Stefan Ulmer (physicist) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Stefan Ulmer (physicist)" in English language version.

refsWebsite

Global rank English rank

9doi.org

2^nd place

7worldcat.org

5^th place

7harvard.edu

18^th place

17^th place

7semanticscholar.org

11^th place

8^th place

3arxiv.org

69^th place

59^th place

3nih.gov

4^th place

2riken.jp

low place

2nature.com

234^th place

397^th place

1mpg.de

1,624^th place

1,592^nd place

1orcid.org

low place

1uni-heidelberg.de

1,681^st place

2,023^rd place

1springer.com

274^th place

309^th place

1iupap.org

low place

1home.cern

low place

1flairatfair.co.uk

low place

arxiv.org

Smorra, C.; Mooser, A.; Besirli, M.; Bohman, M.; Borchert, M. J.; Harrington, J.; Higuchi, T.; Nagahama, H.; Schneider, G. L.; Sellner, S.; Tanaka, T.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W. (2017-06-10). "Observation of individual spin quantum transitions of a single antiproton". Physics Letters B. 769: 1–6. arXiv:1703.07096. Bibcode:2017PhLB..769....1S. doi:10.1016/j.physletb.2017.03.024. ISSN 0370-2693. S2CID 119043861.
Smorra, C.; Stadnik, Y. V.; Blessing, P. E.; Bohman, M.; Borchert, M. J.; Devlin, J. A.; Erlewein, S.; Harrington, J. A.; Higuchi, T.; Mooser, A.; Schneider, G.; Wiesinger, M.; Wursten, E.; Blaum, K.; Matsuda, Y. (November 2019). "Direct limits on the interaction of antiprotons with axion-like dark matter". Nature. 575 (7782): 310–314. arXiv:2006.00255. Bibcode:2019Natur.575..310S. doi:10.1038/s41586-019-1727-9. ISSN 1476-4687. PMID 31723290. S2CID 207989920.
Devlin, Jack A.; Borchert, Matthias J.; Erlewein, Stefan; Fleck, Markus; Harrington, James A.; Latacz, Barbara; Warncke, Jan; Wursten, Elise; Bohman, Matthew A.; Mooser, Andreas H.; Smorra, Christian; Wiesinger, Markus; Will, Christian; Blaum, Klaus; Matsuda, Yasuyuki (2021-01-25). "Constraints on the Coupling between Axionlike Dark Matter and Photons Using an Antiproton Superconducting Tuned Detection Circuit in a Cryogenic Penning Trap". Physical Review Letters. 126 (4): 041301. arXiv:2101.11290. Bibcode:2021PhRvL.126d1301D. doi:10.1103/PhysRevLett.126.041301. S2CID 231719186.

