Published June 1986
| Version v1
Journal article
A mixed symmetry or quasineutron pair interpretation of the Ksup(π)= 03+ level in 172Yb
Creators
- 1. Bylgarska Akademiya na Naukite, Sofia. Inst. za Yadrena Izsledvaniya i Yadrena Energetika
- 2. Sussex Univ., Brighton (UK). School of Mathematical and Physical Sciences
- 3. Institut Max von Laue - Paul Langevin, 38 - Grenoble (France)
Description
The half-life of the 1405 keV level in 172Yb has been measured as Tsub(1/2)=0.42(6) ns by the generalised centroid-shift method. The E2 transition rate to the 2+ 01+ level is extremely low with B(E2)=2.6 x 10-3Wu whereas the E0 transition matrix element is rho(E0)=0.014. A discussion is given of the alternative interpretations of the level either as a mixed symmetry state with the appropriate choice of parameters within IBM-2 or as having a structure dominated by a quasineutron pair excitation. (author)
Additional details
Publishing Information
- Journal Title
- J. Phys., G (London). Nucl. Phys.
- Journal Volume
- 12
- Journal Issue
- 6
- Series
- J. Phys., G (London). Nucl. Phys.
- Journal Page Range
- L151-L156
- ISSN
- 0305-4616
- CODEN
- JPHGB
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 17081394
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CAPTURE; EXCITED STATES; EXPERIMENTAL DATA; HALF-LIFE; NEUTRON REACTIONS; NUCLEAR STRUCTURE; THERMAL NEUTRONS; YTTERBIUM 171 TARGET; YTTERBIUM 172
- Descriptors DEC
- BARYON REACTIONS; BARYONS; DATA; ELEMENTARY PARTICLES; ENERGY LEVELS; EVEN-EVEN NUCLEI; FERMIONS; HADRON REACTIONS; HADRONS; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; NEUTRONS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; NUCLEONS; NUMERICAL DATA; RARE EARTH NUCLEI; STABLE ISOTOPES; TARGETS; YTTERBIUM ISOTOPES