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Determination of the proton mass from a measurement of the cyclotron frequencies of D+ and H2+ in a Penning trap
Stockholms universitet, Fysikum. (Atomfysik)
Stockholms universitet, Manne Siegbahn-laboratoriet.
Stockholms universitet, Fysikum.
Stockholms universitet, Fysikum. (Atomfysik)
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2008 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 78, no 1, 2514-2520 p.Article in journal (Refereed) Published
Abstract [en]

Wedetermine the cyclotron frequency ratio of H2+ and D+, applyingthe two-pulse Ramsey-excitation technique in the Penning-trap mass spectrometer SMILETRAP.The final result, based on probing more than 100 000 ions,is a frequency ratio of 0.999 231 659 33(17). Using a value ofthe D+ mass recently measured by the Seattle group, weobtain so far the most precise experimental H2+ mass valueof 2.015 101 497 16(34) u. From this value a proton mass valueof 1.007 276 466 95(18) u (0.18 ppb relative uncertainty) could be derived,in good agreement with the value of 1.007 276 466 89(14) u publishedby Van Dyck et al.

Place, publisher, year, edition, pages
Maryland, USA: American Physical Society , 2008. Vol. 78, no 1, 2514-2520 p.
Keyword [en]
atomic mass, deuterium, hydrogen ions, mass spectra, mass spectroscopy, particle traps, protons
National Category
Atom and Molecular Physics and Optics
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-218626DOI: 10.1103/PhysRevA.78.012514ISI: 000258180300118OAI: oai:DiVA.org:uu-218626DiVA: diva2:696360
Available from: 2009-08-26 Created: 2014-02-13 Last updated: 2017-12-06Bibliographically approved

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Solders, AndreasSuhonen, MarkusSchuch, Reinhold

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