Extending MCAS to hypernuclei and radiative-capture reactions

L. Canton, K. Amos, S. Karataglidis, J. P. Svenne

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Using a Multi-Channel Algebraic Scattering (MCAS) approach we have analyzed the spectra of two hypernuclear systems, 9ΛBe and 13ΛC. We have studied the splitting of the two odd-parity excited levels (1/2- and 3/2-) at 11 MeV excitation in 13ΛC, originated by the weak Λ-nucleus spin-orbit force. We have also considered the splittings of the 3/2+ and 5/2+ levels in both 9ΛBe and 13ΛC, finding how they originate from couplings to the collective 2+ states of the core nuclei. In both hypernuclei, we suggest that there could be additional low-lying resonant states in the Λ-nucleus continua. From the MCAS approach one can extract also the full coupled-channel scattering wavefunction to be used in the calculation of various transition matrix elements. As a first application, we have considered the EM-transition matrix elements for the capture reaction α + 3He→7Be+γ.

Original languageEnglish
Title of host publicationCNR 2009 - 2nd International Workshop on Compound Nuclear Reactions and Related Topics
EditorsB. Jurado, N. Dubray, L. Bonneau, F. Gunsing
PublisherEDP Sciences
ISBN (Electronic)9782759805211
DOIs
Publication statusPublished - 9 Mar 2010
Externally publishedYes
Event2nd International Workshop on Compound Nuclear Reactions and Related Topics, CNR 2009 - Bordeaux, France
Duration: 5 Oct 20098 Oct 2009

Publication series

NameEPJ Web of Conferences
Volume2
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference2nd International Workshop on Compound Nuclear Reactions and Related Topics, CNR 2009
Country/TerritoryFrance
CityBordeaux
Period5/10/098/10/09

ASJC Scopus subject areas

  • General Physics and Astronomy

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