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

J. Ketelaer, G. Audi, T. Beyer, K. Blaum, M. Block, R. B. Cakirli, R. F. Casten, C. Droese, M. Dworschak, K. Eberhardt, M. Eibach, F. Herfurth, E. Minaya Ramirez, Sz. Nagy, D. Neidherr, W. Nörtershäuser, C. Smorra, and M. Wang
Phys. Rev. C 84, 014311 – Published 12 July 2011

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 C12. 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, δVpn(Z,N).

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  • Received 16 November 2010

DOI:https://doi.org/10.1103/PhysRevC.84.014311

©2011 American Physical Society

Authors & Affiliations

J. Ketelaer1,2,*, G. Audi3, T. Beyer1,4, K. Blaum1,4, M. Block5, R. B. Cakirli1,6, R. F. Casten7, C. Droese8, M. Dworschak5, K. Eberhardt9, M. Eibach4,9, F. Herfurth5, E. Minaya Ramirez5,10, Sz. Nagy1,5, D. Neidherr1,10, W. Nörtershäuser5,9, C. Smorra4,9, and M. Wang3,11

  • 1Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
  • 2Institut für Physik, Johannes Gutenberg-Universität, D-55128 Mainz, Germany
  • 3CSNSM-IN2P3-CNRS, Université de Paris Sud, F-91405 Orsay, France
  • 4Ruprecht-Karls-Universität, D-69120 Heidelberg, Germany
  • 5GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
  • 6Department of Physics, University of Istanbul, Istanbul, Turkey
  • 7Yale University, New Haven, Connecticut 06520-8120, USA
  • 8Ernst-Moritz-Arndt-Universität, D-17487 Greifswald, Germany
  • 9Institut für Kernchemie, Johannes Gutenberg-Universität, D-55128 Mainz, Germany
  • 10Helmholtz-Institut Mainz, Johannes Gutenberg-Universität, D-55099 Mainz, Germany
  • 11Institute of Modern Physics, 730000 Lanzhou, China

  • *ketela@uni-mainz.de

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Vol. 84, Iss. 1 — July 2011

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