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The Electron Mass and Calcium Isotope Shifts

High-Precision Measurements of Bound-Electron g-Factors of Highly Charged Ions

  • Book
  • © 2017

Overview

Authors:
  1. Florian Köhler-Langes

    1. Department of Stored and Cooled Ions, Max-Planck-Institut für Kernphysik , Heidelberg, Germany

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  • Nominated as an outstanding PhD thesis by the GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany and the AMOP section of the DPG
  • Offers an introduction to bound-electron g-factor physics
  • Includes a comprehensive description of state-of-the-art, high-precision frequency detection techniques on single ions in Penning traps
  • Provides a detailed explanation of the most precise determination of the atomic electron mass
  • Includes supplementary material: sn.pub/extras

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (7 chapters)

  1. Front Matter

    Pages i-xiv
    Download chapter PDF

  2. Introduction

    • Florian Köhler-Langes
    Pages 1-4

  3. The g-Factor - Exploring Atomic Structure and Fundamental Constants

    • Florian Köhler-Langes
    Pages 5-32

  4. Penning Trap Physics

    • Florian Köhler-Langes
    Pages 33-74

  5. Towards the Measurement of the Larmor-to-Cyclotron Frequency Ratio

    • Florian Köhler-Langes
    Pages 75-116

  6. Determination of the Atomic Mass of the Electron

    • Florian Köhler-Langes
    Pages 117-133

  7. Probing the Isotope Shift: \(\varDelta g=g({}^{40}\mathrm{Ca}^{17+})-g(^{48}\mathrm{Ca}^{17+})\)

    • Florian Köhler-Langes
    Pages 135-145

  8. Outlook - A New Generation of High-Precision Penning Trap

    • Florian Köhler-Langes
    Pages 147-165

  9. Back Matter

    Pages 167-168
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Keywords

About this book

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.
 


Authors and Affiliations

  • Department of Stored and Cooled Ions, Max-Planck-Institut für Kernphysik , Heidelberg, Germany

    Florian Köhler-Langes

About the author

2005-2011: Study of physics in Göttingen with stopovers at CERN and the University Claude Bernard Lyon 1. 2011: Diploma in high-energy physics, title: "Performance Study of a Diamond Pixel Detector Prototype for Future ATLAS Upgrades."
2011: Scientist at the Max Planck Institute for Dynamics and Self-Organization, topic: Installation of an experimental setup for the analysis of high turbulences.


2011-2015: PhD student at the GSI Helmholtz Centre for Heavy Ion Research. Since 2015 postdoc at the Max Planck Institute for Nuclear Physics, topic: Installation of a new experimental setup for the most precise determination of the atomic proton and neutron mass.

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