Superdeformed and Triaxial States in Ca-42
2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 117, no 6, 062501Article in journal (Refereed) Published
Shape parameters of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca-42 were determined from E2 matrix elements measured in the first low-energy Coulomb excitation experiment performed with AGATA. The picture of two coexisting structures is well reproduced by new state-of-the-art large-scale shell model and beyond-mean-field calculations. Experimental evidence for superdeformation of the band built on 0(2)(+) has been obtained and the role of triaxiality in the A similar to 40 mass region is discussed. Furthermore, the potential of Coulomb excitation as a tool to study superdeformation has been demonstrated for the first time.
Place, publisher, year, edition, pages
American Physical Society , 2016. Vol. 117, no 6, 062501
Ground state, Coulomb excitation, Experimental evidence, Ground-state band, Matrix elements, Mean-field calculations, Shape parameters, State of the art, Super-deformation
IdentifiersURN: urn:nbn:se:kth:diva-192406DOI: 10.1103/PhysRevLett.117.062501ISI: 000380966400004ScopusID: 2-s2.0-84982136179OAI: oai:DiVA.org:kth-192406DiVA: diva2:970676
QC 201609142016-09-142016-09-122016-09-14Bibliographically approved