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  Precision Measurements of the Fundamental Properties of the Proton and Antiproton

Smorra, C., & Mooser, A. (2020). Precision Measurements of the Fundamental Properties of the Proton and Antiproton. Journal of Physics: Conference Series, 1412: 032001. doi:10.1088/1742-6596/1412/3/032001.

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 Creators:
Smorra, C.1, Author              
Mooser, A.1, Author              
Affiliations:
1Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              

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 MPINP: Präzisionsexperimente - Abteilung Blaum
 Abstract: Precision measurements comparing the fundamental properties of conjugate particles and antiparticles constitute stringent tests of CPT invariance. We review recent precision measurements of the BASE collaboration, which improved the uncertainty of the proton and antiproton magnetic moments and the comparison of the proton-to-antiproton charge-to-mass ratio. These measurements constitute the most stringent tests of CPT invariance with antiprotons. Further, we discuss the improved limit on the antiproton lifetime based on the storage of a cloud of antiprotons in the unique BASE reservoir trap. Based on these recent advances, we discuss ongoing technical developments which comprise a coupling trap for the sympathetic cooling of single (anti-)protons with laser-cooled beryllium ions, a transportable trap to relocate antiproton measurements into a high-precision laboratory, and a new experiment to measure the magnetic moment of helium-3 ions, which will improve absolute precision magnetometry.

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 Dates: 2020
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1088/1742-6596/1412/3/032001
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Title: 31st International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC)
Place of Event: Deauville, FRANCE
Start-/End Date: 2019-07-23 - 2019-07-30

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Title: Journal of Physics: Conference Series
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 1412 Sequence Number: 032001 Start / End Page: - Identifier: ISSN: 1742-6588
CoNE: https://pure.mpg.de/cone/journals/resource/111097776606042