Precise laser spectroscopy of the antiprotonic helium atom and CPT test on antiproton mass and charge

We have measured twelve transition frequencies of the antiprotonic helium atom (pbar-He+) with precisions of 0.1--0.2 ppm using a laser spectroscopic method. The agreement between the experiment and theories was so good that we can put a limit on the proton-antiproton mass (or charge) difference. Th...

Descripción completa

Detalles Bibliográficos
Autores principales: Yamaguchi, H, Eades, John, Hayano, R S, Hori, Masaki, Horváth, D, Ishikawa, T, Juhász, B, Sakaguchi, J, Torii, H A, Widmann, E, Yamazaki, T
Lenguaje:eng
Publicado: 2003
Materias:
Other Fields of Physics
Acceso en línea:https://dx.doi.org/10.1016/S0375-9474(03)01102-3
http://cds.cern.ch/record/609648
Descripción
Sumario:We have measured twelve transition frequencies of the antiprotonic helium atom (pbar-He+) with precisions of 0.1--0.2 ppm using a laser spectroscopic method. The agreement between the experiment and theories was so good that we can put a limit on the proton-antiproton mass (or charge) difference. The new limit is expected to be much smaller than the already published value, 60 ppb.

Ejemplares similares