Margareta Hellström
Forskare
Isospin Symmetry and Proton Decay: Identification of the 10+ Isomer in 54Ni
Författare
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.
Avdelning/ar
- Kärnfysik
- Institutionen för naturgeografi och ekosystemvetenskap
Publiceringsår
2008
Språk
Engelska
Publikation/Tidskrift/Serie
Physical Review C (Nuclear Physics)
Volym
78
Issue
2
Dokumenttyp
Artikel i tidskrift
Förlag
American Physical Society
Ämne
- Subatomic Physics
Status
Published
Projekt
- Isotope-selective Spectroscopy: Fast Timing R&D and fp-Shell Mirror Isomers
Forskningsgrupp
- Nuclear Structure
ISBN/ISSN/Övrigt
- ISSN: 0556-2813