Trapped antihydrogen

被引：0
|
作者：
G. B. Andresen
M. D. Ashkezari
M. Baquero-Ruiz
W. Bertsche
P. D. Bowe
E. Butler
C. L. Cesar
S. Chapman
M. Charlton
A. Deller
S. Eriksson
J. Fajans
T. Friesen
M. C. Fujiwara
D. R. Gill
A. Gutierrez
J. S. Hangst
W. N. Hardy
M. E. Hayden
A. J. Humphries
R. Hydomako
M. J. Jenkins
S. Jonsell
L. V. Jørgensen
L. Kurchaninov
N. Madsen
S. Menary
P. Nolan
K. Olchanski
A. Olin
A. Povilus
P. Pusa
F. Robicheaux
E. Sarid
S. Seif el Nasr
D. M. Silveira
C. So
J. W. Storey
R. I. Thompson
D. P. van der Werf
J. S. Wurtele
Y. Yamazaki
机构：
[1] Aarhus University,Department of Physics and Astronomy
[2] Simon Fraser University,Department of Physics
[3] University of California,Department of Physics
[4] Swansea University,Department of Physics
[5] Instituto de Fısica,Department of Physics and Astronomy
[6] Universidade Federal do Rio de Janeiro,Department of Physics and Astronomy
[7] Lawrence Berkeley National Laboratory,Department of Physics and Astronomy
[8] University of Calgary,Department of Physics
[9] TRIUMF,Department of Physics
[10] 4004 Wesbrook Mall,Department of Physics
[11] University of British Columbia,undefined
[12] Fysikum,undefined
[13] Stockholm University,undefined
[14] York University,undefined
[15] University of Liverpool,undefined
[16] Auburn University,undefined
[17] Nuclear Research Center NEGEV,undefined
[18] Atomic Physics Laboratory,undefined
[19] RIKEN,undefined
[20] Graduate School of Arts and Sciences,undefined
[21] University of Tokyo,undefined
[22] Present address: Physik-Institut,undefined
[23] Zürich University,undefined
[24] CH-8057 Zürich,undefined
[25] Switzerland.,undefined
来源：
Nature | 2010年 / 468卷
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摘要：
Antihydrogen, the bound state of an antiproton and a positron, has been produced at low energies since 2002 at CERN, Europe's particle-physics lab near Geneva, Switzerland. Antihydrogen is of fundamental interest for testing the standard model of elementary particles and interactions. However, experiments to date have produced antihydrogen that is not confined, precluding detailed study of its structure. Now the trapping and controlled release of atoms of antihydrogen has been achieved, paving the way for precision measurements on anti-atoms. In this historic experiment, an interaction between about 107 antiprotons and 7 × 108 positrons generated an observed 38 annihilation events corresponding to 38 atoms of antihydrogen briefly confined in ultra-cold superconducting traps.
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页码：673 / 676
页数：3
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