| Article | |
| Title | Determination of the antiproton-to-electron mass ratio by precision laser spectroscopy of $\overline{p}He^{+}$ |
| Author(s) | Hori, M (Univ. Tokyo ; CERN) ; Dax, A (Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan) ; Eades, John (Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan) ; Gomikawa, K (Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan) ; Hayano, R S (Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan) ; Ono, N (Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan) ; Pirkl, Werner (Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan) ; Widmann, E (Stefan Meyer Institut für Subatomare Physik, Boltzmanngasse 3, Vienna 1090, Austria) ; Torii, H A (Institute of Physics, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan) ; Juhász, B (Stefan Meyer Institut für Subatomare Physik, Boltzmanngasse 3, Vienna 1090, Austria ; 5Institute of Nuclear Research of the Hungarian Academy of Sciences, H-4001 Debrecen, Hungary) ; Barna, D (Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan ; KFKI Research Institute for Particle and Nuclear Physics, H-1525 Budapest, Hungary) ; Horváth, D (KFKI Research Institute for Particle and Nuclear Physics, H-1525 Budapest, Hungary) |
| Publication | 2006 |
| In: | Phys. Rev. Lett. 96 (2006) 243401/1-4 |
| DOI | 10.1103/PhysRevLett.96.243401 |
| Subject category | Other Fields of Physics |
| Abstract | A femtosecond optical frequency comb and continuous-wave pulse- amplified laser were used to measure 12 transition frequencies of antiprotonic helium to fractional precisions of (9-16) 10/sup -9lifetimes hitherto unaccessible to our precision laser spectroscopy method. Comparisons with three-body QED calculations yielded an antiproton-to-electron mass ratio of M/sub pmacron//m/sub e/=1836.152 674(5). |
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Zapis kreiran 2007-02-08, zadnja izmjena 2016-04-13
