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A 16-parts-per-trillion measurement of the antiproton-to-proton charge-mass ratio.
Borchert MJ, Devlin JA, Erlewein SR, Fleck M, Harrington JA, Higuchi T, Latacz BM, Voelksen F, Wursten EJ, Abbass F, Bohman MA, Mooser AH, Popper D, Wiesinger M, Will C, Blaum K, Matsuda Y, Ospelkaus C, Quint W, Walz J, Yamazaki Y, Smorra C, Ulmer S. Borchert MJ, et al. Among authors: ulmer s. Nature. 2022 Jan;601(7891):53-57. doi: 10.1038/s41586-021-04203-w. Epub 2022 Jan 5. Nature. 2022. PMID: 34987217
Observation of spin flips with a single trapped proton.
Ulmer S, Rodegheri CC, Blaum K, Kracke H, Mooser A, Quint W, Walz J. Ulmer S, et al. Phys Rev Lett. 2011 Jun 24;106(25):253001. doi: 10.1103/PhysRevLett.106.253001. Epub 2011 Jun 20. Phys Rev Lett. 2011. PMID: 21770638
A source of antihydrogen for in-flight hyperfine spectroscopy.
Kuroda N, Ulmer S, Murtagh DJ, Van Gorp S, Nagata Y, Diermaier M, Federmann S, Leali M, Malbrunot C, Mascagna V, Massiczek O, Michishio K, Mizutani T, Mohri A, Nagahama H, Ohtsuka M, Radics B, Sakurai S, Sauerzopf C, Suzuki K, Tajima M, Torii HA, Venturelli L, Wünschek B, Zmeskal J, Zurlo N, Higaki H, Kanai Y, Lodi Rizzini E, Nagashima Y, Matsuda Y, Widmann E, Yamazaki Y. Kuroda N, et al. Among authors: ulmer s. Nat Commun. 2014;5:3089. doi: 10.1038/ncomms4089. Nat Commun. 2014. PMID: 24448273 Free PMC article.
Resolution of single spin flips of a single proton.
Mooser A, Kracke H, Blaum K, Bräuninger SA, Franke K, Leiteritz C, Quint W, Rodegheri CC, Ulmer S, Walz J. Mooser A, et al. Among authors: ulmer s. Phys Rev Lett. 2013 Apr 5;110(14):140405. doi: 10.1103/PhysRevLett.110.140405. Epub 2013 Apr 4. Phys Rev Lett. 2013. PMID: 25166966
Highly sensitive superconducting circuits at ∼700 kHz with tunable quality factors for image-current detection of single trapped antiprotons.
Nagahama H, Schneider G, Mooser A, Smorra C, Sellner S, Harrington J, Higuchi T, Borchert M, Tanaka T, Besirli M, Blaum K, Matsuda Y, Ospelkaus C, Quint W, Walz J, Yamazaki Y, Ulmer S. Nagahama H, et al. Among authors: ulmer s. Rev Sci Instrum. 2016 Nov;87(11):113305. doi: 10.1063/1.4967493. Rev Sci Instrum. 2016. PMID: 27910537
Sixfold improved single particle measurement of the magnetic moment of the antiproton.
Nagahama H, Smorra C, Sellner S, Harrington J, Higuchi T, Borchert MJ, Tanaka T, Besirli M, Mooser A, Schneider G, Blaum K, Matsuda Y, Ospelkaus C, Quint W, Walz J, Yamazaki Y, Ulmer S. Nagahama H, et al. Among authors: ulmer s. Nat Commun. 2017 Jan 18;8:14084. doi: 10.1038/ncomms14084. Nat Commun. 2017. PMID: 28098156 Free PMC article.
108 results