Investigation of lifetimes in quadrupole bands of 142Gd
Creators
- Lieder, E.O.1, 2, 3
- Pasternak, A.A.1, 3
- Lieder, R.M.4, 3
- Efimov, A.D.1
- Mikhajlov, V.M.5
- Carlsson, B.G.6
- Ragnarsson, I.6
- Gast, W.3
- Venkova, Ts.7, 3
- Morek, T.8, 3
- Chmel, S.9
- De Angelis, G.10
- Napoli, D.R.10
- Gadea, A.10
- Bazzacco, D.11, 12
- Menegazzo, R.11, 12
- Lunardi, S.11, 12
- Urban, W.8
- Droste, C.8
- Rzaca-Urban, T.8
- Duchene, G.13
- 1. A.F. Ioffe Physical Technical Institute RAS, St. Petersburg (Russian Federation)
- 2. Themba LABS, P.O. Box 722, Somerset West (South Africa)
- 3. Institut fuer Kernphysik, Forschungszentrum Juelich, Juelich (Germany)
- 4. iThemba LABS, P.O. Box 722, Somerset West (South Africa)
- 5. St. Petersburg State University, Physical Institute, St. Petersburg (Russian Federation)
- 6. Lund University, Division of Mathematical Physics, LTH, Lund (Sweden)
- 7. Bulgarian Academy of Sciences, Institute of Nuclear Research and Nuclear Energy, Sofia (Bulgaria)
- 8. University of Warsaw, Institute of Experimental Physics, Warszawa (Poland)
- 9. University of Bonn, Institut fuer Strahlen- und Kernphysik, Bonn (Germany)
- 10. Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro (Italy)
- 11. Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Padova (Italy)
- 12. Dipartimento di Fisica dell'Universita, Padova (Italy)
- 13. Institut de Recherches Subatomique IReS, Strasbourg (France)
Description
For a level scheme investigation of 142Gd an experiment with the γ-spectrometer EUROBALLIII has been carried out and lifetimes have been measured with EUROBALL IV using the Doppler-shift attenuation method. The high-spin states have been populated in these experiments by means of the 99Ru(48Ti,2p3n) reaction at a beam energy of 240 MeV and the 114Sn(32S,2p2n) reaction at 160 MeV, respectively. Reduced E2 transition probabilities B(E2) were determined for 15 members of four quadrupole bands. For the interpretation of the positive-parity even-spin quadrupole bands, calculations in the cranked Nilsson-Strutinsky as well as interacting boson models have been performed. From the former calculations it was concluded that the high-spin states of the (+,0)1 band in 142Gd represent a triaxial nucleus rotating around the longest principal axis. (orig.)
Availability note (English)
Available from: http://dx.doi.org/10.1140/epja/i2007-10533-0Additional details
Identifiers
Publishing Information
- Journal Title
- European Physical Journal. A
- Journal Volume
- 35
- Journal Issue
- 2
- Journal Page Range
- p. 135-158
- ISSN
- 1434-6001
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 39063503
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DE-EXCITATION; E2-TRANSITIONS; ENERGY SPECTRA; EXPERIMENTAL DATA; GADOLINIUM 142; GAMMA CASCADES; GAMMA SPECTRA; HEAVY ION FUSION REACTIONS; HIGH SPIN STATES; M1-TRANSITIONS; MEV RANGE 100-1000; MULTIPOLARITY; NEUTRONS; PROTONS; ROTATIONAL STATES; RUTHENIUM 99 TARGET; STRENGTH FUNCTIONS; SULFUR 32 REACTIONS; TIN 114 TARGET; TITANIUM 48 REACTIONS
- Descriptors DEC
- BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DATA; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EXCITED STATES; FERMIONS; FUNCTIONS; GADOLINIUM ISOTOPES; HADRONS; HEAVY ION REACTIONS; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; MEV RANGE; MINUTES LIVING RADIOISOTOPES; MULTIPOLE TRANSITIONS; NUCLEAR CASCADES; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUCLEOSYNTHESIS; NUMERICAL DATA; RADIOISOTOPES; RARE EARTH NUCLEI; SPECTRA; SYNTHESIS; TARGETS