Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen

Friesen, T; Amole, C; Ashkezari, M. D; Baquero-Ruiz, M; Bertsche, W; Bowe, P. D; Butler, E; Capra, A; Cesar, C. L; Charlton, M; Deller, A; Evetts, N; Eriksson, S; Fajans, J; 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; K, J. T.; Menary, S; Napoli, S. C; Olchanski, K; Olin, A; Pusa, P; Rasmussen, C. O; Robicheaux, F; Sarid, E; Silveira, D. M; So, C; Stracka, S; Thompson, R. I; van, D. P.; Wurtele, J. S; der, Dirk van; Madsen, Niels; Isaac, Aled; Eriksson, Stefan

doi:10.1063/1.4796068

Conference Paper/Proceeding/Abstract 1230 views

Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen

T Friesen, C Amole, M. D Ashkezari, M Baquero-Ruiz, W Bertsche, P. D Bowe, E Butler, A Capra, C. L Cesar, M Charlton, A Deller, N Evetts, S Eriksson, J Fajans, M. C Fujiwara, D. R Gill, A Gutierrez, J. S Hangst, W. N Hardy, M. E Hayden, C. A Isaac, S Jonsell, L Kurchaninov, A Little, N Madsen, J. T. K McKenna, S Menary, S. C Napoli, K Olchanski, A Olin, P Pusa, C. O Rasmussen, F Robicheaux, E Sarid, D. M Silveira, C So, S Stracka, R. I Thompson, D. P. van der Werf, J. S Wurtele, Dirk van der Werf

, Niels Madsen

, Aled Isaac

, Stefan Eriksson

AIP Conference Proceedings, Volume: 1521, Issue: 1, Pages: 123 - 133

Swansea University Authors: Dirk van der Werf , Niels Madsen , Aled Isaac , Stefan Eriksson

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DOI (Published version): 10.1063/1.4796068

Abstract

Long term magnetic confinement of antihydrogen atoms has recently been demonstrated by the ALPHA collaboration at CERN, opening the door to a range of experimental possibilities. Of particular interest is a measurement of the antihydrogen spectrum. A precise comparison of the spectrum of antihydroge...