doi.org

Ulmer, Stefan (2011). "First Observation of Spin Flips with a single Proton stored in a cryogenic Penning trap". archiv.ub.uni-heidelberg.de. doi:10.11588/heidok.00012306. Retrieved 2021-07-16.
Yamazaki, Yasunori; Ulmer, Stefan (2013). "CPT symmetry tests with cold and antihydrogen". Annalen der Physik. 525 (7): 493–504. doi:10.1002/andp.201300060. ISSN 1521-3889.
Kuroda, N.; Ulmer, S.; Murtagh, D. J.; Van Gorp, S.; Nagata, Y.; Diermaier, M.; Federmann, S.; Leali, M.; Malbrunot, C.; Mascagna, V.; Massiczek, O. (2015). "The ASACUSA CUSP: an antihydrogen experiment". Hyperfine Interactions. 235 (1–3): 13–20. Bibcode:2015HyInt.235...13K. doi:10.1007/s10751-015-1205-1. ISSN 0304-3843. S2CID 254548780.
Sellner, S; Besirli, M; Bohman, M; Borchert, M J; Harrington, J; Higuchi, T; Mooser, A; Nagahama, H; Schneider, G; Smorra, C; Tanaka, T; Blaum, K; Matsuda, Y; Ospelkaus, C; Quint, W (2017-08-31). "Improved limit on the directly measured antiproton lifetime". New Journal of Physics. 19 (8): 083023. Bibcode:2017NJPh...19h3023S. doi:10.1088/1367-2630/aa7e73. ISSN 1367-2630. S2CID 125095370.
Smorra, C.; Mooser, A.; Besirli, M.; Bohman, M.; Borchert, M. J.; Harrington, J.; Higuchi, T.; Nagahama, H.; Schneider, G. L.; Sellner, S.; Tanaka, T.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W. (2017-06-10). "Observation of individual spin quantum transitions of a single antiproton". Physics Letters B. 769: 1–6. arXiv:1703.07096. Bibcode:2017PhLB..769....1S. doi:10.1016/j.physletb.2017.03.024. ISSN 0370-2693. S2CID 119043861.
Smorra, C.; Sellner, S.; Borchert, M. J.; Harrington, J. A.; Higuchi, T.; Nagahama, H.; Tanaka, T.; Mooser, A.; Schneider, G.; Bohman, M.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J. (October 2017). "A parts-per-billion measurement of the antiproton magnetic moment". Nature. 550 (7676): 371–374. Bibcode:2017Natur.550..371S. doi:10.1038/nature24048. ISSN 1476-4687. PMID 29052625. S2CID 205260736.
Smorra, C.; Stadnik, Y. V.; Blessing, P. E.; Bohman, M.; Borchert, M. J.; Devlin, J. A.; Erlewein, S.; Harrington, J. A.; Higuchi, T.; Mooser, A.; Schneider, G.; Wiesinger, M.; Wursten, E.; Blaum, K.; Matsuda, Y. (November 2019). "Direct limits on the interaction of antiprotons with axion-like dark matter". Nature. 575 (7782): 310–314. arXiv:2006.00255. Bibcode:2019Natur.575..310S. doi:10.1038/s41586-019-1727-9. ISSN 1476-4687. PMID 31723290. S2CID 207989920.
Devlin, Jack A.; Borchert, Matthias J.; Erlewein, Stefan; Fleck, Markus; Harrington, James A.; Latacz, Barbara; Warncke, Jan; Wursten, Elise; Bohman, Matthew A.; Mooser, Andreas H.; Smorra, Christian; Wiesinger, Markus; Will, Christian; Blaum, Klaus; Matsuda, Yasuyuki (2021-01-25). "Constraints on the Coupling between Axionlike Dark Matter and Photons Using an Antiproton Superconducting Tuned Detection Circuit in a Cryogenic Penning Trap". Physical Review Letters. 126 (4): 041301. arXiv:2101.11290. Bibcode:2021PhRvL.126d1301D. doi:10.1103/PhysRevLett.126.041301. S2CID 231719186.
Borchert, M. J.; Devlin, J. A.; Erlewein, S. R.; Fleck, M.; Harrington, J. A.; Higuchi, T.; Latacz, B. M.; Voelksen, F.; Wursten, E. J.; Abbass, F.; Bohman, M. A.; Mooser, A. H.; Popper, D.; Wiesinger, M.; Will, C. (January 2022). "A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio". Nature. 601 (7891): 53–57. Bibcode:2022Natur.601...53B. doi:10.1038/s41586-021-04203-w. ISSN 1476-4687. PMID 34987217. S2CID 245709321.

flairatfair.co.uk

"FLAIR - News". Facility for Low-Energy Antiproton and Ion Research. Retrieved 2021-07-16.

