High-spin states and isomers in the one-proton-hole and three-neutron-hole {sup 204}Tl isotope

Journal Article · Fri Jul 15 04:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.014330· OSTI ID:21596576

Broda, R; Maier, K H; Fornal, B; Wrzesinski, J; Szpak, B; Krolas, W; Pawlat, T ^[1]; Carpenter, M P; Janssens, R V. F.; Zhu, S ^[2]

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1. H. Niewodniczanski Institute of Nuclear Physics PAN, PL-31342 Krakow (Poland)
2. 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, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 84; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM 48 REACTIONS
CHARGED PARTICLES
DAYS LIVING RADIOISOTOPES
DECAY
DEEP INELASTIC SCATTERING
DETECTION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXCITATION
FERMIONS
GAMMA DECAY
GAMMA DETECTION
HADRONS
HEAVY ION REACTIONS
HEAVY IONS
HEAVY NUCLEI
HIGH SPIN STATES
INELASTIC SCATTERING
INTERACTIONS
IONS
ISOMERS
ISOTOPES
LEAD 208 TARGET
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MATHEMATICAL MODELS
MERCURY 203
MERCURY ISOTOPES
MEV RANGE
MEV RANGE 10-100
MULTIPOLES
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
OCTUPOLES
ODD-ODD NUCLEI
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PROTONS
RADIATION DETECTION
RADIOISOTOPES
SCATTERING
SHELL MODELS
SPECTROSCOPY
SPIN
TARGETS
THALLIUM 204
THALLIUM ISOTOPES
URANIUM 238 TARGET
YEARS LIVING RADIOISOTOPES
YRAST STATES