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Mass measurements on stable nuclides in the rare-earth region with the Penning-trap mass spectrometer RIGA-TRAP

Abstract : The masses of 15 stable nuclides in the rare-earth region have been measured with the Penning-trap mass spectrometer TRIGA-TRAP. This is the first series of absolute mass measurements linking these nuclides to the atomic-mass standard (12)C. Previously, nuclear reaction studies almost exclusively determined the literature values of these masses in the Atomic-Mass Evaluation. The TRIGA-TRAP results show deviations on the order of 3-4 standard deviations from the latest published values of the Atomic-Mass Evaluation 2003 for some cases. However, the binding-energy differences that are important for nuclear structure studies have been confirmed and improved. The new masses are discussed in the context of valence proton-neutron interactions using double differences of binding energies, delta V(pn) (Z, N).
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Contributor : Christine Hadrossek <>
Submitted on : Friday, September 9, 2011 - 2:49:41 PM
Last modification on : Wednesday, September 16, 2020 - 4:17:24 PM

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J. Ketelaer J., G. Audi, T. Beyer, K. Blaum, M. Block, et al.. Mass measurements on stable nuclides in the rare-earth region with the Penning-trap mass spectrometer RIGA-TRAP. Physical Review C, American Physical Society, 2011, 84, pp.014311. ⟨10.1103/PhysRevC.84.014311⟩. ⟨in2p3-00621139⟩

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