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Mass Measurements of the Neutron-Deficient Ti-41, Cr-45, Fe-49, and Ni-53 Nuclides: First Test of the Isobaric Multiplet Mass Equation in f p-Shell Nuclei

Abstract : Isochronous mass spectrometry has been applied to neutron-deficient Ni-58 projectile fragments at the HIRFL-CSR facility in Lanzhou, China. Masses of a series of short-lived T-z = -3/2 nuclides including Ti-41, Cr-45, Fe-49, and Ni-53 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 f p-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.
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http://hal.in2p3.fr/in2p3-00749910
Contributor : Christine Hadrossek <>
Submitted on : Thursday, November 8, 2012 - 3:43:14 PM
Last modification on : Wednesday, September 16, 2020 - 5:42:41 PM

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Y.H. Zhang, H. S. Xu, Y.A. Litvinov, X.L. Tu, X. L. Yan, et al.. Mass Measurements of the Neutron-Deficient Ti-41, Cr-45, Fe-49, and Ni-53 Nuclides: First Test of the Isobaric Multiplet Mass Equation in f p-Shell Nuclei. Physical Review Letters, American Physical Society, 2012, 109, pp.102501. ⟨10.1103/PhysRevLett.109.102501⟩. ⟨in2p3-00749910⟩

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