harvard.edu

ui.adsabs.harvard.edu

Kuroda, N.; Ulmer, S.; Murtagh, D. J.; Van Gorp, S.; Nagata, Y.; Diermaier, M.; Federmann, S.; Leali, M.; Malbrunot, C.; Mascagna, V.; Massiczek, O. (2015). "The ASACUSA CUSP: an antihydrogen experiment". Hyperfine Interactions. 235 (1–3): 13–20. Bibcode:2015HyInt.235...13K. doi:10.1007/s10751-015-1205-1. ISSN 0304-3843. S2CID 254548780.
Sellner, S; Besirli, M; Bohman, M; Borchert, M J; Harrington, J; Higuchi, T; Mooser, A; Nagahama, H; Schneider, G; Smorra, C; Tanaka, T; Blaum, K; Matsuda, Y; Ospelkaus, C; Quint, W (2017-08-31). "Improved limit on the directly measured antiproton lifetime". New Journal of Physics. 19 (8): 083023. Bibcode:2017NJPh...19h3023S. doi:10.1088/1367-2630/aa7e73. ISSN 1367-2630. S2CID 125095370.
Smorra, C.; Mooser, A.; Besirli, M.; Bohman, M.; Borchert, M. J.; Harrington, J.; Higuchi, T.; Nagahama, H.; Schneider, G. L.; Sellner, S.; Tanaka, T.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W. (2017-06-10). "Observation of individual spin quantum transitions of a single antiproton". Physics Letters B. 769: 1–6. arXiv:1703.07096. Bibcode:2017PhLB..769....1S. doi:10.1016/j.physletb.2017.03.024. ISSN 0370-2693. S2CID 119043861.
Smorra, C.; Sellner, S.; Borchert, M. J.; Harrington, J. A.; Higuchi, T.; Nagahama, H.; Tanaka, T.; Mooser, A.; Schneider, G.; Bohman, M.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J. (October 2017). "A parts-per-billion measurement of the antiproton magnetic moment". Nature. 550 (7676): 371–374. Bibcode:2017Natur.550..371S. doi:10.1038/nature24048. ISSN 1476-4687. PMID 29052625. S2CID 205260736.
Smorra, C.; Stadnik, Y. V.; Blessing, P. E.; Bohman, M.; Borchert, M. J.; Devlin, J. A.; Erlewein, S.; Harrington, J. A.; Higuchi, T.; Mooser, A.; Schneider, G.; Wiesinger, M.; Wursten, E.; Blaum, K.; Matsuda, Y. (November 2019). "Direct limits on the interaction of antiprotons with axion-like dark matter". Nature. 575 (7782): 310–314. arXiv:2006.00255. Bibcode:2019Natur.575..310S. doi:10.1038/s41586-019-1727-9. ISSN 1476-4687. PMID 31723290. S2CID 207989920.
Devlin, Jack A.; Borchert, Matthias J.; Erlewein, Stefan; Fleck, Markus; Harrington, James A.; Latacz, Barbara; Warncke, Jan; Wursten, Elise; Bohman, Matthew A.; Mooser, Andreas H.; Smorra, Christian; Wiesinger, Markus; Will, Christian; Blaum, Klaus; Matsuda, Yasuyuki (2021-01-25). "Constraints on the Coupling between Axionlike Dark Matter and Photons Using an Antiproton Superconducting Tuned Detection Circuit in a Cryogenic Penning Trap". Physical Review Letters. 126 (4): 041301. arXiv:2101.11290. Bibcode:2021PhRvL.126d1301D. doi:10.1103/PhysRevLett.126.041301. S2CID 231719186.
Borchert, M. J.; Devlin, J. A.; Erlewein, S. R.; Fleck, M.; Harrington, J. A.; Higuchi, T.; Latacz, B. M.; Voelksen, F.; Wursten, E. J.; Abbass, F.; Bohman, M. A.; Mooser, A. H.; Popper, D.; Wiesinger, M.; Will, C. (January 2022). "A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio". Nature. 601 (7891): 53–57. Bibcode:2022Natur.601...53B. doi:10.1038/s41586-021-04203-w. ISSN 1476-4687. PMID 34987217. S2CID 245709321.

home.cern

"New chairs for the Antiproton Decelerator Users Community". CERN. Retrieved 2021-07-16.

iupap.org

iupap (2021-03-05). "C2: Awards - IUPAP: The International Union of Pure and Applied Physics". Retrieved 2021-07-16.

