The systematics of h<math><mtext>11</mtext><mtext>2</mtext></math> proton alignment in 157, 158, 159Er期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The systematics of h_$112$ proton alignment in ^{157, 158, 159}Er

Authors:	MA Riley J Simpson R Aryaeinejad JR Cresswell PD Forsyth D Howe PJ Nolan BM Nyakó JF Sharpey-Schafer PJ Twin J Bacelar JD Garrett GB Hagemann B Herskind A Holm

Institution:	Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 3BX, UK;Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, UK;Niels Bohr Institute, University of Copenhagen, DK2100, Copenhagen, Denmark

Abstract:	Rotational bands have been observed in ^{157, 158, 159}Er to very high spin ( $J ～ 41 h ?$ ). Upbends are found, due to the alignment of two h_$112$ protons at $0.40 ? h ? ω ? 0.46 MeV$ in all bands. A systematic shift with neutron number of the band-crossing frequency is observed and is related to a change in quadrupole deformation ?₂.

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