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

被引：650

作者：

Antognini, Aldo ^{[1
,2
]}

Nez, Francois ^{[3
,4
]}

Schuhmann, Karsten ^{[2
,5
]}

Amaro, Fernando D. ^{[6
]}

Biraben, Francois ^{[3
,4
]}

Cardoso, Joao M. R. ^{[6
]}

Covita, Daniel S. ^{[6
,7
]}

Dax, Andreas ^{[8
]}

Dhawan, Satish ^{[8
]}

Diepold, Marc ^{[1
]}

Fernandes, Luis M. P. ^{[6
]}

Giesen, Adolf ^{[5
,9
]}

Gouvea, Andrea L. ^{[6
]}

Graf, Thomas ^{[9
]}

Haensch, Theodor W. ^{[1
,10
]}

Indelicato, Paul ^{[3
,4
]}

Julien, Lucile ^{[3
,4
]}

Kao, Cheng-Yang ^{[11
]}

Knowles, Paul ^{[12
]}

Kottmann, Franz ^{[2
]}

Le Bigot, Eric-Olivier ^{[3
,4
]}

Liu, Yi-Wei ^{[11
]}

Lopes, Jose A. M. ^{[6
]}

Ludhova, Livia ^{[12
]}

Monteiro, Cristina M. B. ^{[6
]}

Mulhauser, Francoise ^{[12
]}

Nebel, Tobias ^{[1
]}

Rabinowitz, Paul ^{[13
]}

dos Santos, Joaquim M. F. ^{[6
]}

Schaller, Lukas A. ^{[12
]}

Schwob, Catherine ^{[3
,4
]}

Taqqu, David ^{[14
]}

Veloso, Joao F. C. A. ^{[7
]}

Vogelsang, Jan ^{[1
]}

Pohl, Randolf ^{[1
]}

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[2] ETH, Inst Particle Phys, CH-8093 Zurich, Switzerland

[3] Ecole Normale Super, CNRS, Lab Kastler Brossel, F-75252 Paris 05, France

[4] Univ Paris 06, F-75252 Paris 05, France

[5] Dausinger & Giesen GmbH, D-70178 Stuttgart, Germany

[6] Univ Coimbra, Dept Fis, P-3004516 Coimbra, Portugal

[7] Univ Aveiro, Dept Fis, I3N, P-3810193 Aveiro, Portugal

[8] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[9] Univ Stuttgart, Inst Strahlwerkzeuge, D-70569 Stuttgart, Germany

[10] Univ Munich, Munich, Germany

[11] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan

[12] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[13] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

[14] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

SCIENCE | 2013年 / 339卷 / 6118期

基金：

瑞士国家科学基金会; 欧洲研究理事会;

关键词：

LAMB SHIFT; POLARIZABILITY CONTRIBUTION; RADIUS; ATOMS; ZEMACH; SIZE;

D O I：

10.1126/science.1230016

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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. These radii may be extracted from the laser spectroscopy of muonic hydrogen (mu p, that is, a proton orbited by a muon). We measured the 2S(1/2)(F=0)-2P(3/2)(F=1) transition frequency in mu p to be 54611.16(1.05) gigahertz (numbers in parentheses indicate one standard deviation of uncertainty) and reevaluated the 2S(1/2)(F=1)-2P(3/2)(F=2) transition frequency, yielding 49881.35(65) gigahertz. From the measurements, we determined the Zemach radius, r(Z) = 1.082(37) femtometers, and the magnetic radius, r(M) = 0.87(6) femtometer, of the proton. We also extracted the charge radius, r(E) = 0.84087(39) femtometer, with an order of magnitude more precision than the 2010-CODATA value and at 7 sigma variance with respect to it, thus reinforcing the proton radius puzzle.

引用

页码：417 / 420

页数：4

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