The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Default user image.

Claes Fahlander

Professor emeritus

Default user image.

Isospin Symmetry and Proton Decay: Identification of the 10+ Isomer in 54Ni

Author

  • Dirk Rudolph
  • Robert Hoischen
  • Margareta Hellström
  • S. Pietri
  • Zs. Podolyák
  • P. H. Regan
  • A. B. Garnsworthy
  • S. J. Steer
  • F. Becker
  • P. Bednarczyk
  • L. Caceres
  • P. Doornenbal
  • J. Gerl
  • M. Górska
  • J. Grebosz
  • I. Kojouharov
  • N. Kurz
  • W. Prokopowicz
  • H. Schaffner
  • H. J. Wollersheim
  • Lise-Lotte Andersson
  • L. Atanasova
  • D. L. Balabanski
  • M. A. Bentley
  • A. Blazhev
  • C. Brandau
  • J. R. Brown
  • Claes Fahlander
  • Emma Johansson
  • A. Jungclaus
  • S. M. Lenzi

Summary, in English

The gamma decays from an isomeric 10+ state at 6457 keV in the nucleus 54Ni have been identified using the GSI fragment separator in conjunction with the RISING Ge-detector array. The state is interpreted as the isobaric analog of the 6527-keV 10+ isomer in 54Fe. The results are discussed in terms of isospin-dependent shell-model calculations. Clear evidence is presented for a discrete l = 5 proton decay branch into the first excited 9/2- state of the daughter 53Co. This decay is the first of its kind observed following projectile fragmentation reactions.

Department/s

  • Nuclear physics
  • Dept of Physical Geography and Ecosystem Science

Publishing year

2008

Language

English

Publication/Series

Physical Review C (Nuclear Physics)

Volume

78

Issue

2

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

Project

  • Isotope-selective Spectroscopy: Fast Timing R&D and fp-Shell Mirror Isomers

Research group

  • Nuclear Structure

ISBN/ISSN/Other

  • ISSN: 0556-2813