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Improved Study of the Antiprotonic Helium Hyperfine Structure

We report the initial results from a systematic study of the hyperfine (HF) structure of antiprotonic helium (n,l) = (37,~35) carried out at the Antiproton Decelerator (AD) at CERN. We performed a laser-microwave-laser resonance spectroscopy using a continuous wave (cw) pulse-amplified laser system...

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Detalles Bibliográficos
Autores principales: Pask, T., Barna, D., Dax, A., Hayano, R.S., Hori, M., Horvath, D., Juhasz, B., Malbrunot, C., Marton, J., Ono, N., Suzuki, K., Zmeskal, J., Widmann, E.
Lenguaje:eng
Publicado: 2008
Materias:
Acceso en línea:https://dx.doi.org/10.1088/0953-4075/41/8/081008
http://cds.cern.ch/record/1093059
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author Pask, T.
Barna, D.
Dax, A.
Hayano, R.S.
Hori, M.
Horvath, D.
Juhasz, B.
Malbrunot, C.
Marton, J.
Ono, N.
Suzuki, K.
Zmeskal, J.
Widmann, E.
author_facet Pask, T.
Barna, D.
Dax, A.
Hayano, R.S.
Hori, M.
Horvath, D.
Juhasz, B.
Malbrunot, C.
Marton, J.
Ono, N.
Suzuki, K.
Zmeskal, J.
Widmann, E.
author_sort Pask, T.
collection CERN
description We report the initial results from a systematic study of the hyperfine (HF) structure of antiprotonic helium (n,l) = (37,~35) carried out at the Antiproton Decelerator (AD) at CERN. We performed a laser-microwave-laser resonance spectroscopy using a continuous wave (cw) pulse-amplified laser system and microwave cavity to measure the HF transition frequencies. Improvements in the spectral linewidth and stability of our laser system have increased the precision of these measurements by a factor of five and reduced the line width by a factor of three compared to our previous results. A comparison of the experimentally measured transition frequencies with three body QED calculations can be used to determine the antiproton spin magnetic moment, leading towards a test of CPT invariance.
id cern-1093059
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2008
record_format invenio
spelling cern-10930592019-09-30T06:29:59Zdoi:10.1088/0953-4075/41/8/081008http://cds.cern.ch/record/1093059engPask, T.Barna, D.Dax, A.Hayano, R.S.Hori, M.Horvath, D.Juhasz, B.Malbrunot, C.Marton, J.Ono, N.Suzuki, K.Zmeskal, J.Widmann, E.Improved Study of the Antiprotonic Helium Hyperfine Structurephysics.atom-phWe report the initial results from a systematic study of the hyperfine (HF) structure of antiprotonic helium (n,l) = (37,~35) carried out at the Antiproton Decelerator (AD) at CERN. We performed a laser-microwave-laser resonance spectroscopy using a continuous wave (cw) pulse-amplified laser system and microwave cavity to measure the HF transition frequencies. Improvements in the spectral linewidth and stability of our laser system have increased the precision of these measurements by a factor of five and reduced the line width by a factor of three compared to our previous results. A comparison of the experimentally measured transition frequencies with three body QED calculations can be used to determine the antiproton spin magnetic moment, leading towards a test of CPT invariance.We report the initial results from a systematic study of the hyperfine (HF) structure of antiprotonic helium (n,l) = (37,~35) carried out at the Antiproton Decelerator (AD) at CERN. We performed a laser-microwave-laser resonance spectroscopy using a continuous wave (cw) pulse-amplified laser system and microwave cavity to measure the HF transition frequencies. Improvements in the spectral linewidth and stability of our laser system have increased the precision of these measurements by a factor of five and reduced the line width by a factor of three compared to our previous results. A comparison of the experimentally measured transition frequencies with three body QED calculations can be used to determine the antiproton spin magnetic moment, leading towards a test of CPT invariance.arXiv:0803.0876oai:cds.cern.ch:10930592008-03-07
spellingShingle physics.atom-ph
Pask, T.
Barna, D.
Dax, A.
Hayano, R.S.
Hori, M.
Horvath, D.
Juhasz, B.
Malbrunot, C.
Marton, J.
Ono, N.
Suzuki, K.
Zmeskal, J.
Widmann, E.
Improved Study of the Antiprotonic Helium Hyperfine Structure
title Improved Study of the Antiprotonic Helium Hyperfine Structure
title_full Improved Study of the Antiprotonic Helium Hyperfine Structure
title_fullStr Improved Study of the Antiprotonic Helium Hyperfine Structure
title_full_unstemmed Improved Study of the Antiprotonic Helium Hyperfine Structure
title_short Improved Study of the Antiprotonic Helium Hyperfine Structure
title_sort improved study of the antiprotonic helium hyperfine structure
topic physics.atom-ph
url https://dx.doi.org/10.1088/0953-4075/41/8/081008
http://cds.cern.ch/record/1093059
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