Laser spectroscopy of muonic deuterium.

Autor: Pohl R; Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany. pohl@uni-mainz.de., Nez F; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, Ecole Normale Supérieure-PSL Research University, Collège de France, 75005 Paris, France., Fernandes LM; LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal., Amaro FD; LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal., Biraben F; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, Ecole Normale Supérieure-PSL Research University, Collège de France, 75005 Paris, France., Cardoso JM; LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal., Covita DS; I3N, Departamento de Física, Universidade de Aveiro, 3810-193 Aveiro, Portugal., Dax A; Physics Department, Yale University, New Haven, CT 06520-8121, USA., Dhawan S; Physics Department, Yale University, New Haven, CT 06520-8121, USA., Diepold M; Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany., Giesen A; Institut für Strahlwerkzeuge, Universität Stuttgart, 70569 Stuttgart, Germany. Dausinger + Giesen GmbH, Rotebühlstrasse 87, 70178 Stuttgart, Germany., Gouvea AL; LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal., Graf T; Institut für Strahlwerkzeuge, Universität Stuttgart, 70569 Stuttgart, Germany., Hänsch TW; Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany. Ludwig-Maximilians-Universität, Munich, Germany., Indelicato P; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, Ecole Normale Supérieure-PSL Research University, Collège de France, 75005 Paris, France., Julien L; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, Ecole Normale Supérieure-PSL Research University, Collège de France, 75005 Paris, France., Knowles P; Département de Physique, Université de Fribourg, 1700 Fribourg, Switzerland., Kottmann F; Institute for Particle Physics, ETH Zurich, 8093 Zurich, Switzerland., Le Bigot EO; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, Ecole Normale Supérieure-PSL Research University, Collège de France, 75005 Paris, France., Liu YW; Physics Department, National Tsing Hua University, Hsinchu 300, Taiwan., Lopes JA; LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal. Instituto Politécnico de Coimbra, ISEC, 3030-199, Portugal., Ludhova L; Département de Physique, Université de Fribourg, 1700 Fribourg, Switzerland., Monteiro CM; LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal., Mulhauser F; Département de Physique, Université de Fribourg, 1700 Fribourg, Switzerland. Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany. I3N, Departamento de Física, Universidade de Aveiro, 3810-193 Aveiro, Portugal., Nebel T; Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany., Rabinowitz P; Department of Chemistry, Princeton University, Princeton, NJ 08544-1009, USA., dos Santos JM; LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal., Schaller LA; Département de Physique, Université de Fribourg, 1700 Fribourg, Switzerland., Schuhmann K; Institute for Particle Physics, ETH Zurich, 8093 Zurich, Switzerland. Dausinger + Giesen GmbH, Rotebühlstrasse 87, 70178 Stuttgart, Germany. Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland., Schwob C; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, Ecole Normale Supérieure-PSL Research University, Collège de France, 75005 Paris, France., Taqqu D; Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland., Veloso JF; I3N, Departamento de Física, Universidade de Aveiro, 3810-193 Aveiro, Portugal., Antognini A; Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany. Institute for Particle Physics, ETH Zurich, 8093 Zurich, Switzerland. Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2016 Aug 12; Vol. 353 (6300), pp. 669-73.
DOI: 10.1126/science.aaf2468
Abstrakt: The deuteron is the simplest compound nucleus, composed of one proton and one neutron. Deuteron properties such as the root-mean-square charge radius rd and the polarizability serve as important benchmarks for understanding the nuclear forces and structure. Muonic deuterium μd is the exotic atom formed by a deuteron and a negative muon μ(-). We measured three 2S-2P transitions in μd and obtain r(d) = 2.12562(78) fm, which is 2.7 times more accurate but 7.5σ smaller than the CODATA-2010 value r(d) = 2.1424(21) fm. The μd value is also 3.5σ smaller than the r(d) value from electronic deuterium spectroscopy. The smaller r(d), when combined with the electronic isotope shift, yields a "small" proton radius r(p), similar to the one from muonic hydrogen, amplifying the proton radius puzzle.
(Copyright © 2016, American Association for the Advancement of Science.)
Databáze: MEDLINE
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