Connections between high-K and low-K states in the s-process nucleus {sup 176}Lu

Journal Article · Fri Jan 15 00:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.011301· OSTI ID:21386519

Dracoulis, G D; Lane, G J; Byrne, A P ^[1]; Kondev, F G ^[2]; Carpenter, M P; Janssens, R V. F.; Lauritsen, T; Lister, C J; Seweryniak, D ^[3]; Chowdhury, P ^[4]

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1. Department of Nuclear Physics, R.S.P.E., Australian National University, Canberra, A.C.T. Australia 0200 (Australia)
2. Nuclear Engineering Division, Argonne National Laboratory, Argonne Illinois (United States)
3. Physics Division, Argonne National Laboratory, Argonne Illinois (United States)
4. Department of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854 (United States)

Gamma-ray branches that connect high-K states to low-K states in the s-process nucleus {sup 176}Lu were observed, thus providing a link between the 58 Gyr, 7{sup -} ground state and the 5.3 h, 1{sup -} isomeric state. High sensitivity and unambiguous placement were achieved through the study of the decay of the 58 {mu}s K{sup {pi}}=14{sup +} isomer using {gamma}-{gamma}-coincidence measurements. The large number of decay paths from the isomer provides a means of populating a broad selection of states from above, resulting, paradoxically, in higher sensitivity than in cases where low-spin input reactions are used. The out-of band decay widths important for excitation processes in stars are quantified.

• OSTI ID: 21386519
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 1; Other Information: DOI: 10.1103/PhysRevC.81.011301; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DECAY
EXCITATION
GAMMA RADIATION
GROUND STATES
ISOMERS
LUTETIUM 176
S PROCESS
SENSITIVITY
SPIN
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVOLUTION
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOTOPES
LUTETIUM ISOTOPES
NUCLEI
ODD-ODD NUCLEI
PARTICLE PROPERTIES
RADIATIONS
RADIOISOTOPES
RARE EARTH NUCLEI
STAR EVOLUTION
YEARS LIVING RADIOISOTOPES