Multistep shell model in the complex energy plane
2012 (English)In: Advanced Many-Body And Statistical Methods In Mesoscopic Systems, Institute of Physics Publishing (IOPP), 2012, 012029- p.Conference paper (Refereed)
We have adopted the multistep shell model in the complex energy plane to study nuclear excitations occurring in the continuum part of the spectrum. In this method one proceeds by solving the shell model equations in a successive manner. That is, in each step one constructs the building blocks to be used in future steps. We applied this formalism to analyze the unbound nuclei Li-12,Li-13 starting from the one - particle states in Li-10 and two - particle states in Li-11. In the former case the excitations correspond to the motion of three particles partitioned as the product of a one - particle and two - particle systems. The ground state of Li-12 is thus calculated to be an antibound (virtual) state. In the four - particle system Li-13 the states can be constructed as the coupling of two correlated pairs. We found that there is no bound or antibound state in Li-13.
Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2012. 012029- p.
, Journal of Physics: Conference Series, ISSN 1742-6588 ; 338
Research subject SRA - E-Science (SeRC)
IdentifiersURN: urn:nbn:se:kth:diva-74463DOI: 10.1088/1742-6596/338/1/012029ISI: 000304599800029ScopusID: 2-s2.0-84859534182OAI: oai:DiVA.org:kth-74463DiVA: diva2:489672
Advanced Many-Body and Statistical Methods in Mesoscopic Systems; Constanta; 27 June 2011 through 2 July 2011
FunderSwedish e‐Science Research Center
QC 201206262012-02-032012-02-032012-10-25Bibliographically approved