High-spin states and isomers in the one-proton-hole and three-neutron-hole {sup 204}Tl isotope
- H. Niewodniczanski Institute of Nuclear Physics PAN, PL-31342 Krakow (Poland)
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
The high-spin structure of the neutron-rich {sup 204}Tl isotope has been studied up to a 11.2-MeV excitation energy and a I=30 spin range using the deep-inelastic heavy-ion {gamma}-spectroscopy method with reactions of {sup 48}Ca on thick {sup 208}Pb and {sup 238}U targets. The established structure of yrast levels involves four isomeric states up to I{sup {pi}=}22{sup -}, the highest spin state available for the maximally aligned four valence holes. The observations are interpreted and quantitatively confirmed by shell-model calculations. The rates of the identified M2 and E3 isomeric decays are discussed and a striking analogy is found for the yrast level structures and {gamma} decays observed in the 18{sup +} to 22{sup -} and 45/2{sup -} to 53/2{sup +} spin ranges in {sup 204}Tl and {sup 203}Hg, respectively. In the highest spin part of the scheme, two prominently populated yrast states are tentatively identified as the 3{sup -} {sup 208}Pb core excitation built on the 22{sup -} and 20{sup +} maximally aligned four-hole states. Their energies are reproduced well by using energy shifts observed in experiments for the {sup 208}Pb core octupole excitation coupled to simpler intrinsic structures.
- OSTI ID:
- 21596576
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 84, Issue 1; Other Information: DOI: 10.1103/PhysRevC.84.014330; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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CALCIUM 48 REACTIONS
DEEP INELASTIC SCATTERING
EXCITATION
GAMMA DECAY
GAMMA DETECTION
HEAVY IONS
HIGH SPIN STATES
ISOMERS
LEAD 208 TARGET
MERCURY 203
MEV RANGE 10-100
NEUTRON-RICH ISOTOPES
NEUTRONS
OCTUPOLES
PROTONS
SHELL MODELS
SPECTROSCOPY
SPIN
THALLIUM 204
URANIUM 238 TARGET
YRAST STATES
ANGULAR MOMENTUM
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHARGED PARTICLES
DAYS LIVING RADIOISOTOPES
DECAY
DETECTION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
INELASTIC SCATTERING
INTERACTIONS
IONS
ISOTOPES
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MATHEMATICAL MODELS
MERCURY ISOTOPES
MEV RANGE
MULTIPOLES
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
RADIATION DETECTION
RADIOISOTOPES
SCATTERING
TARGETS
THALLIUM ISOTOPES
YEARS LIVING RADIOISOTOPES