High-K three-quasiparticle rotational bands in {sup 171}Hf

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.55.508· OSTI ID:435285

Cullen, D M; Appelbe, D E; Reed, A T ^[1]; Baktash, C; Yu, C ^[2]

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1. Oliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 3BX (United Kingdom)
2. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6371 (United States)

High-spin states have been populated in {sup 171}Hf with the {sup 48}Ca+{sup 128}Te reaction at 200 MeV. A three-quasiparticle strongly coupled rotational band has been established in {sup 171}Hf which is built upon the known K{sup {pi}}=19/2{sup +}, 6.2 ns, isomeric state. In addition the strongly coupled band built upon the K{sup {pi}}=23/2{sup {minus}}, 18 ns, isomeric state in {sup 171}Hf has been extended to higher excitation energy. (g{sub K}{minus}g{sub R})/Q{sub 0} values, determined from the ({Delta}I=1)/({Delta}I=2) branching ratios, have been used in combination with the aligned angular momentum to confirm the configuration assignments for each band. Three new {gamma}-ray transitions have also been established in {sup 171}Hf which link the K{sup {pi}}=19/2{sup +}, 6.2 ns, isomeric bandhead state directly into the yrast states. The reduced hindrance factors for these decays are discussed. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 435285
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 1 Vol. 55; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR MOMENTUM
BRANCHING RATIO
CALCIUM 48 REACTIONS
ENERGY-LEVEL TRANSITIONS
HAFNIUM 171
HIGH SPIN STATES
ISOMERIC NUCLEI
QUASI PARTICLES
ROTATIONAL STATES
TELLURIUM 128 TARGET
YRAST STATES