Laser spectroscopy of muonic deuterium
@article{Pohl2016LaserSO, title={Laser spectroscopy of muonic deuterium}, author={Randolf Pohl and François Nez and Luis M P Fernandes and Fernando Domingues Amaro and Francois Biraben and Jo{\~a}o M. R. Cardoso and Daniel S. Covita and Andreas J Dax and S. K. Dhawan and Marc Diepold and Adolf Giesen and Andrea L. Gouvea and Thomas Graf and Theodor W. H{\"a}nsch and Paul Indelicato and Lucile Julien and Paul E. Knowles and Franz Kottmann and E-O Le Bigot and Yi-Wei Liu and Jos{\'e} A. M. Lopes and Livia Ludhova and Cristina Maria Bernardes Monteiro and Françoise Mulhauser and Tobias Nebel and Paul Rabinowitz and Joaquim Marques Ferreira dos Santos and Lukas A. Schaller and Karsten Schuhmann and Catherine Schwob and David Taqqu and Jo{\~a}o Veloso and Aldo Antognini}, journal={Science}, year={2016}, volume={353}, pages={669 - 673} }
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. Pohl et al. add an important clue for solving this so-called proton radius puzzle. They determined the charge radius of the deuteron, a nucleus consisting of a proton and a neutron, from the transition frequencies in muonic deuterium. Mirroring the proton radius puzzle, the radius of the deuteron…
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References
SHOWING 1-10 OF 53 REFERENCES
The PRad experiment and the proton radius puzzle
- Physics
- 2014
New results from the recent muonic hydrogen experiments seriously questioned our knowledge of the proton charge radius, rp. The new value, with its unprecedented less than sub-percent precision, is…
Proton Structure from the Measurement of 2S-2P Transition Frequencies of Muonic Hydrogen
- PhysicsScience
- 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.
Puzzling out the proton radius puzzle
- Physics
- 2014
The discrepancy between the proton charge radius extracted from the muonic hydrogen Lamb shift measurement and the best present value obtained from the elastic scattering experiments, remains…
The size of the proton
- PhysicsNature
- 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.
Muonic hydrogen and MeV forces
- Physics
- 2011
We explore the possibility that a new interaction between muons and protons is responsible for the discrepancy between the CODATA value of the proton-radius and the value deduced from the measurement…
Nuclear-structure contribution to the Lamb shift in muonic deuterium
- Physics
- 2014
We consider the two-photon exchange contribution to the $2P-2S$ Lamb shift in muonic deuterium in the framework of forward dispersion relations. The dispersion integrals are evaluated using…
Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium and helium-3
- Physics
- 2015
Quantum interference between energetically close states is theoretically investigated, with the state structure being observed via laser spectroscopy. In this work, we focus on hyperfine states of…
Nuclear structure corrections in muonic deuterium.
- PhysicsPhysical review letters
- 2011
The muonic hydrogen experiment measuring the 2P-2S transition energy is significantly discrepant with theoretical predictions based on quantum electrodynamics, and the only correction which might be questioned in μD is that due to the deuteron polarizability.
Muonic Hydrogen and the Proton Radius Puzzle
- Physics
- 2013
The extremely precise extraction of the proton radius obtained by Pohl et al. from the measured energy difference between the 2P and 2S states of muonic hydrogen disagrees significantly with that…