Published January 2001
| Version v1
Journal article
New excited superdeformed bands in heavy Pb nuclei: Clue for an octupole softness near the N=118 gap at large deformation
Creators
- 1. Lyon-1 Univ., 69 - Villeurbanne (France). Inst. de Physique Nucleaire
Description
We report the identification of six new superdeformed (SD) bands in 197,198Pb observed with the EUROBALL IV spectrometer. The results are interpreted in the framework of cranked Hartree-Fock calculations with approximate projection on the particle number by means of the Lipkin-Nogami method. A mixing between quasi-particle excitations and an octupole vibration is suggested in the two SD isotopes. We have estimated the ordering of the neutron valence orbitals and confirm indirectly a N=118 SD gap. (orig.)
Additional details
Publishing Information
- Journal Title
- European Physical Journal. A
- Journal Volume
- 10
- Journal Issue
- 1
- Journal Page Range
- p. 13-19
- ISSN
- 1434-6001
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 32017000
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DE-EXCITATION; ENERGY SPECTRA; EXPERIMENTAL DATA; GAMMA CASCADES; GAMMA SPECTRA; HEAVY ION FUSION REACTIONS; HIGH SPIN STATES; LEAD 197; LEAD 198; MEV RANGE 100-1000; MOMENT OF INERTIA; NEUTRONS; OXYGEN 18 REACTIONS; ROTATIONAL STATES; TUNGSTEN 186 TARGET; YRAST STATES
- Descriptors DEC
- BARYONS; BETA DECAY RADIOISOTOPES; DATA; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; EXCITED STATES; FERMIONS; HADRONS; HEAVY ION REACTIONS; HEAVY NUCLEI; HOURS LIVING RADIOISOTOPES; INFORMATION; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LEAD ISOTOPES; MEV RANGE; MINUTES LIVING RADIOISOTOPES; NUCLEAR CASCADES; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUCLEOSYNTHESIS; NUMERICAL DATA; RADIOISOTOPES; SPECTRA; SYNTHESIS; TARGETS