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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2006-10-9
pubmed:abstractText
We have identified two isomers in 254No, built on two- and four-quasiparticle excitations, with quantum numbers K pi = 8- and (14+), as well as a low-energy 2-quasiparticle Kpi = 3+ state. The occurrence of isomers establishes that K is a good quantum number and therefore that the nucleus has an axial prolate shape. The 2-quasiparticle states probe the energies of the proton levels that govern the stability of superheavy nuclei, test 2-quasiparticle energies from theory, and thereby check their predictions of magic gaps.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Aug
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
97
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
082502
pubmed:year
2006
pubmed:articleTitle
K isomers in 254No: probing single-particle energies and pairing strengths in the heaviest nuclei.
pubmed:affiliation
Department of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA.
pubmed:publicationType
Journal Article