework of the cranking shell model (CSM) and of the particle-rotor model (PRM). Both the revised Doenau and Frauendorf formula (CSM) and the PRM calculations reproduce the experimental results rather well for spins between 10 and 14, whereas they fail at low and high angular momenta. The two models predict different I-dependences for the B(M1) values in the angular momentum region of I<jp+jn. The existence and interpretation of the signature inversion of the yrast band is discussed using three different models. The results show that the occurrence of signature inversion does not necessarily mean the presence of triaxial nuclear shape. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics. A
- Journal Volume
- 543
- Journal Issue
- 3
- Journal Page Range
- p. 495-516.
- ISSN
- 0375-9474
- CODEN
- NUPABL
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 24003689
- 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
- ALPHA REACTIONS; ANGULAR DISTRIBUTION; BREAKUP REACTIONS; CHARGE-EXCHANGE REACTIONS; CRANKING MODEL; DE-EXCITATION; ENERGY SPECTRA; EXPERIMENTAL DATA; E2-TRANSITIONS; GAMMA CASCADES; GAMMA RADIATION; GAMMA SPECTRA; HALF-LIFE; HIGH SPIN STATES; HOLMIUM 165 TARGET; LIMITING VALUES; MEV RANGE 10-100; M1-TRANSITIONS; NEUTRONS; NUCLEAR ALIGNMENT; NUCLEAR DEFORMATION; NUCLEAR STRUCTURE; ONE-NUCLEON TRANSFER REACTIONS; PARITY; PARTICLE-CORE COUPLING MODEL; PHOTONS; ROTATIONAL STATES; SHELL MODELS; SPIN; STRENGTH FUNCTIONS; THULIUM 166; YRAST STATES
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BOSONS; DATA; DEFORMATION; DIRECT REACTIONS; DISTRIBUTION; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EXCITED STATES; FERMIONS; FUNCTIONS; HADRONS; HOURS LIVING RADIOISOTOPES; INFORMATION; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; ISOTOPES; MASSLESS PARTICLES; MATHEMATICAL MODELS; MEV RANGE; MULTIPOLE TRANSITIONS; NUCLEAR CASCADES; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUMERICAL DATA; ODD-ODD NUCLEI; PARTICLE PROPERTIES; RADIATIONS; RADIOISOTOPES; RARE EARTH NUCLEI; SPECTRA; TARGETS; THULIUM ISOTOPES; TRANSFER REACTIONS