Springer - The Electron Mass And Calcium Isotope Shifts (2017 EN)

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    Author: Florian Köhler-Langes
    Full Title: The Electron Mass And Calcium Isotope Shifts: High-Precision Measurements Of Bound-Electron g-Factors Of Highly Charged Ions
    Publisher: Springer; 1st ed. 2017 edition (3 Jan. 2017)
    Year: 2017
    ISBN-13: 9783319508771 (978-3-319-50877-1), 9783319508764 (978-3-319-50876-4)
    ISBN-10: 3319508776, 3319508768
    Pages: 168
    Language: English
    Genre: Physics: Particle and Nuclear Physics
    File type: EPUB (True)
    Quality: 10/10
    Price: 103.99 €

    This thesis presents the first isotope-shift measurement of bound-electron g-factors of highly charged ions and determines the most precise value of the electron mass in atomic mass units, which exceeds the value in the literature by a factor of 13. As the lightest fundamental massive particle, the electron is one of nature’s few central building blocks. A precise knowledge of its intrinsic properties, such as its mass, is mandatory for the most accurate tests in physics - the Quantum Electrodynamics tests that describe one of the four established fundamental interactions in the universe. The underlying measurement principle combines a high-precision measurement of the Larmor-to-cyclotron frequency ratio on a single hydrogen-like carbon ion studied in a Penning trap with very accurate calculations of the so-called bound-electron g-factor. For the isotope-shift measurement, the bound-electron g-factors of two lithium-like calcium isotopes have been measured with relative uncertainties of a few 10^{-10}, constituting an as yet unrivaled level of precision for lithium-like ions.

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