The ASACUSA CUSP

an antihydrogen experiment

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 & 13 others M. Tajima, H. A. Torii, L. Venturelli, B. Wünschek, J. Zmeskal, N. Zurlo, H. Higaki, Y. Kanai, E. Lodi Rizzini, Y. Nagashima, Y. Matsuda, E. Widmann, Y. Yamazaki

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In order to test CPT symmetry between antihydrogen and its counterpart hydrogen, the ASACUSA collaboration plans to perform high precision microwave spectroscopy of ground-state hyperfine splitting of antihydrogen atom in-flight. We have developed an apparatus (“cusp trap”) which consists of a superconducting anti-Helmholtz coil and multiple ring electrodes. For the preparation of slow antiprotons and positrons, Penning-Malmberg type traps were utilized. The spectrometer line was positioned downstream of the cusp trap. At the end of the beamline, an antihydrogen beam detector was located, which comprises an inorganic Bismuth Germanium Oxide (BGO) single-crystal scintillator housed in a vacuum duct and surrounding plastic scintillators. A significant fraction of antihydrogen atoms flowing out the cusp trap were detected.

Original languageEnglish
Pages (from-to)13-20
Number of pages8
JournalHyperfine Interactions
Volume235
Issue number1-3
DOIs
Publication statusPublished - Nov 1 2015

Fingerprint

Phosphors
Microwave spectroscopy
cusps
traps
Atoms
Positrons
Ducts
Ground state
scintillation counters
Spectrometers
Hydrogen
Experiments
Single crystals
Vacuum
germanium oxides
Plastics
Detectors
bismuth oxides
Electrodes
antiprotons

Keywords

  • Antihydrogen
  • Atomic beam
  • CPT invariance
  • Rydberg atom

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Kuroda, N., Ulmer, S., Murtagh, D. J., Van Gorp, S., Nagata, Y., Diermaier, M., ... Yamazaki, Y. (2015). The ASACUSA CUSP: an antihydrogen experiment. Hyperfine Interactions, 235(1-3), 13-20. https://doi.org/10.1007/s10751-015-1205-1

The ASACUSA CUSP : an antihydrogen experiment. / 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.; Suzuki, K.; Tajima, M.; Torii, H. A.; Venturelli, L.; Wünschek, B.; Zmeskal, J.; Zurlo, N.; Higaki, H.; Kanai, Y.; Rizzini, E. Lodi; Nagashima, Y.; Matsuda, Y.; Widmann, E.; Yamazaki, Y.

In: Hyperfine Interactions, Vol. 235, No. 1-3, 01.11.2015, p. 13-20.

Research output: Contribution to journalArticle

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, Wünschek, B, Zmeskal, J, Zurlo, N, Higaki, H, Kanai, Y, Rizzini, EL, Nagashima, Y, Matsuda, Y, Widmann, E & Yamazaki, Y 2015, 'The ASACUSA CUSP: an antihydrogen experiment', Hyperfine Interactions, vol. 235, no. 1-3, pp. 13-20. https://doi.org/10.1007/s10751-015-1205-1
Kuroda N, Ulmer S, Murtagh DJ, Van Gorp S, Nagata Y, Diermaier M et al. The ASACUSA CUSP: an antihydrogen experiment. Hyperfine Interactions. 2015 Nov 1;235(1-3):13-20. https://doi.org/10.1007/s10751-015-1205-1
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. ; Suzuki, K. ; Tajima, M. ; Torii, H. A. ; Venturelli, L. ; Wünschek, B. ; Zmeskal, J. ; Zurlo, N. ; Higaki, H. ; Kanai, Y. ; Rizzini, E. Lodi ; Nagashima, Y. ; Matsuda, Y. ; Widmann, E. ; Yamazaki, Y. / The ASACUSA CUSP : an antihydrogen experiment. In: Hyperfine Interactions. 2015 ; Vol. 235, No. 1-3. pp. 13-20.
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AU - Nagata, Y.

AU - Diermaier, M.

AU - Federmann, S.

AU - Leali, M.

AU - Malbrunot, C.

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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 - Wünschek, B.

AU - Zmeskal, J.

AU - Zurlo, N.

AU - Higaki, H.

AU - Kanai, Y.

AU - Rizzini, E. Lodi

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AU - Matsuda, Y.

AU - Widmann, E.

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