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High-precision comparison of the antiproton-to-proton charge-to-mass ratio

The CPT theorem (the assumption that physical laws are invariant under simultaneous charge conjugation, parity transformation and time reversal) is central to the standard model of particle physics; here the charge-to-mass ratio of the antiproton is compared to that of the proton, with a precision o...

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Main Authors: Ulmer, Stefan (Author) , Smorra, Christian (Author) , Mooser, Andreas (Author) , Franke, Karsten (Author) , Nagahama, H. (Author) , Schneider, G. (Author) , Higuchi, T. (Author) , Gorp, S.van (Author) , Blaum, Klaus (Author) , Matsuda, Yuki (Author) , Quint, Wolfgang (Author) , Walz, J. (Author) , Yamazaki, Yasunori (Author)
Format: Article (Journal)
Language:English
Published: 3 August 2015
In: Nature
Year: 2015, Volume: 524, Issue: 7564, Pages: 196-199
ISSN:1476-4687
DOI:10.1038/nature14861
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1038/nature14861
Verlag, lizenzpflichtig, Volltext: https://www.nature.com/articles/nature14861
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Author Notes:S. Ulmer, C. Smorra, A. Mooser, K. Franke, H. Nagahama, G. Schneider, T. Higuchi, S. Van Gorp, K. Blaum, Y. Matsuda, W. Quint, J. Walz, & Y. Yamazaki
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Summary:The CPT theorem (the assumption that physical laws are invariant under simultaneous charge conjugation, parity transformation and time reversal) is central to the standard model of particle physics; here the charge-to-mass ratio of the antiproton is compared to that of the proton, with a precision of 69 parts per trillion, and the result supports the CPT theorem at the atto-electronvolt scale.
Item Description:Gesehen am 07.07.2020
Physical Description:Online Resource
ISSN:1476-4687
DOI:10.1038/nature14861

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