The size of the proton
- R. Pohl, A. Antognini, F. Kottmann
- PhysicsNature
- 8 July 2010
The root-mean-square charge radius, rp, has been determined with an accuracy of 2 per cent by electron–proton scattering experiments, and the present most accurate value of rp (with an uncertainty of 1 per cent) is given by the CODATA compilation of physical constants.
Proton Structure from the Measurement of 2S-2P Transition Frequencies of Muonic Hydrogen
- A. Antognini, F. Nez, R. Pohl
- PhysicsScience
- 25 January 2013
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.
New determination of the fine structure constant and test of the quantum electrodynamics
- P. Cladé, R. Bouchendira, S. Guellati, F. Nez, F. Biraben
- PhysicsInternational Quantum Electronics Conference…
- 28 August 2011
Using this determination, a theoretical value of the electron anomaly a<inf>e</inf> = 0.001 159 652 181 13(84) is obtained which is in agreement with the experimental measurement of Gabrielse and provides the most stringent test of the QED.
New determination of the fine structure constant and test of the quantum electrodynamics
- R. Bouchendira, P. Cladé, S. Guellati-Khélifa, F. Nez, F. Biraben
- PhysicsConference on Lasers and Electro-Optics
- 16 December 2010
We report a new value of the fine structure constant with a relative uncertaintity of 6.6×10-10. This result is deduced from the h/m ratio measurement on Rb atoms. The comparison with the electron…
Optical frequency determination of the hyperfine components of the 5S12-5D32 two-photon transitions in rubidium
- F. Nez, F. Biraben, R. Felder, Y. Millerioux
- Physics
- 15 October 1993
Laser spectroscopy of muonic deuterium
- R. Pohl, F. Nez, A. Antognini
- PhysicsScience
- 12 August 2016
The deuteron is too small, too The radius of the proton has remained a point of debate ever since the spectroscopy of muonic hydrogen indicated a large discrepancy from the previously accepted value.…
Absolute Frequency Measurement of the 2S-8S/D Transitions in Hydrogen and Deuterium: New Determination of the Rydberg Constant
- B. D. Beauvoir, F. Nez, J. Zondy
- Physics
- 20 January 1997
We have performed a pure optical frequency measurement of the 2S-8S/D two-photon transitions in atomic hydrogen and deuterium. These frequencies are directly compared to a new frequency standard, a…
Optical Frequency Measurement of the 2S-12D Transitions in Hydrogen and Deuterium: Rydberg Constant and Lamb Shift Determinations
- C. Schwob, L. Jozefowski, A. Clairon
- Physics, Medicine
- 21 June 1999
These are now the most accurate values available for the Rydberg constant in atomic hydrogen and deuterium.
New Measurement of the 1S-3S Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle.
- H. Fleurbaey, S. Galtier, J. Gu'ena
- PhysicsPhysical Review Letters
- 26 January 2018
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…
Large momentum beam splitter using Bloch oscillations.
- P. Cladé, S. Guellati-Khélifa, F. Nez, F. Biraben
- PhysicsPhysical Review Letters
- 20 March 2009
This Letter describes how Bloch oscillations can be used to increase this separation and to create a large momentum transfer (LMT) beam splitter and shows that this method seems to be very promising to realize a LMTbeam splitter with several tens of recoils and a very good efficiency.
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