ISSN:
1434-601X
Keywords:
PACS:23.60.+e α decay – 23.20.En Angular distribution and correlation measurements – 21.10.Ky Electromagnetic moments
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: The low spin states of 223Ra have been populated via α-decay from 227Th which was itself produced following β− decay of an 227Ac source. α–γ and α−e K,L,M angular correlation measurements have been analysed using the correct ground state spins of 227Th(=1/2+) and 223Ra(=3/2+) for the first time. The analysis has allowed unique Jπ values to be assigned to almost all levels below 400 keV excitation in 223Ra. Values of (g K−g R)/Q 0 have been deduced for several members of the K= 3/2± bands (for the first time in an odd N nucleus in this mass region) allowing estimates of g K and g R to be extracted. The values of g K and g R are not significantly different for the positive and negative parity band members and tend to support other strong evidence that stable octupole deformation exists in 223Ra at low excitation energies.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100500050101
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