Shape coexistence and isomeric states in neutron-rich {sup 112}Tc and {sup 113}Tc

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.044312· OSTI ID:21419604

Bruce, A M; Lalkovski, S; Denis Bacelar, A M ^[1]; Gorska, M; Bednarczyk, P; Caceres, L; Geissel, H; Gerl, J; Kojouharov, I; Kurz, N; Prokopowicz, W; Schaffner, H; Tashenov, S; Wollersheim, H J ^[2]; Pietri, S ^[2]; Podolyak, Zs; Walker, P M; Cullen, I J; Farrelly, G F; Garnsworthy, A B ^[3]

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1. School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ (United Kingdom)
2. Gesellschaft fuer Schwerionenforschung mbH, Planckstrasse 1, D-64291 Darmstadt (Germany)
3. Department of Physics, University of Surrey, Guildford GU2 7XH (United Kingdom)

Isomeric states in {sup 112}Tc and {sup 113}Tc, with half-lives of 150(17) ns and 500(100) ns, respectively, have been observed following the relativistic fission of {sup 238}U. The fission fragments have been separated in a fragment separator and identified by means of energy-loss and time-of-flight techniques. In both nuclei, the ground-state configuration is calculated to have an oblate shape and the isomerism is proposed to arise due to transitions from a triaxial excited state to a low-lying oblate state.

• OSTI ID: 21419604
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 4; Other Information: DOI: 10.1103/PhysRevC.82.044312; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CONFIGURATION
ENERGY LOSSES
EXCITED STATES
FISSION
FISSION FRAGMENTS
GROUND STATES
HALF-LIFE
NEUTRON-RICH ISOTOPES
NEUTRONS
RELATIVISTIC RANGE
TECHNETIUM 112
TECHNETIUM 113
TIME-OF-FLIGHT METHOD
URANIUM 238
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
FERMIONS
HADRONS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
LOSSES
MILLISECONDS LIVING RADIOISOTOPES
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
SPONTANEOUS FISSION RADIOISOTOPES
TECHNETIUM ISOTOPES
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES