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Proton Structure from the Measurement of 2S-2P Transition Frequencies of Muonic Hydrogen

Antognini, Aldo and Nez, Francois and Schuhmann, Karsten and Amaro, Fernando and Biraben, Francois and Cardoso, Joao and Covita, Daniel and Dax, Andreas and Dhawan, Satish and Diepold, Marc and Fernandes, Luis and Giesen, Adolf and Gouvea, Andrea and Graf, Thomas and Hänsch, Theodor and Indelicato, Paul and Julien, Lucile and Kao, Cheng-Yang and Knowles, Paul and Kottmann, Franz and Le Bigot, Eric and Liu, Yi-Wei and Lopes, Jose and Luhova, Livia and Monteiro, Christina and Mulhauser, Francoise and Nebel, Tobias and Rabinowitz, Paul and dos Santos, Joaquim and Schaller, Lukas and Schwob, Catherine and Taqqu, David and Veloso, Joao and Vogelsang, Jan and Pohl, Randolf (2013) Proton Structure from the Measurement of 2S-2P Transition Frequencies of Muonic Hydrogen. Science, 339 (6118), pp. 417-420. American Association for the Advancement of Science (AAAS). doi: 10.1126/science.1230016 . ISSN 0036-8075.

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Accurate knowledge of the charge and Zemach radii of the proton is essential, not only for understanding its structure but also as input for tests of bound-state quantum electrodynamics and its predictions for the energy levels of hydrogen. These radii may be extracted from the laser spectroscopy of muonic hydrogen (μp, that is, a proton orbited by a muon). We measured the 2S^F=0_1/2 - 2P^F=1_3/2 transition frequency in μp to be 54611.16(1.05) gigahertz (numbers in parentheses indicate one standard deviation of uncertainty) and reevaluated the 2S^F=1_1/2 - 2P^F=2_3/2 transition frequency, yielding 49881.35(65) gigahertz. From the measurements, we determined the Zemach radius, rZ = 1.082(37) femtometers, and the magnetic radius, rM = 0.87(6) femtometer, of the proton. We also extracted the charge radius, rE = 0.84087(39) femtometer, with an order of magnitude more precision than the 2010-CODATA value and at 7σ variance with respect to it, thus reinforcing the proton radius puzzle.

Item URL in elib:https://elib.dlr.de/81085/
Document Type:Article
Title:Proton Structure from the Measurement of 2S-2P Transition Frequencies of Muonic Hydrogen
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Antognini, AldoMax-Planck-Institut für QuantenoptikUNSPECIFIED
Nez, FrancoisLaboratoire Kastler BrosselUNSPECIFIED
Schuhmann, KarstenTechnologiegesellschaft für StrahlwerkzeugeUNSPECIFIED
Amaro, FernandoUniversidade de CoimbraUNSPECIFIED
Biraben, FrancoisLaboratoire Kastler BrosselUNSPECIFIED
Cardoso, JoaoDepartamento de Física, Universidade de CoimbraUNSPECIFIED
Covita, DanielDepartamento de Física, Universidade de CoimbraUNSPECIFIED
Dax, AndreasPhysics Department, Yale UniversityUNSPECIFIED
Dhawan, SatishPhysics Department, Yale UniversityUNSPECIFIED
Diepold, MarcMax-Planck-Institut für QuantenoptikUNSPECIFIED
Fernandes, LuisDepartamento de Física, Universidade de CoimbraUNSPECIFIED
Giesen, AdolfAdolf.Giesen (at) dlr.deUNSPECIFIED
Gouvea, AndreaDepartamento de Física, Universidade de CoimbraUNSPECIFIED
Graf, ThomasInstitut für Strahlwerkzeuge, Universität StuttgartUNSPECIFIED
Hänsch, TheodorMax Plank Institut für QuantenoptikUNSPECIFIED
Indelicato, PaulLaboratoire Kastler BrosselUNSPECIFIED
Julien, LucileLaboratoire Kastler BrosselUNSPECIFIED
Kao, Cheng-YangNational Tsing Hua UniversityUNSPECIFIED
Knowles, PaulUniversity de FribourgUNSPECIFIED
Kottmann, Franz2Institute for Particle Physics, Eidgenössische Technische Hochschule (ETHUNSPECIFIED
Le Bigot, EricLaboratoire Kastler BrosselUNSPECIFIED
Liu, Yi-WeiPhysics Department, National Tsing Hua UniversityUNSPECIFIED
Lopes, JoseUniversidade de CoimbraUNSPECIFIED
Luhova, LiviaDépartement de Physique, Université de Fribourg,UNSPECIFIED
Monteiro, ChristinaUniversidade de CoimbraUNSPECIFIED
Mulhauser, FrancoiseUniversity de FribourgUNSPECIFIED
Nebel, TobiasMax Plank Institut für QuantenoptikUNSPECIFIED
Rabinowitz, PaulPrinceton UniversityUNSPECIFIED
dos Santos, JoaquimUniversidade de CoimbraUNSPECIFIED
Schaller, LukasUniversity de FribourgUNSPECIFIED
Schwob, CatherineLaboratoire Kastler BrosselUNSPECIFIED
Taqqu, DavidPaul Scherrer InstituteUNSPECIFIED
Veloso, JoaoUniveristy of Aveiro, PortugalUNSPECIFIED
Vogelsang, JanMax-Planck-Institut für QuantenoptikUNSPECIFIED
Pohl, RandolfMax Plank Institut für QuantenoptikUNSPECIFIED
Date:25 January 2013
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1126/science.1230016
Page Range:pp. 417-420
Publisher:American Association for the Advancement of Science (AAAS)
Series Name:Science Journals
Keywords:Proton Structure, Muonic Hydrogen
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Haupts, Melanie Sabrina
Deposited On:03 May 2013 14:15
Last Modified:08 Mar 2018 18:50

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