Abstract.
High-precision mass measurements of stable and beta-decaying nuclides 52-57Cr, 55Mn, 56,59Fe, 59Co, 75, 77-79Ga, and the lanthanide nuclides 140Ce, 140Nd, 160Yb, 168Lu, 178Yb have been performed with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN. The new data are entered into the Atomic Mass Evaluation and improve the accuracy of masses along the valley of stability, strengthening the so-called backbone. The mass of neutron-deficient 168Lu in its isomeric state has been measured directly. The mass of neutron-rich 178Yb indicates a change of nuclear structure approaching the double harmonic-oscillator shell closure for \( Z=70\) and \( N=112\).
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Huang, W.J., Atanasov, D., Audi, G. et al. Evaluation of high-precision atomic masses of A ∼ 50–80 and rare-earth nuclides measured with ISOLTRAP. Eur. Phys. J. A 55, 96 (2019). https://doi.org/10.1140/epja/i2019-12775-5
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DOI: https://doi.org/10.1140/epja/i2019-12775-5