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A new determination of the 4 He and 3 He masses in a Penning trap

  • T. Fritioff
  • C. Carlberg
  • G. Douysset
  • R. Schuch
  • I. Bergström

Abstract:

The atomic and nuclear masses of 4He and 3He have been measured using doubly charged ions in a Penning trap connected to an electron beam ion source. Recent technical improvements allow mass determinations with uncertainties of a few parts in 1010. The obtained atomic masses are 4.002 603 256 8(13) u and 3.016 029 323 5(28) u respectively. These values deviate by as much as 5 standard deviations from the accepted values.

PACS. 32.10.Bi Atomic masses, mass spectra, abundances, and isotopes – 27.10.+h A? 5– 21.10.Dr Binding energies and masses 

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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2001

Authors and Affiliations

  • T. Fritioff
    • 1
  • C. Carlberg
    • 1
  • G. Douysset
    • 1
  • R. Schuch
    • 1
  • I. Bergström
    • 2
  1. 1.Atomic Physics, Stockholm University, Frescativägen 24, 10405 Stockholm, SwedenSE
  2. 2.Manne Siegbahn Laboratory, Frescativägen 24, 10405 Stockholm, SwedenSE

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