Measurement of the ground-state hyperfine structure of antihydrogen

B. Juhász, D. Barna, J. Eades, R. S. Hayano, M. Hori, D. Horváth, W. Pirkl, E. Widmann, T. Yamazaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The ASACUSA collaboration at CERN-AD has recently submitted a proposal to measure the hyperfine splitting of the ground state of antihydrogen in an atomic beam apparatus [ASACUSA proposal addendum, CERN/SPSC 2005-002, SPSC P-307 Add.1 (2005)]. The apparatus consists of two sextupoles for spin selection and analysis, and a microwave cavity to flip the spin. This method has the advantage that antihydrogen atoms of temperatures up to 150 K 'evaporating' from a formation region can be used. Numerical simulations show that such an experiment is feasible if ∼100 antihydrogen atoms per second can be produced in the ground state, and that an accuracy of better than 10-6 can be reached. This measurement will be a precise test of the CPT invariance.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages243-246
Number of pages4
Volume796
DOIs
Publication statusPublished - Oct 26 2005
EventLOW ENERGY ANTIPROTON PHYSICS: 8th International Conference on Low Energy Antiproton Physics, LEAP'05 - Bonn, Germany
Duration: May 16 2005May 22 2005

Other

OtherLOW ENERGY ANTIPROTON PHYSICS: 8th International Conference on Low Energy Antiproton Physics, LEAP'05
CountryGermany
CityBonn
Period5/16/055/22/05

Fingerprint

hyperfine structure
proposals
ground state
atomic beams
atoms
invariance
microwaves
cavities
simulation
temperature

Keywords

  • Antihydrogen
  • CPT symmetry
  • Hyperfine structure
  • Microwave resonance

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Juhász, B., Barna, D., Eades, J., Hayano, R. S., Hori, M., Horváth, D., ... Yamazaki, T. (2005). Measurement of the ground-state hyperfine structure of antihydrogen. In AIP Conference Proceedings (Vol. 796, pp. 243-246) https://doi.org/10.1063/1.2130173

Measurement of the ground-state hyperfine structure of antihydrogen. / Juhász, B.; Barna, D.; Eades, J.; Hayano, R. S.; Hori, M.; Horváth, D.; Pirkl, W.; Widmann, E.; Yamazaki, T.

AIP Conference Proceedings. Vol. 796 2005. p. 243-246.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Juhász, B, Barna, D, Eades, J, Hayano, RS, Hori, M, Horváth, D, Pirkl, W, Widmann, E & Yamazaki, T 2005, Measurement of the ground-state hyperfine structure of antihydrogen. in AIP Conference Proceedings. vol. 796, pp. 243-246, LOW ENERGY ANTIPROTON PHYSICS: 8th International Conference on Low Energy Antiproton Physics, LEAP'05, Bonn, Germany, 5/16/05. https://doi.org/10.1063/1.2130173
Juhász B, Barna D, Eades J, Hayano RS, Hori M, Horváth D et al. Measurement of the ground-state hyperfine structure of antihydrogen. In AIP Conference Proceedings. Vol. 796. 2005. p. 243-246 https://doi.org/10.1063/1.2130173
Juhász, B. ; Barna, D. ; Eades, J. ; Hayano, R. S. ; Hori, M. ; Horváth, D. ; Pirkl, W. ; Widmann, E. ; Yamazaki, T. / Measurement of the ground-state hyperfine structure of antihydrogen. AIP Conference Proceedings. Vol. 796 2005. pp. 243-246
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