mpg.de

mpi-hd.mpg.de

Symmetries, Max Planck-RIKEN-PTB Center for Time, Constants and Fundamental. "Max Planck-RIKEN-PTB Center for Time, Constants and Fundamental Symmetries - Group of Stefan Ulmer". www.mpi-hd.mpg.de. Retrieved 2021-07-15.{{cite web}}: CS1 maint: multiple names: authors list (link)

nature.com

Smorra, C.; Stadnik, Y. V.; Blessing, P. E.; Bohman, M.; Borchert, M. J.; Devlin, J. A.; Erlewein, S.; Harrington, J. A.; Higuchi, T.; Mooser, A.; Schneider, G.; Wiesinger, M.; Wursten, E.; Blaum, K.; Matsuda, Y. (November 2019). "Direct limits on the interaction of antiprotons with axion-like dark matter". Nature. 575 (7782): 310–314. arXiv:2006.00255. Bibcode:2019Natur.575..310S. doi:10.1038/s41586-019-1727-9. ISSN 1476-4687. PMID 31723290. S2CID 207989920.
Borchert, M. J.; Devlin, J. A.; Erlewein, S. R.; Fleck, M.; Harrington, J. A.; Higuchi, T.; Latacz, B. M.; Voelksen, F.; Wursten, E. J.; Abbass, F.; Bohman, M. A.; Mooser, A. H.; Popper, D.; Wiesinger, M.; Will, C. (January 2022). "A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio". Nature. 601 (7891): 53–57. Bibcode:2022Natur.601...53B. doi:10.1038/s41586-021-04203-w. ISSN 1476-4687. PMID 34987217. S2CID 245709321.

nih.gov

pubmed.ncbi.nlm.nih.gov

Smorra, C.; Sellner, S.; Borchert, M. J.; Harrington, J. A.; Higuchi, T.; Nagahama, H.; Tanaka, T.; Mooser, A.; Schneider, G.; Bohman, M.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J. (October 2017). "A parts-per-billion measurement of the antiproton magnetic moment". Nature. 550 (7676): 371–374. Bibcode:2017Natur.550..371S. doi:10.1038/nature24048. ISSN 1476-4687. PMID 29052625. S2CID 205260736.
Smorra, C.; Stadnik, Y. V.; Blessing, P. E.; Bohman, M.; Borchert, M. J.; Devlin, J. A.; Erlewein, S.; Harrington, J. A.; Higuchi, T.; Mooser, A.; Schneider, G.; Wiesinger, M.; Wursten, E.; Blaum, K.; Matsuda, Y. (November 2019). "Direct limits on the interaction of antiprotons with axion-like dark matter". Nature. 575 (7782): 310–314. arXiv:2006.00255. Bibcode:2019Natur.575..310S. doi:10.1038/s41586-019-1727-9. ISSN 1476-4687. PMID 31723290. S2CID 207989920.
Borchert, M. J.; Devlin, J. A.; Erlewein, S. R.; Fleck, M.; Harrington, J. A.; Higuchi, T.; Latacz, B. M.; Voelksen, F.; Wursten, E. J.; Abbass, F.; Bohman, M. A.; Mooser, A. H.; Popper, D.; Wiesinger, M.; Will, C. (January 2022). "A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio". Nature. 601 (7891): 53–57. Bibcode:2022Natur.601...53B. doi:10.1038/s41586-021-04203-w. ISSN 1476-4687. PMID 34987217. S2CID 245709321.

orcid.org

ORCID. "Stefan Ulmer (0000-0002-4185-4147)". orcid.org. Retrieved 2021-07-15.

riken.jp

ulmerfsl.riken.jp

Ulmer, Dr Stefan. "Ulmer Fundamental Symmetries Laboratory". ulmerfsl.riken.jp. Retrieved 2021-07-15.
Ulmer, Dr Stefan. "Research Topics | Ulmer Fundamental Symmetries Laboratory". ulmerfsl.riken.jp. Retrieved 2021-07-16.

