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Hyperfine Interactions

, 237:103 | Cite as

Towards measuring the ground state hyperfine splitting of antihydrogen – a progress report

  • C. Sauerzopf
  • A. A. Capon
  • M. Diermaier
  • P. Dupré
  • Y. Higashi
  • C. Kaga
  • B. Kolbinger
  • M. Leali
  • S. Lehner
  • E. Lodi Rizzini
  • C. Malbrunot
  • V. Mascagna
  • O. Massiczek
  • D. J. Murtagh
  • Y. Nagata
  • B. Radics
  • M. C. Simon
  • K. Suzuki
  • M. Tajima
  • S. Ulmer
  • S. Vamosi
  • S. van Gorp
  • J. Zmeskal
  • H. Breuker
  • H. Higaki
  • Y. Kanai
  • N. Kuroda
  • Y. Matsuda
  • L. Venturelli
  • E. Widmann
  • Y. Yamazaki
Article
Part of the following topical collections:
  1. Proceedings of the 6th International Symposium on Symmetries in Subatomic Physics (SSP 2015), Victoria, Canada, 8-12 June 2015

Abstract

We report the successful commissioning and testing of a dedicated field-ioniser chamber for measuring principal quantum number distributions in antihydrogen as part of the ASACUSA hyperfine spectroscopy apparatus. The new chamber is combined with a beam normalisation detector that consists of plastic scintillators and a retractable passivated implanted planar silicon (PIPS) detector.

Keywords

Antihydrogen Precision spectroscopy CPT Field-ioniser PIPS 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • C. Sauerzopf
    • 1
  • A. A. Capon
    • 1
  • M. Diermaier
    • 1
  • P. Dupré
    • 3
  • Y. Higashi
    • 4
  • C. Kaga
    • 2
  • B. Kolbinger
    • 1
  • M. Leali
    • 5
    • 6
  • S. Lehner
    • 1
  • E. Lodi Rizzini
    • 5
    • 6
  • C. Malbrunot
    • 1
    • 7
  • V. Mascagna
    • 5
    • 6
  • O. Massiczek
    • 1
  • D. J. Murtagh
    • 3
  • Y. Nagata
    • 3
  • B. Radics
    • 3
  • M. C. Simon
    • 1
  • K. Suzuki
    • 1
  • M. Tajima
    • 4
  • S. Ulmer
    • 8
  • S. Vamosi
    • 1
  • S. van Gorp
    • 3
  • J. Zmeskal
    • 1
  • H. Breuker
    • 7
  • H. Higaki
    • 2
  • Y. Kanai
    • 3
  • N. Kuroda
    • 3
  • Y. Matsuda
    • 4
  • L. Venturelli
    • 5
    • 6
  • E. Widmann
    • 1
  • Y. Yamazaki
    • 3
  1. 1.Stefan Meyer Institute for subatomic physics, Austrian Academy of SciencesViennaAustria
  2. 2.Graduate School of Advanced Sciences of MatterHiroshima UniversityKangamiyama, Higashi-HiroshimaJapan
  3. 3.Atomic Physics Laboratory, RIKENSaitamaJapan
  4. 4.Institute of Physics, Graduate School of Arts and SciencesUniversity of TokyoTokyoJapan
  5. 5.Dipartimento di Ingegneria dell’ InformazioneUniversità di BresciaBresciaItaly
  6. 6.Sez. INFN di PaviaRomeItaly
  7. 7.Organisation Européenne pour la Recherche Nucléaire (CERN)Geneva 23Switzerland
  8. 8.Ulmer Initiative Research Unit, RIKENSaitamaJapan

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