Progress in precision laser spectroscopy of{\displaystyle\overline{p}}-He |
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| Authors: | Dániel Barna |
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| Institution: | 1. University of Tokyo, Department of Physics, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
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| Abstract: | The mass of the antiproton (the antiproton-electron mass ratio $m_{\overline{p}}/m_e$ ) can be deduced from laser spectroscopy measurements of antiprotonic helium, compared to 3-body QED calculations. The most precise spectroscopy measurements have so far been limited by Doppler-broadening at finite temperatures. The status of our ongoing precision measurements is presented, within the framework of the Asacusa experiment at CERN. |
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