Spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants

Antiprotonic helium atom, a metastable neutral system consisting of an antiproton, an electron and a helium nucleus, was serendipitously discovered, and has been studied at CERN’s antiproton decelerator facility. Its transition frequencies have recently been measured to nine digits of precision by l...

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Autor principal: Hayano, R S
Lenguaje:eng
Publicado: 2010
Materias:
XX
Acceso en línea:https://dx.doi.org/10.2183/pjab.86.1
http://cds.cern.ch/record/1489547
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author Hayano, R S
author_facet Hayano, R S
author_sort Hayano, R S
collection CERN
description Antiprotonic helium atom, a metastable neutral system consisting of an antiproton, an electron and a helium nucleus, was serendipitously discovered, and has been studied at CERN’s antiproton decelerator facility. Its transition frequencies have recently been measured to nine digits of precision by laser spectroscopy. By comparing these experimental results with three-body QED calculations, the antiproton-to-electron massratio was determined as 1836.152674(5). This result contributed to the CODATA recommended values of the fundamental physical constants.
id cern-1489547
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
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spelling cern-14895472019-09-30T06:29:59Zdoi:10.2183/pjab.86.1http://cds.cern.ch/record/1489547engHayano, R SSpectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constantsXXAntiprotonic helium atom, a metastable neutral system consisting of an antiproton, an electron and a helium nucleus, was serendipitously discovered, and has been studied at CERN’s antiproton decelerator facility. Its transition frequencies have recently been measured to nine digits of precision by laser spectroscopy. By comparing these experimental results with three-body QED calculations, the antiproton-to-electron massratio was determined as 1836.152674(5). This result contributed to the CODATA recommended values of the fundamental physical constants.oai:cds.cern.ch:14895472010
spellingShingle XX
Hayano, R S
Spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants
title Spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants
title_full Spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants
title_fullStr Spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants
title_full_unstemmed Spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants
title_short Spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants
title_sort spectroscopy of antiprotonic helium atoms and its contribution to the fundamental physical constants
topic XX
url https://dx.doi.org/10.2183/pjab.86.1
http://cds.cern.ch/record/1489547
work_keys_str_mv AT hayanors spectroscopyofantiprotonicheliumatomsanditscontributiontothefundamentalphysicalconstants

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