Physics Letters B (Mar 2023)
Large collectivity in 29Ne at the boundary of the island of inversion
- A. Revel,
- J. Wu,
- H. Iwasaki,
- J. Ash,
- D. Bazin,
- B.A. Brown,
- J. Chen,
- R. Elder,
- P. Farris,
- A. Gade,
- M. Grinder,
- N. Kobayashi,
- J. Li,
- B. Longfellow,
- T. Mijatović,
- J. Pereira,
- A. Poves,
- A. Sanchez,
- N. Shimizu,
- M. Spieker,
- Y. Utsuno,
- D. Weisshaar
Affiliations
- A. Revel
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France; Corresponding author at: IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
- J. Wu
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- H. Iwasaki
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- J. Ash
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- D. Bazin
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- B.A. Brown
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- J. Chen
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- R. Elder
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Engineering, Washington and Lee University, Lexington, VA 24450, USA
- P. Farris
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- A. Gade
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- M. Grinder
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- N. Kobayashi
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- J. Li
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- B. Longfellow
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- T. Mijatović
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Ruder Bošković Institute, HR-10002 Zagreb, Croatia
- J. Pereira
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- A. Poves
- Departamento de Fisica Teorica and IFT-UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
- A. Sanchez
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- N. Shimizu
- Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8577, Japan
- M. Spieker
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- Y. Utsuno
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
- D. Weisshaar
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- Journal volume & issue
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Vol. 838
p. 137704
Abstract
The heavy-ion inelastic scattering of the neutron-rich nucleus 29Ne to its excited states was studied using a 100.1 MeV/u 29Ne rare isotope beam on 181Ta and 9Be targets. The combined setup consisting of the GRETINA array, the TRIPLEX device and the S800 Spectrograph facilitates the simultaneous measurements of the two inelastic reactions, providing the first measurement of the transition strengths for this isotope. A sizable E2 strength B(E2↑) which amounts to 163(30) e2fm4 was determined in the excitation to the 931-keV state, demonstrating a large degree of collectivity. The present results of B(E2↑) are compared to various shell-model calculations, confirming the role of intruder configurations in 29Ne at the boundary of the island of inversion.
