350-fold improved measurement of the antiproton magnetic moment using a multi-trap method

Originalpublikation

Smorra, C.; Blessing, P.E.; Borchert, M.J.; Devlin, J.A.; Harrington, J.A. et al.: 350-fold improved measurement of the antiproton magnetic moment using a multi-trap method. In: Hyperfine Interactions 239 (2018), Nr. 1, 47. DOI: https://doi.org/10.1007/s10751-018-1507-1

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Zusammenfassung:
We summarize our recent 1.5 parts per billion measurement of the antiproton magnetic moment using the multi Penning-trap system of the BASE collaboration. The result was achieved by combining the detection of individual spin-transitions of a single antiproton with a novel two-particle spectroscopy technique, which dramatically improved the data sampling rate. This measurement contributes to improve the test of the fundamental charge, parity, time reversal (CPT) invariance in the baryon sector by a factor of 350 compared to our last measurement, and by a factor of 3000 compared to the best competing measurement. We review the measurement technique and discuss the improved limits on CPT-violating physics imposed by this measurement.
Lizenzbestimmungen: CC BY 4.0 Unported - https://creativecommons.org/licenses/by/4.0/
Publikationstyp: Article
Publikationsstatus: publishedVersion
Erstveröffentlichung: 2018
Schlagwörter (englisch): Antiproton, CPT invariance, Fundamental symmetries and interactions, Magnetic moments, Penning trap, Standard model
Fachliche Zuordnung (DDC): 530 | Physik

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