Claes Fahlander
Professor emeritus
Search for proton emission of the isomeric 10+ state in 54Ni
Author
Summary, in English
Several experiments were conducted at the 10 MV Van-de-Graaff tandem accelerator at the Institute of Nuclear Physics, Cologne, to detect proton emission from the isomeric 6457-keV 10+ state in 54Ni. Excitation functions for two fusion–evaporation reactions were measured to maximise the population of the rare two-neutron evaporation channel from a 56Ni compound nucleus. The search for delayed proton emission was based on the 28Si(28Si,2n)54Ni reaction at a beam energy of 70 MeV. For this reaction, a cross-section limit for the population of the 10+ state in 54Ni and its proton-decay branch was determined to be σ< 22 nb.
Department/s
- Nuclear physics
Publishing year
2020-01-24
Language
English
Publication/Series
European Physical Journal A
Volume
56
Issue
1
Links
Document type
Journal article
Publisher
Springer
Topic
- Subatomic Physics
Keywords
- nuclear structure
- proton emission
Status
Published
Project
- Nuclear Structure at the Limits: Isotope-selective Spectroscopy
ISBN/ISSN/Other
- ISSN: 1434-6001