Cultural advice

The Australian National University acknowledges, celebrates and pays our respects to the Ngunnawal and Ngambri people of the Canberra region and to all First Nations Australians on whose traditional lands we meet and work, and whose cultures are among the oldest continuing cultures in human history.

Aboriginal and Torres Strait Islander peoples are advised that ANU Library collections may include images, names, voices, and other representations of deceased persons.

Material in the collection may contain terms, language or views that reflect the period in which the item was created and may be considered inappropriate today.

Persistence of K Isomerism in the N = 104 Isotones: Observations of a High-seniority Isomer 179 75 Re

Thumbnail Image

Date

2002

Authors

Thwaites, C.
Wheldon, C
Bruce, A M
Walker, Philip M
Dracoulis, George
Byrne, Aidan
Kibedi, Tibor
Kondev, F.
Pearson, C J
Purry, C

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

The nuclear decay of 75179Re has been studied following the 165Ho(18O,4n)179Re and 173Yb(11B,5n)179Re reactions. Previously unobserved multiquasiparticle states have been identified in 75179Re, with highly K-forbidden decays. One of these, with a half-life of 466±15 μs, is the longest-lived high-seniority (>6) isomer yet discovered. This metastable state offers an opportunity to explore K isomerism as protons are added away from the midshell region. In addition, the excitation energies of several previously "floating" bands have been determined. Energies, lifetimes, configuration assignments, and g factors are discussed and compared to predictions of blocked BCS calculations.

Description

Keywords

Citation

URI

http://hdl.handle.net/1885/73136

Collections

ANU Research Publications

Source

Physical Review C: Nuclear Physics

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

Restricted until

DSpace software copyright © 2002-2026 LYRASIS

abcd