A source of antihydrogen for in-flight hyperfine spectroscopy

N. Kuroda; S. Ulmer; D. J. Murtagh; S. Van Gorp; Y. Nagata; M. Diermaier; S. Federmann; M. Leali; C. Malbrunot; V. Mascagna; O. Massiczek; K. Michishio; T. Mizutani; A. Mohri; H. Nagahama; M. Ohtsuka; B. Radics; S. Sakurai; C. Sauerzopf; K. Suzuki; M. Tajima; H. A. Torii; L. Venturelli; B. Wuâ̈nschek; J. Zmeskal; N. Zurlo; H. Higaki; Y. Kanai; E. Lodi Rizzini; Y. Nagashima; Y. Matsuda; E. Widmann; Y. Yamazaki

doi:10.1038/ncomms4089

A source of antihydrogen for in-flight hyperfine spectroscopy

N. Kuroda^*, S. Ulmer, D. J. Murtagh, S. Van Gorp, Y. Nagata, M. Diermaier, S. Federmann, M. Leali, C. Malbrunot, V. Mascagna, O. Massiczek, K. Michishio, T. Mizutani, A. Mohri, H. Nagahama, M. Ohtsuka, B. Radics, S. Sakurai, C. Sauerzopf, K. SuzukiM. Tajima, H. A. Torii, L. Venturelli, B. Wuâ̈nschek, J. Zmeskal, N. Zurlo, H. Higaki, Y. Kanai, E. Lodi Rizzini, Y. Nagashima, Y. Matsuda, E. Widmann, Y. Yamazaki

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

128 Citations (Scopus)

Abstract

Antihydrogen, a positron bound to an antiproton, is the simplest antiatom. Its counterpart - hydrogen - is one of the most precisely investigated and best understood systems in physics research. High-resolution comparisons of both systems provide sensitive tests of CPT symmetry, which is the most fundamental symmetry in the Standard Model of elementary particle physics. Any measured difference would point to CPT violation and thus to new physics. Here we report the development of an antihydrogen source using a cusp trap for in-flight spectroscopy. A total of 80 antihydrogen atoms are unambiguously detected 2.7 m downstream of the production region, where perturbing residual magnetic fields are small. This is a major step towards precision spectroscopy of the ground-state hyperfine splitting of antihydrogen using Rabi-like beam spectroscopy.

Original language	English
Article number	3089
Journal	Nature communications
Volume	5
DOIs	https://doi.org/10.1038/ncomms4089
Publication status	Published - 2014 Jan 21
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

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10.1038/ncomms4089

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Kuroda, N., Ulmer, S., Murtagh, D. J., Van Gorp, S., Nagata, Y., Diermaier, M., Federmann, S., Leali, M., Malbrunot, C., Mascagna, V., Massiczek, O., Michishio, K., Mizutani, T., Mohri, A., Nagahama, H., Ohtsuka, M., Radics, B., Sakurai, S., Sauerzopf, C., ... Yamazaki, Y. (2014). A source of antihydrogen for in-flight hyperfine spectroscopy. Nature communications, 5, [3089]. https://doi.org/10.1038/ncomms4089

Kuroda, N, Ulmer, S, Murtagh, DJ, Van Gorp, S, Nagata, Y, Diermaier, M, Federmann, S, Leali, M, Malbrunot, C, Mascagna, V, Massiczek, O, Michishio, K, Mizutani, T, Mohri, A, Nagahama, H, Ohtsuka, M, Radics, B, Sakurai, S, Sauerzopf, C, Suzuki, K, Tajima, M, Torii, HA, Venturelli, L, Wuâ̈nschek, B, Zmeskal, J, Zurlo, N, Higaki, H, Kanai, Y, Lodi Rizzini, E, Nagashima, Y, Matsuda, Y, Widmann, E & Yamazaki, Y 2014, 'A source of antihydrogen for in-flight hyperfine spectroscopy', Nature communications, vol. 5, 3089. https://doi.org/10.1038/ncomms4089

@article{5d94a037f7b145d98030688743e18ced,

title = "A source of antihydrogen for in-flight hyperfine spectroscopy",

abstract = "Antihydrogen, a positron bound to an antiproton, is the simplest antiatom. Its counterpart - hydrogen - is one of the most precisely investigated and best understood systems in physics research. High-resolution comparisons of both systems provide sensitive tests of CPT symmetry, which is the most fundamental symmetry in the Standard Model of elementary particle physics. Any measured difference would point to CPT violation and thus to new physics. Here we report the development of an antihydrogen source using a cusp trap for in-flight spectroscopy. A total of 80 antihydrogen atoms are unambiguously detected 2.7 m downstream of the production region, where perturbing residual magnetic fields are small. This is a major step towards precision spectroscopy of the ground-state hyperfine splitting of antihydrogen using Rabi-like beam spectroscopy.",

