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Hyperfine Interactions

, 237:156 | Cite as

Antihydrogen synthesis in a double-CUSP trap towards test of the CPT-symmetry

  • B. Radics
  • S. Ishikawa
  • N. Kuroda
  • D. J. Murtagh
  • Y. Nagata
  • M. Tajima
  • S. Van Gorp
  • Y. Abo
  • P. Dupre
  • Y. Higashi
  • C. Kaga
  • M. Leali
  • V. Mascagna
  • L. Venturelli
  • N. Zurlo
  • H. Breuker
  • H. Higaki
  • Y. Kanai
  • E. Lodi Rizzini
  • Y. Matsuda
  • S. Ulmer
  • Y. Yamazaki
Article
  • 62 Downloads
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

The aim of the ASACUSA-CUSP experiment at CERN is to produce a cold, polarised antihydrogen beam and perform a high precision measurement of the ground-state hyperfine transition frequency of the antihydrogen atom and compare it with that of the hydrogen atom using the same spectroscopic beam line. Towards this goal a significant step was successfully accomplished: synthesised antihydrogen atoms have been produced in a CUSP magnetic configuration and detected at the end of our spectrometer beam line in 2012 [1]. During a long shut down at CERN the ASACUSA-CUSP experiment had been renewed by introducing a new double-CUSP magnetic configuration and a new semi-cylindrical tracking detector (AMT) [2], and by improving the transport feature of low energy antiproton beams. The new tracking detector monitors the antihydrogen synthesis during the mixing cycle of antiprotons and positrons. In this work the latest results and improvements of the antihydrogen synthesis will be presented including highlights from the last beam time.

Keywords

Antihydrogen Antimatter micromegas Tracking Vertex reconstruction CPT symmetry 

References

  1. 1.
    Kuroda, N., et al.: Nat. Commun. 5, 3089 (2014)ADSCrossRefGoogle Scholar
  2. 2.
    Radics, B., et al.: Rev. Sci. Instrum. 86, 083304 (2015)ADSCrossRefGoogle Scholar
  3. 3.
    Radics, B., Murtagh, D.J., Yamazaki, Y., Robicheaux, F.: Phys. Rev. A 90, 032704 (2014)ADSCrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • B. Radics
    • 1
    • 8
  • S. Ishikawa
    • 2
  • N. Kuroda
    • 2
  • D. J. Murtagh
    • 1
  • Y. Nagata
    • 1
  • M. Tajima
    • 2
  • S. Van Gorp
    • 1
  • Y. Abo
    • 3
  • P. Dupre
    • 1
  • Y. Higashi
    • 2
  • C. Kaga
    • 3
  • M. Leali
    • 4
    • 5
  • V. Mascagna
    • 4
    • 5
  • L. Venturelli
    • 4
    • 5
  • N. Zurlo
    • 4
    • 5
  • H. Breuker
    • 6
  • H. Higaki
    • 3
  • Y. Kanai
    • 1
  • E. Lodi Rizzini
    • 4
    • 5
  • Y. Matsuda
    • 2
  • S. Ulmer
    • 7
  • Y. Yamazaki
    • 1
  1. 1.Atomic Physics LaboratoryRIKENSaitamaJapan
  2. 2.Institute of Physics, Graduate School of Arts and SciencesUniversity of TokyoTokyoJapan
  3. 3.Graduate School of Advanced Sciences of MatterHiroshima UniversityHiroshimaJapan
  4. 4.Dipartimento di Ingegneria dell InformazioneUniversita di BresciaBresciaItaly
  5. 5.Istituto Nazionale di Fisica NucleareGruppo Collegato di BresciaBresciaItaly
  6. 6.CERNGeneveSwitzerland
  7. 7.Ulmer Initiative Research UnitRIKENSaitamaJapan
  8. 8.Institute for Particle PhysicsETH ZürichZürichSwitzerland

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