Band-like structures in97Ru
- 1 January 1980
- journal article
- Published by IOP Publishing in Journal of Physics G: Nuclear Physics
- Vol. 6 (1) , 103-115
- https://doi.org/10.1088/0305-4616/6/1/016
Abstract
The 88Sr(12C, 3n gamma ) reaction is used to populate high-spin states in the nucleus 97Ru. Gamma-ray excitation functions, angular distribution and recoil-distance measurements are used to determine branching ratios, multipolarities and lifetimes of the electromagnetic decays of these states. The lifetimes of the states at 2739.4, 2545.7, 1845.9, 1199.3, 879.1 and 421.6 keV have been determined for the first time as tau =12500+or-1300, <5, 21+or-3, 5+or-1, approximately=5 and 50+or-3 ps respectively. Some level sequences with Delta I=2 (band-like structures) are observed with relatively large 'intraband' B(E2) values as well as smaller B(E2) transition rates and hindered M1 transitions between 'bands'. The results are discussed in terms of current nuclear models.Keywords
This publication has 11 references indexed in Scilit:
- Collective excitations in the 123, 125I nucleiNuclear Physics A, 1977
- Ground-state rotational band in 181TaNuclear Physics A, 1976
- The feeding times and lifetimes of high-spin levels in ytterbium doubly even isotopesNuclear Physics A, 1976
- Gamma-ray transition probabilities in deformed nuclei (150 < A ≤ 190)Atomic Data and Nuclear Data Tables, 1975
- Rotational description of some ODD-A nuclei in the MASS-100 regionNuclear Physics A, 1975
- Coulomb excitation of levels inMo95andMo97Physical Review C, 1975
- Nuclear structure studies of 97Ru from the decay of 97g, mRhNuclear Physics A, 1974
- Interplay of valence-shell clusters and the vibrational field in94Mo and95MoThe European Physical Journal A, 1974
- In-beam gamma-ray spectroscopy of odd-neutron Mo and Ru isotopesNuclear Physics A, 1971
- Internal conversion tables part I: K-, L-, M-shell conversion coefficients for Z=30 to Z=103Nuclear Data Sheets. Section A, 1968