author = "N. Kuroda and S. Ulmer and Murtagh, {D. J.} and {Van Gorp}, S. and Y. Nagata and M. Diermaier and S. Federmann and M. Leali and C. Malbrunot and V. Mascagna and O. Massiczek and K. Michishio and T. Mizutani and A. Mohri and H. Nagahama and M. Ohtsuka and B. Radics and S. Sakurai and C. Sauerzopf and K. Suzuki and M. Tajima and Torii, {H. A.} and L. Venturelli and B. Wu{\^a}̈nschek and J. Zmeskal and N. Zurlo and H. Higaki and Y. Kanai and {Lodi Rizzini}, E. and Y. Nagashima and Y. Matsuda and E. Widmann and Y. Yamazaki",

note = "Funding Information: We would like to express our gratitude towards the AD group of CERN. We are thankful towards the Proton Synchrotron operational staff, the CERN cryogenics laboratory, CERN EN department and the CERN RF group. We should also acknowledge ASACUSA collaboration members, and all former CUSP subgroup members for their help and fruitful discussions. This work was supported by the Grant-in-Aid for Specially Promoted Research (no. 24000008) of the Japanese Ministry of Education, Culture, Sports, Science and Technology (Monbukakagu-sho), Special Research Projects for Basic Science of RIKEN, RIKEN FPR programme, RIKEN IRU programme, European Research Council under European Union{\textquoteright}s Seventh Framework Programme (FP7/2007-2013)/ ERC Grant agreement (291242), the Austrian Ministry of Science and Research, Uni-versit{\`a} di Brescia and Istituto Nazionale di Fisica Nucleare.",

year = "2014",

month = jan,

day = "21",

doi = "10.1038/ncomms4089",

language = "English",

volume = "5",

journal = "Nature communications",

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T1 - A source of antihydrogen for in-flight hyperfine spectroscopy

AU - Kuroda, N.

AU - Ulmer, S.

AU - Murtagh, D. J.

AU - Van Gorp, S.

AU - Nagata, Y.

AU - Diermaier, M.

AU - Federmann, S.

AU - Leali, M.

AU - Malbrunot, C.

AU - Mascagna, V.

AU - Massiczek, O.

AU - Michishio, K.

AU - Mizutani, T.

AU - Mohri, A.

AU - Nagahama, H.

AU - Ohtsuka, M.

AU - Radics, B.

AU - Sakurai, S.

AU - Sauerzopf, C.

AU - Suzuki, K.

AU - Tajima, M.

AU - Torii, H. A.

AU - Venturelli, L.

AU - Wuâ̈nschek, B.

AU - Zmeskal, J.

AU - Zurlo, N.

AU - Higaki, H.

AU - Kanai, Y.

AU - Lodi Rizzini, E.

AU - Nagashima, Y.

AU - Matsuda, Y.

AU - Widmann, E.

AU - Yamazaki, Y.

N1 - Funding Information: We would like to express our gratitude towards the AD group of CERN. We are thankful towards the Proton Synchrotron operational staff, the CERN cryogenics laboratory, CERN EN department and the CERN RF group. We should also acknowledge ASACUSA collaboration members, and all former CUSP subgroup members for their help and fruitful discussions. This work was supported by the Grant-in-Aid for Specially Promoted Research (no. 24000008) of the Japanese Ministry of Education, Culture, Sports, Science and Technology (Monbukakagu-sho), Special Research Projects for Basic Science of RIKEN, RIKEN FPR programme, RIKEN IRU programme, European Research Council under European Union’s Seventh Framework Programme (FP7/2007-2013)/ ERC Grant agreement (291242), the Austrian Ministry of Science and Research, Uni-versità di Brescia and Istituto Nazionale di Fisica Nucleare.

PY - 2014/1/21

Y1 - 2014/1/21

N2 - Antihydrogen, a positron bound to an antiproton, is the simplest antiatom. Its counterpart - hydrogen - is one of the most precisely investigated and best understood systems in physics research. High-resolution comparisons of both systems provide sensitive tests of CPT symmetry, which is the most fundamental symmetry in the Standard Model of elementary particle physics. Any measured difference would point to CPT violation and thus to new physics. Here we report the development of an antihydrogen source using a cusp trap for in-flight spectroscopy. A total of 80 antihydrogen atoms are unambiguously detected 2.7 m downstream of the production region, where perturbing residual magnetic fields are small. This is a major step towards precision spectroscopy of the ground-state hyperfine splitting of antihydrogen using Rabi-like beam spectroscopy.

AB - Antihydrogen, a positron bound to an antiproton, is the simplest antiatom. Its counterpart - hydrogen - is one of the most precisely investigated and best understood systems in physics research. High-resolution comparisons of both systems provide sensitive tests of CPT symmetry, which is the most fundamental symmetry in the Standard Model of elementary particle physics. Any measured difference would point to CPT violation and thus to new physics. Here we report the development of an antihydrogen source using a cusp trap for in-flight spectroscopy. A total of 80 antihydrogen atoms are unambiguously detected 2.7 m downstream of the production region, where perturbing residual magnetic fields are small. This is a major step towards precision spectroscopy of the ground-state hyperfine splitting of antihydrogen using Rabi-like beam spectroscopy.

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U2 - 10.1038/ncomms4089

DO - 10.1038/ncomms4089

M3 - Article

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SN - 2041-1723

VL - 5

JO - Nature communications

JF - Nature communications

M1 - 3089

ER -

A source of antihydrogen for in-flight hyperfine spectroscopy

Abstract

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