Prolate and oblate band structures in odd-odd sup 186,188 Au

Journal Article · Fri Jan 31 23:00:00 EST 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.613· OSTI ID:7205980

Janzen, V P; Liu, Z; Carpenter, M P; Courtney, L H; Jin, H; Larabee, A J; Riedinger, L L ^[1]; Johansson, J K; Popescu, D G; Waddington, J C ^[2]; Monaro, S; Pilotte, S ^[3]; Doenau, F ^[4]

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1. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States)
2. Tandem Accelerator Laboratory, McMaster University, Hamilton, L8S 4K1 (Canada)
3. Laboratoire de Physique Nucleaire, Universite de Montreal, Montreal, H3C 3J7 (Canada)
4. Joint Institute for Heavy Ion Research, Oak Ridge, Tennessee 37831 (United States)

High-spin states have been populated in odd-odd {sup 186,188}Au via the heavy-ion {sup 171,173}Yb({sup 19}F,4{ital n}) reactions at 93--94 MeV. Rotational bands built on 11{sup {minus}} oblate {nu}{ital i}{sub 13/2}{sup {minus}1}{direct product}{pi}{ital h}{sub 11/2}{sup {minus}1} structures have been observed in both nuclei, similar to those reported in {sup 190{minus}194}Au. Two new strongly coupled bands in {sup 186}Au are interpreted as prolate {pi}{ital h}{sub 9/2}{direct product}{nu}{ital i}{sub 13}2 and {pi}{ital i}{sub 13/2}{direct product}{nu}{ital i}{sub 13/2} configurations. Based on blocking arguments a band crossing in the latter structure is attributed to the alignment of {ital h}{sub 9/2} protons. Measured {ital B}({ital M}1;{ital I}{r arrow}{ital I}{minus}1)/{ital B}({ital E}2;{ital I}{r arrow}{ital I}{minus}2) ratios are compared to predictions of the Doenau and Frauendorf geometrical formalism extended to odd-odd cases.

• DOE Contract Number: FG05-87ER40361
• OSTI ID: 7205980
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 45:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663570 -- Nuclear Mass Ranges-- A=150-189-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
DATA
DEFORMATION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
EXPERIMENTAL DATA
FERMIONS
FLUORINE 19 REACTIONS
GAMMA SPECTRA
GOLD 186
GOLD 188
GOLD ISOTOPES
HADRONS
HEAVY ION FUSION REACTIONS
HEAVY ION REACTIONS
HEAVY NUCLEI
HIGH SPIN STATES
INFORMATION
ISOTOPES
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR DEFORMATION
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-ODD NUCLEI
RADIOISOTOPES
ROTATIONAL STATES
SPECTRA
TARGETS
YRAST STATES
YTTERBIUM 171 TARGET
YTTERBIUM 173 TARGET