Determination of the Antiproton-to-Electron Mass Ratio by Precision Laser Spectroscopy ofp¯He+ | Zendy

M. Hori | Zendy; A. Dax | Zendy; J. Eades | Zendy; K. Gomikawa | Zendy; R. Hayano | Zendy; N. ONO | Zendy; W. Pirkl | Zendy; E. Widmann | Zendy; H. Torii | Zendy; B. Juhász | Zendy; D. Barna | Zendy; D. Horváth | Zendy

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Determination of the Antiproton-to-Electron Mass Ratio by Precision Laser Spectroscopy ofp¯He+

Author(s) -

M. Hori,

A. Dax,

J. Eades,

K. Gomikawa,

R. Hayano,

N. ONO,

W. Pirkl,

E. Widmann,

H. Torii,

B. Juhász,

D. Barna,

D. Horváth

Publication year - 2006

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.96.243401

Subject(s) - spectroscopy , antiproton , femtosecond , physics , laser , atomic physics , mass ratio , electron , proton , optics , nuclear physics , quantum mechanics , astrophysics

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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