Published March 11, 1985
| Version v1
Journal article
Quasivibrational bands at high spins in 158Yb
Creators
- 1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Description
High-spin states in the transitional nucleus 158Yb were populated via several (HI,4n) reactions. Two yrast bands were established up to I/sup π/ = (40+) and (31-). In contrast to the negative-parity band up to I = 31 and the positive-parity states up to I = 24 which show collective rotational patterns, states with I/sup π/ = 26+--36+ exhibit a nearly vibrational excitation mode. Such a quasivibrational pattern suggests a gradual transition toward oblate shapes and is the first evidence for a ''band termination'' in a heavy nucleus
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 54
- Journal Issue
- 10
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 978-981
- ISSN
- 0031-9007
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 16076668
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- COINCIDENCE SPECTROMETRY; GAMMA RADIATION; HIGH SPIN STATES; MEV RANGE 100-1000; MOLYBDENUM 98 TARGET; NEON 20 REACTIONS; NICKEL 64 REACTIONS; OXYGEN 18 REACTIONS; PARITY; ROTATIONAL STATES; SPIN; VIBRATIONAL STATES; YRAST STATES; YTTERBIUM 158
- Descriptors DEC
- ANGULAR MOMENTUM; COINCIDENCE METHODS; COUNTING TECHNIQUES; ELECTROMAGNETIC RADIATION; ENERGY LEVELS; ENERGY RANGE; EVEN-EVEN NUCLEI; EXCITED STATES; HEAVY ION REACTIONS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; MEV RANGE; NUCLEAR REACTIONS; NUCLEI; PARTICLE PROPERTIES; RADIATIONS; RARE EARTH NUCLEI; TARGETS; YTTERBIUM ISOTOPES