1. |
- Weissman, L., et al.
(författare)
-
beta decay of Ar-49,Ar-50
- 2003
-
Ingår i: Physical Review C - Nuclear Physics. - 2469-9985 .- 2469-9993. ; 67:5
-
Tidskriftsartikel (refereegranskat)abstract
- Information on gross beta-decay properties of neutron-rich noble gas isotopes Ar-49,Ar-50 was obtained at the PSB-ISOLDE facility at CERN using isobaric selectivity achieved by the combination of a plasma ion source with a cooled transfer line and subsequent mass separation. A doubly charged beam was used in the case of Ar-49 to suppress the corresponding multicharged background from heavier noble gas fission products. The comparison of the obtained data with results of quasiparticle random-phase approximation calculations indicates that the N=28 shell is not disturbed significantly for neutron-rich Ar nuclei. The obtained results are useful for better understanding of the origin of the Ca-48/Ca-46 isotopic anomaly discovered in inclusions from the Allende meteorite.
|
|