STEP: Symmetry Tests in Experiments with Portable antiprotons
Goals:
- Development of transportable antiproton traps for precision experiments
- Developing methods improving antiproton precision measurements
- See the report of our technical design: Link to arXiv
g-factor proton / BASE-Mainz experiment:
Goals:
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- Development of sympathetic cooling methods for protons and antiprotons
- Measuring the proton g-factor with highest precision
- Development of sympathetic cooling methods for protons and antiprotons
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Recent experimental results:
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- Cooling of a single trapped proton using laser-cooled beryllium ions in a distant trap:
Our first demonstration of the sympathetic cooling method
- Cooling of a single trapped proton using laser-cooled beryllium ions in a distant trap:
The BASE experiment at CERN:
(see also: BASE Collaboration web page, RIKEN FSL web page)
Recent experimental results:
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- High-precision measurements of the antiproton magnetic moment
The most precise measurement with 1.5 ppb uncertainty - Antiproton dark matter searches
First direct limits on axion-antiproton coupling - High-precision comparison of the proton and antiproton charge-to-mass ratio
Our first measurement with 69 ppt uncertainty - Antiproton lifetime studies
See this article for details
- High-precision measurements of the antiproton magnetic moment