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

Zhang, Y.H.; Xu, H.S.; Litvinov, Yu.A.; Tu, X.L.; Yan, X.L.; Typel, S.; Blaum, Klaus; Wang, M.; Zhou, X.H.; Sun, Y.; Brown, B.A.; Yuan, Y.J.; Xia, J.W.; Yang, J.C.; Audi, G.; Chen, X.C.; Jia, B.G.; Hu, Z.G.; Ma, X.W.; Mao, R.S.; Mei, B.; Shuai, P.; Sun, Z.Y.; Wang, S.T.; Xiao, G.Q.; Xu, X.; Yamaguchi, T.; Yamaguchi, Y.; Zang, Y.D.; Zhao, H.W.; Zhao, T.C.; Zhang, W.; Zhan, W.L.

doi:10.1103/PhysRevLett.109.102501

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

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Blaum, Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

Wang, M.
Institute of Modern Physics, Chinese Academy of Sciences;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
CSNSM-IN2P3-CNRS, Université de Paris Sud;

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http://link.aps.org/doi/10.1103/PhysRevLett.109.102501
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Citation

Zhang, Y., Xu, H., Litvinov, Y., Tu, X., Yan, X., Typel, S., et al. (2012). Mass Measurements of the Neutron-Deficient ⁴¹Ti, ⁴⁵Cr, ⁴⁹Fe, and ⁵³Ni Nuclides: First Test of the Isobaric Multiplet Mass Equation in fp-Shell Nuclei. Physical Review Letters, 109(10): 102501, pp. 1-5. doi:10.1103/PhysRevLett.109.102501.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-EA7F-2

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.