title: Mass measurements of the neutron-deficient 41Ti, 45Cr, 49Fe, and 53Ni nuclides: first test of the isobaric multiplet mass equation in f p-shell nuclei.
abstract: Isochronous mass spectrometry has been applied to neutron-deficient 58Ni projectile fragments at the HIRFL-CSR facility in Lanzhou, China. Masses of a series of short-lived T(z)=-3/2 nuclides including 41Ti, 45Cr, 49Fe, and 53Ni have been measured with a precision of 20-40 keV. The new data enable us to test for the first time the isobaric multiplet mass equation (IMME) in fp-shell nuclei. We observe that the IMME is inconsistent with the generally accepted quadratic form for the A=53, T=3/2 quartet. We perform full space shell model calculations and compare them with the new experimental results.
authors.affiliation: Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
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authors.lastname: Zhang
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authors.lastname: Xu
authors.forename: Yu A
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authors.lastname: Litvinov
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authors.lastname: Tu
authors.forename: X L
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authors.lastname: Yan
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authors.initials: S
authors.lastname: Typel
authors.forename: K
authors.initials: K
authors.lastname: Blaum
authors.forename: M
authors.initials: M
authors.lastname: Wang
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authors.lastname: Zhou
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authors.initials: Y
authors.lastname: Sun
authors.forename: B A
authors.initials: BA
authors.lastname: Brown
authors.forename: Y J
authors.initials: YJ
authors.lastname: Yuan
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authors.lastname: Xia
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authors.lastname: Yang
authors.forename: G
authors.initials: G
authors.lastname: Audi
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authors.lastname: Chen
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authors.lastname: Jia
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authors.lastname: Hu
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authors.lastname: Ma
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authors.lastname: Mao
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authors.lastname: Mei
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authors.lastname: Shuai
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authors.lastname: Sun
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authors.lastname: Wang
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authors.lastname: Xiao
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authors.lastname: Xu
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authors.lastname: Yamaguchi
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authors.lastname: Yamaguchi
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authors.lastname: Zang
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authors.lastname: Zhao
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authors.lastname: Zhao
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authors.lastname: Zhang
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