The size of the proton and the deuteron
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Pohl, Randolf
Max-Planck-Institut für Quantenoptik, Garching, Germany - Ludwig-Maximilians-Universität, Munich, Germany
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Amaro, Fernando D.
Universidade de Coimbra, Portugal
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Antognini, Aldo
Max-Planck-Institut für Quantenoptik, Garching, Germany - ETH Zürich, Switzerland
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Biraben, François
Laboratoire Kastler Brossel, École Normale Supérieure, CNRS and Université P. et M. Curie, Paris, France
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Cardoso, João M. R.
Universidade de Coimbra, Portugal
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Covita, Daniel S.
Universidade de Coimbra, Portugal - Universidade de Aveiro, Portugal
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Dax, Andreas
Physics Department, Yale University, USA
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Dhawan, Satish
Physics Department, Yale University, USA
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Fernandes, Luis M. P.
Universidade de Coimbra, Portugal
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Giesen, Adolf
IFSW, Universität Stuttgart, Germany - Dausinger & Giesen GmbH, Stuttgart, Germany
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Graf, Thomas
IFSW, Universität Stuttgart, Germany
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Hänsch, Theodor W.
Max-Planck-Institut für Quantenoptik, Garching, Germany - Ludwig-Maximilians-Universität, Munich, Germany
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Indelicato, Paul
Laboratoire Kastler Brossel, École Normale Supérieure, CNRS and Université P. et M. Curie, Paris, France
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Julien, Lucile
Laboratoire Kastler Brossel, École Normale Supérieure, CNRS and Université P. et M. Curie, Paris, France
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Kao, Cheng-Yang
National Tsing Hua University, Taiwan
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Knowles, Paul E.
Université de Fribourg, Switzerland
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Bigot, Eric-Olivier Le
Laboratoire Kastler Brossel, École Normale Supérieure, CNRS and Université P. et M. Curie, Paris, France
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Liu, Yi-Wei
National Tsing Hua University, Taiwan
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Lopes, José A. M.
Universidade de Coimbra, Portugal
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Ludhova, Livia
Université de Fribourg, Switzerland
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Monteiro, Cristina M. B.
Universidade de Coimbra, Portugal
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Mulhauser, Françoise
Université de Fribourg, Switzerland
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Nebel, Tobias
Max-Planck-Institut für Quantenoptik, Garching, Germany
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Nez, François
Laboratoire Kastler Brossel, École Normale Supérieure, CNRS and Université P. et M. Curie, Paris, France
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Rabinowitz, Paul
Department of Chemistry, Princeton University, USA
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Santos, Joaquim M. F. dos
Universidade de Coimbra, Portugal
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Schaller, Lukas A.
Université de Fribourg, Switzerland
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Schuhmann, Karsten
Dausinger & Giesen GmbH, Stuttgart, Germany
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Schwob, Catherine
Laboratoire Kastler Brossel, École Normale Supérieure, CNRS and Université P. et M. Curie, Paris, France
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Taqqu, David
Paul Scherrer Institute, Switzerland
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Veloso, João F. C. A.
Universidade de Aveiro, Portugal
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Kottmann, Franz
ETH Zürich, Switzerland
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Published in:
- Journal of Physics: Conference Series. - 2011, vol. 264, no. 1, p. 012008
English
We have recently measured the 2S1/2⁼¹ − 2P3/2 ⁼ ² energy splitting in the muonic hydrogen atom μp to be 49881.88 (76) GHz. Using recent QED calculations of the fine-, hyperfine, QED and finite size contributions we obtain a root-mean-square proton charge radius of rp = 0.84184 (67) fm. This value is ten times more precise, but 5 standard deviations smaller, than the 2006 CODATA value of rp = 0.8768 (69) fm. The source of this discrepancy is unknown. Using the precise measurements of the 1S-2S transition in regular hydrogen and deuterium and our value of rp we obtain improved values of the Rydberg constant, R∞ = 10973731.568160 (16) m⁻¹and the rms charge radius of the deuteron rd = 2.12809 (31) fm.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Physique
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Language
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Classification
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Physics
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/301781
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