Triple configuration coexistence in 44 S

Date

2011

Authors

Santiago-Gonzalez, D.
Wiedenhover, I.
Abramkina, V.
Avila, M.L.
Baugher, T.
Bazin, D.
Brown, B A
Cottle, P.D.
Gade, A
Glasmacher, Thomas

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

The neutron-rich N=28 nucleus S44 was studied using the two-proton knockout reaction from Ar46 at intermediate beam energy. We report the observation of four new excited states, one of which is a strongly prolate deformed 4 + state, as indicated by a shell-model calculation. Its deformation originates in a neutron configuration which is fundamentally different from the "intruder" configuration responsible for the ground-state deformation. Consequently, we do not have three coexisting shapes in S44, but three coexisting configurations, corresponding to zero-, one-, and two-neutron particle-hole excitations. � 2011 American Physical Society.

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Citation

Source

Physical Review C: Nuclear Physics

Type

Journal article

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Access Statement

Open Access

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