Superdeformed and Triaxial States in Ca42

K. Hadyńska-Klȩk et al.
Phys. Rev. Lett. 117, 062501 – Published 1 August 2016

Abstract

Shape parameters of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca42 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 02+ has been obtained and the role of triaxiality in the A40 mass region is discussed. Furthermore, the potential of Coulomb excitation as a tool to study superdeformation has been demonstrated for the first time.

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  • Received 25 March 2016

DOI:https://doi.org/10.1103/PhysRevLett.117.062501

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

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Vol. 117, Iss. 6 — 5 August 2016

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