Prolate-to-oblate transition and backbending along the yrast line induced by quasiparticle alignment

Fang Qi Chen; Q. B. Chen

doi:10.1016/j.physletb.2020.135620

Prolate-to-oblate transition and backbending along the yrast line induced by quasiparticle alignment

Fang Qi Chen
, Q. B. Chen

Northwestern Polytechnical University Xian
Technical University of Munich

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

The yrast lines in Kr isotopes with N=42, 44, and 46 are investigated in a beyond mean field framework with both prolate-oblate coexistence and quasiparticle alignment taken into account. Quasiparticle orbitals with high-j and low-Ω on the oblate side are shown to be responsible for the sharp backbending observed in ⁸²Kr, by driving the yrast shape from prolate to oblate. This suggests that quasiparticle alignment may not be neglected in the investigation of the shape evolution along the yrast line.

源语言	英语
文章编号	135620
期刊	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
卷	808
DOI	https://doi.org/10.1016/j.physletb.2020.135620
出版状态	已出版 - 10 9月 2020
已对外发布	是

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title = "Prolate-to-oblate transition and backbending along the yrast line induced by quasiparticle alignment",

abstract = "The yrast lines in Kr isotopes with N=42, 44, and 46 are investigated in a beyond mean field framework with both prolate-oblate coexistence and quasiparticle alignment taken into account. Quasiparticle orbitals with high-j and low-Ω on the oblate side are shown to be responsible for the sharp backbending observed in 82Kr, by driving the yrast shape from prolate to oblate. This suggests that quasiparticle alignment may not be neglected in the investigation of the shape evolution along the yrast line.",

author = "Chen, \{Fang Qi\} and Chen, \{Q. B.\}",

note = "Publisher Copyright: {\textcopyright} 2020 The Authors",

year = "2020",

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AU - Chen, Fang Qi

AU - Chen, Q. B.

PY - 2020/9/10

Y1 - 2020/9/10

N2 - The yrast lines in Kr isotopes with N=42, 44, and 46 are investigated in a beyond mean field framework with both prolate-oblate coexistence and quasiparticle alignment taken into account. Quasiparticle orbitals with high-j and low-Ω on the oblate side are shown to be responsible for the sharp backbending observed in 82Kr, by driving the yrast shape from prolate to oblate. This suggests that quasiparticle alignment may not be neglected in the investigation of the shape evolution along the yrast line.

AB - The yrast lines in Kr isotopes with N=42, 44, and 46 are investigated in a beyond mean field framework with both prolate-oblate coexistence and quasiparticle alignment taken into account. Quasiparticle orbitals with high-j and low-Ω on the oblate side are shown to be responsible for the sharp backbending observed in 82Kr, by driving the yrast shape from prolate to oblate. This suggests that quasiparticle alignment may not be neglected in the investigation of the shape evolution along the yrast line.

UR - https://www.scopus.com/pages/publications/85088115242

U2 - 10.1016/j.physletb.2020.135620

DO - 10.1016/j.physletb.2020.135620

M3 - 文章

AN - SCOPUS:85088115242

SN - 0370-2693

VL - 808

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 135620

ER -

Prolate-to-oblate transition and backbending along the yrast line induced by quasiparticle alignment

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