Source:http://linkedlifedata.com/resource/pubmed/id/19659139
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
1
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| pubmed:dateCreated |
2009-8-7
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| pubmed:abstractText |
The 1789 keV state in 30Mg was identified as the first excited 0+ state via its electric monopole (E0) transition to the ground state. The measured small value of rho2(E0,0(2)+-->0(1)+)=(26.2+/-7.5)x10(-3) implies within a two-level model a small mixing of competing configurations with largely different intrinsic quadrupole deformation near the neutron shell closure at N=20. Axially symmetric configuration mixing calculations identify the ground state of 30Mg to be based on neutron configurations below the N=20 shell closure, while the excited 0+ state mainly consists of two neutrons excited into the nu 1f7/2 orbital. The experimental result represents the first case where an E0 back decay from a strongly deformed second to the normal deformed first nuclear potential minimum well has been unambiguously identified, thus directly proving shape coexistence at the borderline of the much-debated "island of inversion."
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Jul
|
| pubmed:issn |
0031-9007
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| pubmed:author |
pubmed-author:BildsteinVV,
pubmed-author:EgidoJ LJL,
pubmed-author:FraileL MLM,
pubmed-author:GernhäuserRR,
pubmed-author:HübelHH,
pubmed-author:HertenbergerRR,
pubmed-author:HeydeKK,
pubmed-author:HoffPP,
pubmed-author:KösterUU,
pubmed-author:KATZM EME,
pubmed-author:KröllTT,
pubmed-author:KrückenRR,
pubmed-author:LutterRR,
pubmed-author:MachHH,
pubmed-author:MorganTT,
pubmed-author:RinnWW,
pubmed-author:RodriguezT RTR,
pubmed-author:SchwerdtfegerWW,
pubmed-author:ThirolfP GPG,
pubmed-author:WimmerKK
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| pubmed:issnType |
Print
|
| pubmed:day |
3
|
| pubmed:volume |
103
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| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
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| pubmed:pagination |
012501
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| pubmed:year |
2009
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| pubmed:articleTitle |
Shape coexistence near neutron number N=20: first identification of the E0 decay from the deformed first excited Jpi=0+ state in 30Mg.
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| pubmed:affiliation |
Ludwig-Maximilians-Universität München, D-85748 Garching, Germany.
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| pubmed:publicationType |
Journal Article
|