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Evidence for a low-frequency. pi. h/sub 9/2/ band crossing in /sup 185/Pt and /sup 183/Ir

Journal Article · · Phys. Rev. Lett.; (United States)
; ; ; ; ; ; ; ; ; ;
Evidence is presented for a ..pi..h/sub 9/2/ band crossing at surprisingly low rotational frequency in the odd-neutron /sup 185/Pt and odd-proton /sup 183/Ir nuclei. The proton nature of the crossing is indicated by measured B(M1;I..-->..I-1)/B(E2;I..-->..I-2) ratios, strongly supported by theoretical values from both the semiclassical Doenau and Frauendorf approach and a variable-core particle-rotor calculation employing cranked-shell-model matrix elements. However, the actual crossing frequency is greatly overestimated by the cranking method using generally accepted model parameters.
Research Organization:
Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200
OSTI ID:
7084126
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 61:18; ISSN PRLTA
Country of Publication:
United States
Language:
English

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Related Subjects

651820* -- Nuclear Properties & Reactions
A=150-189
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BACKBENDING
BARYONS
CHARGED-PARTICLE REACTIONS
DATA
DIRECT REACTIONS
E2-TRANSITIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
ERBIUM 168 TARGET
EVEN-ODD NUCLEI
EXCITED STATES
EXPERIMENTAL DATA
FERMIONS
FLUORINE 19 REACTIONS
GAMMA SPECTROSCOPY
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
IRIDIUM 183
IRIDIUM ISOTOPES
ISOTOPES
M1-TRANSITIONS
MANY-NUCLEON TRANSFER REACTIONS
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
MULTI-NUCLEON TRANSFER REACTIONS
MULTIPOLE TRANSITIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
OXYGEN 16 REACTIONS
PLATINUM 185
PLATINUM ISOTOPES
RADIOISOTOPES
ROTATIONAL STATES
SPECTROSCOPY
TARGETS
TRANSFER REACTIONS
YRAST STATES
YTTERBIUM 173 TARGET