Connections between high-K and low-K states in the s-process nucleus Lu176

G. D. Dracoulis; F. G. Kondev; G. J. Lane; A. P. Byrne; M. P. Carpenter; R. V.F. Janssens; T. Lauritsen; C. J. Lister; D. Seweryniak; P. Chowdhury

doi:10.1103/PhysRevC.81.011301

Connections between high-K and low-K states in the s-process nucleus Lu176

G. D. Dracoulis, F. G. Kondev, G. J. Lane, A. P. Byrne, M. P. Carpenter, R. V.F. Janssens, T. Lauritsen, C. J. Lister, D. Seweryniak, P. Chowdhury

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13 Citations (Scopus)

Abstract

Gamma-ray branches that connect high-K states to low-K states in the s-process nucleus Lu176 were observed, thus providing a link between the 58 Gyr, 7- ground state and the 5.3 h, 1- isomeric state. High sensitivity and unambiguous placement were achieved through the study of the decay of the 58 μs Kπ=14+ isomer using γ-γ-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.

Original language	English
Article number	011301
Journal	Physical Review C - Nuclear Physics
Volume	81
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.81.011301
Publication status	Published - 14 Jan 2010

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abstract = "Gamma-ray branches that connect high-K states to low-K states in the s-process nucleus Lu176 were observed, thus providing a link between the 58 Gyr, 7- ground state and the 5.3 h, 1- isomeric state. High sensitivity and unambiguous placement were achieved through the study of the decay of the 58 μs Kπ=14+ isomer using γ-γ-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.",

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AU - Dracoulis, G. D.

AU - Kondev, F. G.

AU - Lane, G. J.

AU - Byrne, A. P.

AU - Carpenter, M. P.

AU - Janssens, R. V.F.

AU - Lauritsen, T.

AU - Lister, C. J.

AU - Seweryniak, D.

AU - Chowdhury, P.

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AB - Gamma-ray branches that connect high-K states to low-K states in the s-process nucleus Lu176 were observed, thus providing a link between the 58 Gyr, 7- ground state and the 5.3 h, 1- isomeric state. High sensitivity and unambiguous placement were achieved through the study of the decay of the 58 μs Kπ=14+ isomer using γ-γ-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.

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Connections between high-K and low-K states in the s-process nucleus Lu176

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