New Measurement of the $1S-3S$ Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle

Fleurbaey, Hélène; Galtier, Sandrine; Thomas, Simon; Bonnaud, Marie; Julien, Lucile; Biraben, François; Nez, François; Abgrall, Michel; Guéna, Jocelyne

doi:10.1103/PhysRevLett.120.183001

New Measurement of the $1S-3S$ Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle

Jan 26, 2018

5 pages

Published in:

Phys.Rev.Lett. 120 (2018) 18, 183001

Published: May 5, 2018

e-Print:

1801.08816 [physics.atom-ph]

DOI:

10.1103/PhysRevLett.120.183001

PDG:

{{\mathit p}}

CHARGE RADIUS

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Abstract: (APS)

We present a new measurement of the 1S-3S two-photon transition frequency of hydrogen, realized with a continuous-wave excitation laser at 205 nm on a room-temperature atomic beam, with a relative uncertainty of 9×10-13. The proton charge radius deduced from this measurement, rp=0.877(13) fm, is in very good agreement with the current CODATA-recommended value. This result contributes to the ongoing search to solve the proton charge radius puzzle, which arose from a discrepancy between the CODATA value and a more precise determination of rp from muonic hydrogen spectroscopy.

Note:

5 pages, 4 figures, accepted for publication by Phys. Rev. Lett

References(27)

Figures(0)

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New Measurement of the 1S−3S1S-3S1S−3S Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle

Citations per year

Improved Measurement of the Hydrogen 1S - 2S Transition Frequency

CODATA Recommended Values of the Fundamental Physical Constants: 2014

Evaluation of the proton charge radius from e-p scattering

The size of the proton

Proton Structure from the Measurement of 2S−2P2S-2P2S−2P Transition Frequencies of Muonic Hydrogen

The Proton Radius Puzzle

The Rydberg constant and proton size from atomic hydrogen

Molecular Beams

New Measurement of the $1S-3S$ Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle

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