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Analysis of the Unbound Spectra of 12Li and 13Li
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The properties of unbound nuclei 12Li and 13Li are calculated within themultistep shell model in the complex energy plane by assuming that the spectraare determined by the motion of neutrons outside the 9Li core. It is foundthat in 12Li the ground state consists of an antibound 1/2+ state and thatonly this and a 1/2− and a 5/2+ excited states are physically meaningfulresonances. Calculations suggest that there is no bound or antibound statein 13Li.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Instute of Technology , 2011. , viii, 36 p.
Trita-FYS, ISSN 0280-316X ; 2010:80
National Category
Subatomic Physics
URN: urn:nbn:se:kth:diva-30287ISBN: 978-91-7415-854-0OAI: diva2:399335
2011-02-24, Sal FA31, Roslagstullsbacken 21, AlbaNova, Stockholm, 14:00 (English)
QC 20110222Available from: 2011-02-22 Created: 2011-02-21 Last updated: 2011-02-22Bibliographically approved
List of papers
1. Analysis of the unbound spectrum of 12Li.
Open this publication in new window or tab >>Analysis of the unbound spectrum of 12Li.
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2011 (English)In: Nuclear Physics A, ISSN 0375-9474, Vol. 850, 53-68 p.Article in journal (Refereed) Published
Abstract [en]

The unbound nucleus 12Li is evaluated by studying three-neutron one-proton excitations within the multistepshell model in the complex energy plane. It is found that the ground state of this system consists of anantibound 2− state. A number of narrow states at low energy are found which ensue from the coupling ofresonances in 11Li to continuum states close to threshold.

Shell model, Berggren representation, 12Li
National Category
Subatomic Physics
urn:nbn:se:kth:diva-30286 (URN)10.1016/j.nuclphysa.2010.12.003 (DOI)000287270000004 ()2-s2.0-78651363890 (ScopusID)
Swedish Research Council, 623-2009-7340 2010-4723
QC 20110222Available from: 2011-02-21 Created: 2011-02-21 Last updated: 2012-10-25Bibliographically approved

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