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Lifetime Measurements and Triple Coexisting Band Structure in
Mijatovic, T; Kobayashi, N; Iwasaki, H; Bazin, D; Belarge, J; Bender, P C; Brown, B A; Dewald, A; Elder, R; Elman, B; Gade, A; Grinder, M; Haylett, T; Heil, S; Loelius, C; Longfellow, B; Lunderberg, E; Mathy, M; Whitmore, K; Weisshaar, D.
Affiliation
  • Mijatovic T; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Kobayashi N; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Iwasaki H; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Bazin D; Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
  • Belarge J; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Bender PC; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Brown BA; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Dewald A; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Elder R; Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
  • Elman B; Institut für Kernphysik der Universität zu Köln, Köln D-50937, Germany.
  • Gade A; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Grinder M; Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
  • Haylett T; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Heil S; Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
  • Loelius C; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Longfellow B; Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
  • Lunderberg E; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Mathy M; Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
  • Whitmore K; Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom.
  • Weisshaar D; Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt 64289, Germany.
Phys Rev Lett ; 121(1): 012501, 2018 Jul 06.
Article in En | MEDLINE | ID: mdl-30028163
ABSTRACT
Lifetime measurements of excited states in the neutron-rich nucleus ^{43}S were performed by applying the recoil-distance method on fast rare-isotope beams in conjunction with the Gamma-Ray Energy Tracking In-beam Nuclear Array. The new data based on γγ coincidences and lifetime measurements resolve a doublet of (3/2^{-}) and (5/2^{-}) states at low excitation energies. Results were compared to the π(sd)-ν(pf) shell model and antisymmetrized molecular dynamics calculations. The consistency with the theoretical calculations identifies a possible appearance of three coexisting bands near the ground state of ^{43}S the K^{π}=1/2^{-} band built on a prolate-deformed ground state, a band built on an isomer with a 1f_{7/2}^{-1} character, and a suggested excited band built on a newly discovered doublet state. The latter further confirms the collapse of the N=28 shell closure in the neutron-rich region.

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2018 Document type: Article

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2018 Document type: Article