semanticscholar.org

api.semanticscholar.org

Kuroda, N.; Ulmer, S.; Murtagh, D. J.; Van Gorp, S.; Nagata, Y.; Diermaier, M.; Federmann, S.; Leali, M.; Malbrunot, C.; Mascagna, V.; Massiczek, O. (2015). "The ASACUSA CUSP: an antihydrogen experiment". Hyperfine Interactions. 235 (1–3): 13–20. Bibcode:2015HyInt.235...13K. doi:10.1007/s10751-015-1205-1. ISSN 0304-3843. S2CID 254548780.
Sellner, S; Besirli, M; Bohman, M; Borchert, M J; Harrington, J; Higuchi, T; Mooser, A; Nagahama, H; Schneider, G; Smorra, C; Tanaka, T; Blaum, K; Matsuda, Y; Ospelkaus, C; Quint, W (2017-08-31). "Improved limit on the directly measured antiproton lifetime". New Journal of Physics. 19 (8): 083023. Bibcode:2017NJPh...19h3023S. doi:10.1088/1367-2630/aa7e73. ISSN 1367-2630. S2CID 125095370.
Smorra, C.; Mooser, A.; Besirli, M.; Bohman, M.; Borchert, M. J.; Harrington, J.; Higuchi, T.; Nagahama, H.; Schneider, G. L.; Sellner, S.; Tanaka, T.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W. (2017-06-10). "Observation of individual spin quantum transitions of a single antiproton". Physics Letters B. 769: 1–6. arXiv:1703.07096. Bibcode:2017PhLB..769....1S. doi:10.1016/j.physletb.2017.03.024. ISSN 0370-2693. S2CID 119043861.
Smorra, C.; Sellner, S.; Borchert, M. J.; Harrington, J. A.; Higuchi, T.; Nagahama, H.; Tanaka, T.; Mooser, A.; Schneider, G.; Bohman, M.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J. (October 2017). "A parts-per-billion measurement of the antiproton magnetic moment". Nature. 550 (7676): 371–374. Bibcode:2017Natur.550..371S. doi:10.1038/nature24048. ISSN 1476-4687. PMID 29052625. S2CID 205260736.
Smorra, C.; Stadnik, Y. V.; Blessing, P. E.; Bohman, M.; Borchert, M. J.; Devlin, J. A.; Erlewein, S.; Harrington, J. A.; Higuchi, T.; Mooser, A.; Schneider, G.; Wiesinger, M.; Wursten, E.; Blaum, K.; Matsuda, Y. (November 2019). "Direct limits on the interaction of antiprotons with axion-like dark matter". Nature. 575 (7782): 310–314. arXiv:2006.00255. Bibcode:2019Natur.575..310S. doi:10.1038/s41586-019-1727-9. ISSN 1476-4687. PMID 31723290. S2CID 207989920.
Devlin, Jack A.; Borchert, Matthias J.; Erlewein, Stefan; Fleck, Markus; Harrington, James A.; Latacz, Barbara; Warncke, Jan; Wursten, Elise; Bohman, Matthew A.; Mooser, Andreas H.; Smorra, Christian; Wiesinger, Markus; Will, Christian; Blaum, Klaus; Matsuda, Yasuyuki (2021-01-25). "Constraints on the Coupling between Axionlike Dark Matter and Photons Using an Antiproton Superconducting Tuned Detection Circuit in a Cryogenic Penning Trap". Physical Review Letters. 126 (4): 041301. arXiv:2101.11290. Bibcode:2021PhRvL.126d1301D. doi:10.1103/PhysRevLett.126.041301. S2CID 231719186.
Borchert, M. J.; Devlin, J. A.; Erlewein, S. R.; Fleck, M.; Harrington, J. A.; Higuchi, T.; Latacz, B. M.; Voelksen, F.; Wursten, E. J.; Abbass, F.; Bohman, M. A.; Mooser, A. H.; Popper, D.; Wiesinger, M.; Will, C. (January 2022). "A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio". Nature. 601 (7891): 53–57. Bibcode:2022Natur.601...53B. doi:10.1038/s41586-021-04203-w. ISSN 1476-4687. PMID 34987217. S2CID 245709321.

springer.com

link.springer.com

Kuroda, N.; Ulmer, S.; Murtagh, D. J.; Van Gorp, S.; Nagata, Y.; Diermaier, M.; Federmann, S.; Leali, M.; Malbrunot, C.; Mascagna, V.; Massiczek, O. (2015). "The ASACUSA CUSP: an antihydrogen experiment". Hyperfine Interactions. 235 (1–3): 13–20. Bibcode:2015HyInt.235...13K. doi:10.1007/s10751-015-1205-1. ISSN 0304-3843. S2CID 254548780.

