E. Wursten, M. Borchert, J. Devlin, S. Erlewein, M. Fleck, J. Harrington, J. I. Jager, B. Latacz, P. Micke, G. Umbrazunas, F. Abbass, M. Bohman, S. Kommu, D. Popper, M. Wiesinger, C. Will, H. Yildiz, K. Blaum, Y. Matsuda, A. Mooser, C. Ospelkaus, A. Soter, W. Quint, J. Walz, Y. Yamazaki, C. Smorra, S. Ulmer
{"title":"Testing CPT Invariance by High-Precision Comparisons of Fundamental Properties of Protons and Antiprotons at BASE","authors":"E. Wursten, M. Borchert, J. Devlin, S. Erlewein, M. Fleck, J. Harrington, J. I. Jager, B. Latacz, P. Micke, G. Umbrazunas, F. Abbass, M. Bohman, S. Kommu, D. Popper, M. Wiesinger, C. Will, H. Yildiz, K. Blaum, Y. Matsuda, A. Mooser, C. Ospelkaus, A. Soter, W. Quint, J. Walz, Y. Yamazaki, C. Smorra, S. Ulmer","doi":"10.1142/9789811275388_0001","DOIUrl":null,"url":null,"abstract":"The BASE collaboration at the Antiproton Decelerator facility of CERN compares the fundamental properties of protons and antiprotons using advanced Penning-trap systems. In previous measurement campaigns, we measured the magnetic moments of the proton and the antiproton, reaching (sub-)parts-in-a-billion fractional uncertainty. In the latest campaign, we have compared the proton and antiproton charge-to-mass ratios with a fractional uncertainty of 16 parts in a trillion. In this contribution, we give an overview of the measurement campaign, and detail how its results are used to constrain nine spin-independent coefficients of the Standard-Model Extension in the proton and electron sector.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"CPT and Lorentz Symmetry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1142/9789811275388_0001","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The BASE collaboration at the Antiproton Decelerator facility of CERN compares the fundamental properties of protons and antiprotons using advanced Penning-trap systems. In previous measurement campaigns, we measured the magnetic moments of the proton and the antiproton, reaching (sub-)parts-in-a-billion fractional uncertainty. In the latest campaign, we have compared the proton and antiproton charge-to-mass ratios with a fractional uncertainty of 16 parts in a trillion. In this contribution, we give an overview of the measurement campaign, and detail how its results are used to constrain nine spin-independent coefficients of the Standard-Model Extension in the proton and electron sector.
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