Published August 1999 | Version v1
Journal article Metadata-only

Rotational bands in odd-odd 180Ir

Creators

  • 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou (China)
  • 2. Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan)
  • 3. Chiba University, Inage-ku, Chiba 263-8512 (Japan)
  • 4. Chiba Institute of Technology, Narashino, Chiba 275-0023 (Japan)
  • 5. Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki305-0006 (Japan)

Description

High spin states in 180Ir have been studied via 154 Sm(31P,5nγ)180Ir reaction through excitation functions, X-γ and γ-γ-t coincidence measurements. Three rotational bands are identified including a doubly decoupled band, a semi-decoupled one, and a coupled structure up to (26+). The quasiparticle configurations associated with these bands are suggested according to in-band B(M1)/B(E2) ratios and band structures of neighboring odd-odd nuclei. Signature inversion in the semidecoupled band is discussed relying on systematics. (orig.)

Additional details

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
5
Journal Issue
4
Journal Page Range
p. 345-349
ISSN
1434-6001

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
30043750
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
DE-EXCITATION; E2-TRANSITIONS; ENERGY SPECTRA; EXPERIMENTAL DATA; GAMMA CASCADES; GAMMA SPECTRA; HEAVY ION FUSION REACTIONS; HIGH SPIN STATES; IRIDIUM 180; M1-TRANSITIONS; MEV RANGE 100-1000; NEUTRONS; PARITY; PHOSPHORUS 31 REACTIONS; ROTATIONAL STATES; SAMARIUM 154 TARGET; SPIN; STRENGTH FUNCTIONS
Descriptors DEC
ANGULAR MOMENTUM; BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DATA; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EXCITED STATES; FERMIONS; FUNCTIONS; HADRONS; HEAVY ION REACTIONS; INFORMATION; INTERMEDIATE MASS NUCLEI; IRIDIUM ISOTOPES; ISOTOPES; MEV RANGE; MINUTES LIVING RADIOISOTOPES; MULTIPOLE TRANSITIONS; NUCLEAR CASCADES; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUCLEOSYNTHESIS; NUMERICAL DATA; ODD-ODD NUCLEI; PARTICLE PROPERTIES; RADIOISOTOPES; SPECTRA; SYNTHESIS; TARGETS

Optional Information

Notes
With 4 figs., 16 refs.