Intruder configurations in the ground state of 30Ne | Zendy

Hongna Liu | Zendy; J Lee | Zendy; P. Doornenbal | Zendy; H. Scheit | Zendy; Satoshi Takeuchi | Zendy; N. Aoi | Zendy; Ka Li | Zendy; M. Matsushita | Zendy; D. Steppenbeck | Zendy; H. Wang | Zendy; H. Baba | Zendy; E. Ideguchi | Zendy; B. R. Ko | Zendy; Y. Kondo | Zendy; G. Lee | Zendy; S. Michimasa | Zendy; T. Motobayashi | Zendy; A. Poves | Zendy; H. Sakuraï | Zendy; M. Takechi | Zendy; Y. Togano | Zendy; J. A. Tostevin | Zendy; Y. Utsuno | Zendy

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Intruder configurations in the ground state of 30Ne

Author(s) -

Hongna Liu,

J Lee,

P. Doornenbal,

H. Scheit,

Satoshi Takeuchi,

N. Aoi,

Ka Li,

M. Matsushita,

D. Steppenbeck,

H. Wang,

H. Baba,

E. Ideguchi,

B. R. Ko,

Y. Kondo,

G. Lee,

S. Michimasa,

T. Motobayashi,

A. Poves,

H. Sakuraï,

M. Takechi,

Y. Togano,

J. A. Tostevin,

Y. Utsuno

Publication year - 2017

Publication title -

physics letters b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.093

H-Index - 283

eISSN - 1873-2445

pISSN - 0370-2693

DOI - 10.1016/j.physletb.2017.01.052

Subject(s) - physics , ground state , excitation , shell model , amplitude , neutron , atomic physics , nucleon , inversion (geology) , wave function , shell (structure) , nuclear physics , materials science , quantum mechanics , composite material , paleontology , structural basin , biology

We report on the first detailed study of intruder configurations in the ground state of 30Ne by means of the 12C(30Ne, 29Ne+γ)X one-neutron knockout reaction at 228 MeV/nucleon. Using a combined analysis of individual parallel momentum distributions and partial cross sections we find: (a) comparable p- and d-wave removal strength to 29Ne final states with excitation energies below 200 keV, and (b) significant p-wave removal strength to the 620 keV state of 29Ne, and (c) no evidence for f-wave intruder strength leading to bound 29Ne final states. The SDPF-U-MIX shell model calculation in the sd–pf model space provides a better overall agreement with the measured energy levels of 29Ne and the fp-intruder amplitudes in 30Ne than the SDPF-M prediction, suggesting that the refinement of the sd–pf cross shell interaction and extension of the model space to include the 2p1/2 and 1f5/2 levels are important for understanding the island of inversion

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