Decays of 2.45-h $sup 178$Ta/sup m/ and 23.8-min $sup 178$Lu/sup m/ to the K/sup $pi$/ = 8$sup -$ levels in $sup 178$Hf
Journal Article
·
· Phys. Rev., C, v. 12, no. 5, pp. 1632-1637
OSTI ID:4142040
The decays of the high-spin isomers of $sup 178$Ta (2.45 h) and $sup 178$Lu (23.8 min) to the two strongly admixed K/sup $pi$/ = 8$sup -$ states in $sup 178$Hf were reinvestigated. The main features of the previously reported decay schemes are confirmed and several long-standing ambiguities are resolved. The results of this investigation indicate that the 1147-keV level is largely the two-neutron state and the 1479-keV level is largely the two-proton state in $sup 178$Hf. They are found to be 34% admixed with one another. This mixing value is in good agreement with the value deduced from the M1/E2 cascade ratios of the 1147-keV band and from the comparison of the E1 ($nu$ = 7) hindrance factors of these two states in this mass region. The band-mixing matrix element for these two states was found to be in agreement with the recent theory which introduces the residual neutron-proton interaction to account for the mixing. The spin- parity of $sup 178$Lu/sup m/ (23.8 min) was deduced to be K/sup $pi$/ = 9$sup -$ with a possible Nilsson configuration of 9/2$sup -$ [514] /subp/, 9/2$sup +$ [624] /subn/. (AIP)
- Research Organization:
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
- NSA Number:
- NSA-33-010877
- OSTI ID:
- 4142040
- Journal Information:
- Phys. Rev., C, v. 12, no. 5, pp. 1632-1637, Journal Name: Phys. Rev., C, v. 12, no. 5, pp. 1632-1637; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nuclear structure of [sup 178]Lu
Spin dependence of K mixing, strong configuration mixing, and electromagnetic properties of {sup 178}Hf
Spin dependence of k-mixing, strong configuration mixing and electromagnetic properties of {sup 178}Hf.
Journal Article
·
Thu Dec 31 23:00:00 EST 1992
· Physical Review, C (Nuclear Physics); (United States)
·
OSTI ID:6898853
Spin dependence of K mixing, strong configuration mixing, and electromagnetic properties of {sup 178}Hf
Journal Article
·
Thu Mar 15 00:00:00 EDT 2007
· Physical Review. C, Nuclear Physics
·
OSTI ID:20995121
Spin dependence of k-mixing, strong configuration mixing and electromagnetic properties of {sup 178}Hf.
Journal Article
·
Sun Dec 31 23:00:00 EST 2006
· Phys. Rev. C
·
OSTI ID:940692
Related Subjects
643003*
BETA-MINUS DECAY-- BRANCHING RATIO-- FT VALUE-- GAMMA SPECTRA-- ISOMERIC NUCLEI-- LUTETIUM 178-- Q- VALUE
BRANCHING RATIO-- ELECTRON CAPTURE DECAY-- FT VALUE-- GAMMA SPECTRA-- ISOMERIC NUCLEI-- Q-VALUE-- TANTALUM 178
ENERGY-LEVEL TRANSITIONS-- GAMMA CASCADES-- HAFNIUM 178-- HIGH SPIN STATES-- INTERNAL CONVERSION-- ISOMERIC NUCLEI-- MIXING RATIO-- NUCLEAR STRUCTURE-- PARITY-- ROTATIONAL STATES-- SPIN
N68821 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
150 <= A <= 189--Radioactive Decay
N68831* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
150 <= A <= 189--Energy Levels & Transitions
BETA-MINUS DECAY-- BRANCHING RATIO-- FT VALUE-- GAMMA SPECTRA-- ISOMERIC NUCLEI-- LUTETIUM 178-- Q- VALUE
BRANCHING RATIO-- ELECTRON CAPTURE DECAY-- FT VALUE-- GAMMA SPECTRA-- ISOMERIC NUCLEI-- Q-VALUE-- TANTALUM 178
ENERGY-LEVEL TRANSITIONS-- GAMMA CASCADES-- HAFNIUM 178-- HIGH SPIN STATES-- INTERNAL CONVERSION-- ISOMERIC NUCLEI-- MIXING RATIO-- NUCLEAR STRUCTURE-- PARITY-- ROTATIONAL STATES-- SPIN
N68821 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
150 <= A <= 189--Radioactive Decay
N68831* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
150 <= A <= 189--Energy Levels & Transitions