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High precision laser spectroscopy of antiprotonic helium atoms

A study was performed on high precision laser spectroscopy of antiprotonic helium atoms. Antiprotonic helium is an exotic metastable three-body system consisting of helium nucleus, an electron and an antiproton. In the experiments at the CERN antiproton decelerator, the experimental values were comp...

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Detalles Bibliográficos
Autor principal: Hayano, Ryugo
Lenguaje:eng
Publicado: 2003
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0584-8547(03)00061-2
http://cds.cern.ch/record/710580
Descripción
Sumario:A study was performed on high precision laser spectroscopy of antiprotonic helium atoms. Antiprotonic helium is an exotic metastable three-body system consisting of helium nucleus, an electron and an antiproton. In the experiments at the CERN antiproton decelerator, the experimental values were compared with three-body quantum electro-dynamics calculations and it was deduced that the antiproton and proton charges and masses agree to within 6 multiplied by 10**-**8. (Edited abstract) 13 Refs.