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Published in:	AIP Conference Proceedings
ISSN:	0094-243X
Published:	2013
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa14623
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spelling	2013-06-18T09:41:35.4094177 v2 14623 2013-04-22 Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen 4a4149ebce588e432f310f4ab44dd82a 0000-0001-5436-5214 Dirk van der Werf Dirk van der Werf true false e348e4d768ee19c1d0c68ce3a66d6303 0000-0002-7372-0784 Niels Madsen Niels Madsen true false 06d7ed42719ef7bb697cf780c63e26f0 0000-0002-7813-1903 Aled Isaac Aled Isaac true false 785cbd474febb1bfa9c0e14abaf9c4a8 0000-0002-5390-1879 Stefan Eriksson Stefan Eriksson true false 2013-04-22 SPH Long term magnetic confinement of antihydrogen atoms has recently been demonstrated by the ALPHA collaboration at CERN, opening the door to a range of experimental possibilities. Of particular interest is a measurement of the antihydrogen spectrum. A precise comparison of the spectrum of antihydrogen with that of hydrogen would be an excellent test of CPT symmetry. One prime candidate for precision CPT tests is the ground-state hyperfine transition; measured in hydrogen to a precision of nearly one part in 1012. Effective execution of such an experiment with trapped antihydrogen requires precise knowledge of the magnetic environment. Here we present a solution that uses an electron plasma confined in the antihydrogen trapping region. The cyclotron resonance of the electron plasma is probed with microwaves at the cyclotron frequency and the subsequent heating of the electron plasma is measured through the plasma quadrupole mode frequency. Using this method, the minimum magnetic field of the neutral trap can be determined to within 4 parts in 104. This technique was used extensively in the recent demonstration of resonant interaction with the hyperfine levels of trapped antihydrogen atoms. Conference Paper/Proceeding/Abstract AIP Conference Proceedings 1521 1 123 133 0094-243X 31 12 2013 2013-12-31 10.1063/1.4796068 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2013-06-18T09:41:35.4094177 2013-04-22T10:23:15.3713344 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics T Friesen 1 C Amole 2 M. D Ashkezari 3 M Baquero-Ruiz 4 W Bertsche 5 P. D Bowe 6 E Butler 7 A Capra 8 C. L Cesar 9 M Charlton 10 A Deller 11 N Evetts 12 S Eriksson 13 J Fajans 14 M. C Fujiwara 15 D. R Gill 16 A Gutierrez 17 J. S Hangst 18 W. N Hardy 19 M. E Hayden 20 C. A Isaac 21 S Jonsell 22 L Kurchaninov 23 A Little 24 N Madsen 25 J. T. K McKenna 26 S Menary 27 S. C Napoli 28 K Olchanski 29 A Olin 30 P Pusa 31 C. O Rasmussen 32 F Robicheaux 33 E Sarid 34 D. M Silveira 35 C So 36 S Stracka 37 R. I Thompson 38 D. P. van der Werf 39 J. S Wurtele 40 Dirk van der Werf 0000-0001-5436-5214 41 Niels Madsen 0000-0002-7372-0784 42 Aled Isaac 0000-0002-7813-1903 43 Stefan Eriksson 0000-0002-5390-1879 44
title	Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen
spellingShingle	Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen Dirk van der Werf Niels Madsen Aled Isaac Stefan Eriksson
title_short	Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen
title_full	Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen
title_fullStr	Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen
title_full_unstemmed	Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen
title_sort	Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen
author_id_str_mv	4a4149ebce588e432f310f4ab44dd82a e348e4d768ee19c1d0c68ce3a66d6303 06d7ed42719ef7bb697cf780c63e26f0 785cbd474febb1bfa9c0e14abaf9c4a8
author_id_fullname_str_mv	4a4149ebce588e432f310f4ab44dd82a_*_Dirk van der Werf e348e4d768ee19c1d0c68ce3a66d6303__Niels Madsen 06d7ed42719ef7bb697cf780c63e26f0__Aled Isaac 785cbd474febb1bfa9c0e14abaf9c4a8_*_Stefan Eriksson
author	Dirk van der Werf Niels Madsen Aled Isaac Stefan Eriksson
author2	T Friesen C Amole M. D Ashkezari M Baquero-Ruiz W Bertsche P. D Bowe E Butler A Capra C. L Cesar M Charlton A Deller N Evetts S Eriksson J Fajans M. C Fujiwara D. R Gill A Gutierrez J. S Hangst W. N Hardy M. E Hayden C. A Isaac S Jonsell L Kurchaninov A Little N Madsen J. T. K McKenna S Menary S. C Napoli K Olchanski A Olin P Pusa C. O Rasmussen F Robicheaux E Sarid D. M Silveira C So S Stracka R. I Thompson D. P. van der Werf J. S Wurtele Dirk van der Werf Niels Madsen Aled Isaac Stefan Eriksson
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container_title	AIP Conference Proceedings
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publishDate	2013
institution	Swansea University
issn	0094-243X
doi_str_mv	10.1063/1.4796068
college_str	Faculty of Science and Engineering
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department_str	School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
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description	Long term magnetic confinement of antihydrogen atoms has recently been demonstrated by the ALPHA collaboration at CERN, opening the door to a range of experimental possibilities. Of particular interest is a measurement of the antihydrogen spectrum. A precise comparison of the spectrum of antihydrogen with that of hydrogen would be an excellent test of CPT symmetry. One prime candidate for precision CPT tests is the ground-state hyperfine transition; measured in hydrogen to a precision of nearly one part in 1012. Effective execution of such an experiment with trapped antihydrogen requires precise knowledge of the magnetic environment. Here we present a solution that uses an electron plasma confined in the antihydrogen trapping region. The cyclotron resonance of the electron plasma is probed with microwaves at the cyclotron frequency and the subsequent heating of the electron plasma is measured through the plasma quadrupole mode frequency. Using this method, the minimum magnetic field of the neutral trap can be determined to within 4 parts in 104. This technique was used extensively in the recent demonstration of resonant interaction with the hyperfine levels of trapped antihydrogen atoms.
published_date	2013-12-31T03:16:43Z
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Electron plasmas as a diagnostic tool for hyperfine spectroscopy of antihydrogen

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