An experimental limit on the charge of antihydrogen

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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 diffe...

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Autores principales: Amole, C., Ashkezari, M. D., Baquero-Ruiz, M., Bertsche, W., Butler, E., Capra, A., Cesar, C. L., Charlton, M., Eriksson, S., Fajans, J., Friesen, T., Fujiwara, M. C., Gill, D. R., Gutierrez, A., Hangst, J. S., Hardy, W. N., Hayden, M. E., Isaac, C. A., Jonsell, S., Kurchaninov, L., Little, A., Madsen, N., McKenna, J. T. K., Menary, S., Napoli, S. C., Nolan, P., Olchanski, K., Olin, A., Povilus, A., Pusa, P., Rasmussen, C.Ø., Robicheaux, F., Sarid, E., Silveira, D. M., So, C., Tharp, T. D., Thompson, R. I., van der Werf, D. P., Vendeiro, Z., Wurtele, J. S., Zhmoginov, A. I., Charman, A. E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4279174/
https://www.ncbi.nlm.nih.gov/pubmed/24892800
http://dx.doi.org/10.1038/ncomms4955
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author Amole, C.
Ashkezari, M. D.
Baquero-Ruiz, M.
Bertsche, W.
Butler, E.
Capra, A.
Cesar, C. L.
Charlton, M.
Eriksson, S.
Fajans, J.
Friesen, T.
Fujiwara, M. C.
Gill, D. R.
Gutierrez, A.
Hangst, J. S.
Hardy, W. N.
Hayden, M. E.
Isaac, C. A.
Jonsell, S.
Kurchaninov, L.
Little, A.
Madsen, N.
McKenna, J. T. K.
Menary, S.
Napoli, S. C.
Nolan, P.
Olchanski, K.
Olin, A.
Povilus, A.
Pusa, P.
Rasmussen, C.Ø.
Robicheaux, F.
Sarid, E.
Silveira, D. M.
So, C.
Tharp, T. D.
Thompson, R. I.
van der Werf, D. P.
Vendeiro, Z.
Wurtele, J. S.
Zhmoginov, A. I.
Charman, A. E.
author_facet Amole, C.
Ashkezari, M. D.
Baquero-Ruiz, M.
Bertsche, W.
Butler, E.
Capra, A.
Cesar, C. L.
Charlton, M.
Eriksson, S.
Fajans, J.
Friesen, T.
Fujiwara, M. C.
Gill, D. R.
Gutierrez, A.
Hangst, J. S.
Hardy, W. N.
Hayden, M. E.
Isaac, C. A.
Jonsell, S.
Kurchaninov, L.
Little, A.
Madsen, N.
McKenna, J. T. K.
Menary, S.
Napoli, S. C.
Nolan, P.
Olchanski, K.
Olin, A.
Povilus, A.
Pusa, P.
Rasmussen, C.Ø.
Robicheaux, F.
Sarid, E.
Silveira, D. M.
So, C.
Tharp, T. D.
Thompson, R. I.
van der Werf, D. P.
Vendeiro, Z.
Wurtele, J. S.
Zhmoginov, A. I.
Charman, A. E.
author_sort Amole, C.
collection PubMed
description 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±3.4 mm for an average axial electric field of 0.51 V mm(−1). 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.
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spelling pubmed-42791742015-01-14 An experimental limit on the charge of antihydrogen Amole, C. Ashkezari, M. D. Baquero-Ruiz, M. Bertsche, W. Butler, E. Capra, A. Cesar, C. L. Charlton, M. Eriksson, S. Fajans, J. Friesen, T. Fujiwara, M. C. Gill, D. R. Gutierrez, A. Hangst, J. S. Hardy, W. N. Hayden, M. E. Isaac, C. A. Jonsell, S. Kurchaninov, L. Little, A. Madsen, N. McKenna, J. T. K. Menary, S. Napoli, S. C. Nolan, P. Olchanski, K. Olin, A. Povilus, A. Pusa, P. Rasmussen, C.Ø. Robicheaux, F. Sarid, E. Silveira, D. M. So, C. Tharp, T. D. Thompson, R. I. van der Werf, D. P. Vendeiro, Z. Wurtele, J. S. Zhmoginov, A. I. Charman, A. E. Nat Commun Article 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±3.4 mm for an average axial electric field of 0.51 V mm(−1). 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. Nature Pub. Group 2014-06-03 /pmc/articles/PMC4279174/ /pubmed/24892800 http://dx.doi.org/10.1038/ncomms4955 Text en Copyright © 2014, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Amole, C.
Ashkezari, M. D.
Baquero-Ruiz, M.
Bertsche, W.
Butler, E.
Capra, A.
Cesar, C. L.
Charlton, M.
Eriksson, S.
Fajans, J.
Friesen, T.
Fujiwara, M. C.
Gill, D. R.
Gutierrez, A.
Hangst, J. S.
Hardy, W. N.
Hayden, M. E.
Isaac, C. A.
Jonsell, S.
Kurchaninov, L.
Little, A.
Madsen, N.
McKenna, J. T. K.
Menary, S.
Napoli, S. C.
Nolan, P.
Olchanski, K.
Olin, A.
Povilus, A.
Pusa, P.
Rasmussen, C.Ø.
Robicheaux, F.
Sarid, E.
Silveira, D. M.
So, C.
Tharp, T. D.
Thompson, R. I.
van der Werf, D. P.
Vendeiro, Z.
Wurtele, J. S.
Zhmoginov, A. I.
Charman, A. E.
An experimental limit on the charge of antihydrogen
title An experimental limit on the charge of antihydrogen
title_full An experimental limit on the charge of antihydrogen
title_fullStr An experimental limit on the charge of antihydrogen
title_full_unstemmed An experimental limit on the charge of antihydrogen
title_short An experimental limit on the charge of antihydrogen
title_sort experimental limit on the charge of antihydrogen
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4279174/
https://www.ncbi.nlm.nih.gov/pubmed/24892800
http://dx.doi.org/10.1038/ncomms4955
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