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An experimental lim...
An experimental limit on the charge of antihydrogen
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Amole, C. (author)
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Ashkezari, M. D. (author)
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Baquero-Ruiz, M. (author)
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Bertsche, W. (author)
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Butler, E. (author)
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Capra, A. (author)
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Cesar, C. L. (author)
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Charlton, M. (author)
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Eriksson, S. (author)
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Fajans, J. (author)
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Friesen, T. (author)
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Fujiwara, M. C. (author)
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Gill, D. R. (author)
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Gutierrez, A. (author)
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Hangst, J. S. (author)
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Hardy, W. N. (author)
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Hayden, M. E. (author)
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Isaac, C. A. (author)
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- Jonsell, Svante (author)
- Stockholms universitet,Fysikum
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Kurchaninov, L. (author)
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Little, A. (author)
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Madsen, N. (author)
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McKenna, J. T. K. (author)
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Menary, S. (author)
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Napoli, S. C. (author)
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Nolan, P. (author)
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Olchanski, K. (author)
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Olin, A. (author)
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Povilus, A. (author)
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Pusa, P. (author)
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Rasmussen, C. O. (author)
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Robicheaux, F. (author)
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Sarid, E. (author)
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Silveira, D. M. (author)
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So, C. (author)
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Tharp, T. D. (author)
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Thompson, R. I. (author)
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van der Werf, D. P. (author)
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Vendeiro, Z. (author)
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Wurtele, J. S. (author)
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Zhmoginov, A. I. (author)
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Charman, A. E. (author)
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(creator_code:org_t)
- 2014-06-03
- 2014
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 5, s. 3955-
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Abstract
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- The properties of antihydrogen are expected to be identical to those of hydrogen, and any differences would constitute a profound challenge to the fundamental theories of physics. The most commonly discussed antiatom- based tests of these theories are searches for antihydrogen- hydrogen spectral differences (tests of CPT (charge- parity- time) invariance) or gravitational differences (tests of the weak equivalence principle). Here we, the ALPHA Collaboration, report a different and somewhat unusual test of CPT and of quantum anomaly cancellation. A retrospective analysis of the influence of electric fields on antihydrogen atoms released from the ALPHA trap finds a mean axial deflection of 4.1 +/- 3.4mm for an average axial electric field of 0.51Vmm1. Combined with extensive numerical modelling, this measurement leads to a bound on the charge Qe of antihydrogen of Q (+/- 1.3 +/- 1.1 +/- 0.4)10 8. Here, e is the unit charge, and the errors are from statistics and systematic effects.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Amole, C.
-
Ashkezari, M. D.
-
Baquero-Ruiz, M.
-
Bertsche, W.
-
Butler, E.
-
Capra, A.
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show more...
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Cesar, C. L.
-
Charlton, M.
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Eriksson, S.
-
Fajans, J.
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Friesen, T.
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Fujiwara, M. C.
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Gill, D. R.
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Gutierrez, A.
-
Hangst, J. S.
-
Hardy, W. N.
-
Hayden, M. E.
-
Isaac, C. A.
-
Jonsell, Svante
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Kurchaninov, L.
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Little, A.
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Madsen, N.
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McKenna, J. T. K ...
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Menary, S.
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Napoli, S. C.
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Nolan, P.
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Olchanski, K.
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Olin, A.
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Povilus, A.
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Pusa, P.
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Rasmussen, C. O.
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Robicheaux, F.
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Sarid, E.
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Silveira, D. M.
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So, C.
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Tharp, T. D.
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Thompson, R. I.
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van der Werf, D. ...
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Vendeiro, Z.
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Wurtele, J. S.
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Zhmoginov, A. I.
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Charman, A. E.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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Nature Communica ...
- By the university
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Stockholm University