An experiment for the direct determination of the g-factor of a single proton in a Penning trap
A new apparatus has been designed that aims at a direct precision measurement of the g -factor of a single isolated proton or antiproton in a Penning trap. We present a thorough discussion on the trap design and a method for the experimental trap optimization using a single stored proton. A first at...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
12 June 2012
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| In: |
New journal of physics
Year: 2012, Volume: 14, Issue: 6 |
| ISSN: | 1367-2630 |
| DOI: | 10.1088/1367-2630/14/6/063011 |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1088/1367-2630/14/6/063011 Verlag, kostenfrei, Volltext: http://stacks.iop.org/1367-2630/14/i=6/a=063011 
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| Author Notes: | C.C. Rodegheri, K. Blaum, H. Kracke, S. Kreim, A. Mooser, W. Quint, S. Ulmer and J. Walz |
| Summary: | A new apparatus has been designed that aims at a direct precision measurement of the g -factor of a single isolated proton or antiproton in a Penning trap. We present a thorough discussion on the trap design and a method for the experimental trap optimization using a single stored proton. A first attempt at the g -factor determination has been made in a section of the trap with a magnetic bottle. The Larmor frequency of the proton has been measured with a relative uncertainty of 1.8 × 10 −6 and the magnetic moment has been determined with a relative uncertainty of 8.9 × 10 −6 . A g -factor of 5.585 696(50) has been obtained, which is in excellent agreement with previous measurements and predictions. Future experiments shall drive the spin-flip transition in a section of the trap with a homogeneous magnetic field. This has the potential to improve the precision of the measured g -factor of the proton and the antiproton by several orders of magnitude. |
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| Item Description: | Gesehen am 18.07.2018 Im Titel ist "g" in g-factor kursiv geschrieben |
| Physical Description: | Online Resource |
| ISSN: | 1367-2630 |
| DOI: | 10.1088/1367-2630/14/6/063011 |