uni-heidelberg.de

archiv.ub.uni-heidelberg.de

Ulmer, Stefan (2011). "First Observation of Spin Flips with a single Proton stored in a cryogenic Penning trap". archiv.ub.uni-heidelberg.de. doi:10.11588/heidok.00012306. Retrieved 2021-07-16.

worldcat.org

search.worldcat.org

Yamazaki, Yasunori; Ulmer, Stefan (2013). "CPT symmetry tests with cold and antihydrogen". Annalen der Physik. 525 (7): 493–504. doi:10.1002/andp.201300060. ISSN 1521-3889.
Kuroda, N.; Ulmer, S.; Murtagh, D. J.; Van Gorp, S.; Nagata, Y.; Diermaier, M.; Federmann, S.; Leali, M.; Malbrunot, C.; Mascagna, V.; Massiczek, O. (2015). "The ASACUSA CUSP: an antihydrogen experiment". Hyperfine Interactions. 235 (1–3): 13–20. Bibcode:2015HyInt.235...13K. doi:10.1007/s10751-015-1205-1. ISSN 0304-3843. S2CID 254548780.
Sellner, S; Besirli, M; Bohman, M; Borchert, M J; Harrington, J; Higuchi, T; Mooser, A; Nagahama, H; Schneider, G; Smorra, C; Tanaka, T; Blaum, K; Matsuda, Y; Ospelkaus, C; Quint, W (2017-08-31). "Improved limit on the directly measured antiproton lifetime". New Journal of Physics. 19 (8): 083023. Bibcode:2017NJPh...19h3023S. doi:10.1088/1367-2630/aa7e73. ISSN 1367-2630. S2CID 125095370.
Smorra, C.; Mooser, A.; Besirli, M.; Bohman, M.; Borchert, M. J.; Harrington, J.; Higuchi, T.; Nagahama, H.; Schneider, G. L.; Sellner, S.; Tanaka, T.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W. (2017-06-10). "Observation of individual spin quantum transitions of a single antiproton". Physics Letters B. 769: 1–6. arXiv:1703.07096. Bibcode:2017PhLB..769....1S. doi:10.1016/j.physletb.2017.03.024. ISSN 0370-2693. S2CID 119043861.
Smorra, C.; Sellner, S.; Borchert, M. J.; Harrington, J. A.; Higuchi, T.; Nagahama, H.; Tanaka, T.; Mooser, A.; Schneider, G.; Bohman, M.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J. (October 2017). "A parts-per-billion measurement of the antiproton magnetic moment". Nature. 550 (7676): 371–374. Bibcode:2017Natur.550..371S. doi:10.1038/nature24048. ISSN 1476-4687. PMID 29052625. S2CID 205260736.
Smorra, C.; Stadnik, Y. V.; Blessing, P. E.; Bohman, M.; Borchert, M. J.; Devlin, J. A.; Erlewein, S.; Harrington, J. A.; Higuchi, T.; Mooser, A.; Schneider, G.; Wiesinger, M.; Wursten, E.; Blaum, K.; Matsuda, Y. (November 2019). "Direct limits on the interaction of antiprotons with axion-like dark matter". Nature. 575 (7782): 310–314. arXiv:2006.00255. Bibcode:2019Natur.575..310S. doi:10.1038/s41586-019-1727-9. ISSN 1476-4687. PMID 31723290. S2CID 207989920.
Borchert, M. J.; Devlin, J. A.; Erlewein, S. R.; Fleck, M.; Harrington, J. A.; Higuchi, T.; Latacz, B. M.; Voelksen, F.; Wursten, E. J.; Abbass, F.; Bohman, M. A.; Mooser, A. H.; Popper, D.; Wiesinger, M.; Will, C. (January 2022). "A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio". Nature. 601 (7891): 53–57. Bibcode:2022Natur.601...53B. doi:10.1038/s41586-021-04203-w. ISSN 1476-4687. PMID 34987217. S2CID 245709321.