81 citations · 105 across the 7 of their papers we have counts for
6 papers · 1 filter
New Precision Measurement of Hyperfine Splitting of Positronium
A. Ishida, T. Namba, S. Asai +5
The ground state hyperfine splitting of positronium is sensitive to high order corrections of quantum electrodynamics (QED) in bound state. The theoretical predi…
Detection of the Direct Hyperfine Transition of Positronium Atoms using sub-THz High-power Radiation
T. Suehara, A. Miyazaki, T. Yamazaki +11
Hyperfine splitting of positronium is an important parameter for particle physics. This paper gives experimental techniques and results of R&D studies of our experiment to observe…
Probing the Energy Structure of Positronium with a 203 GHz Fabry-Perot Cavity
T Suehara, A Miyazaki, A Ishida +10
Positronium is an ideal system for the research of the bound state QED. The hyperfine splitting of positronium (Ps-HFS: about 203 GHz) is sensitive to new physics beyond the Standa…
New method of precise measurement of positronium hyperfine splitting
A. Ishida, G. Akimoto, Y. Sasaki +8
The ground state hyperfine splitting of positronium, , is sensitive to high order corrections of QED. A new calculation up to has revealed…
Precise measurement of HFS of positronium
A. Ishida, G. Akimoto, K. Kato +11
The ground state hyperfine splitting in positronium, , is sensitive to high order corrections of QED. A new calculation up to has revealed a disc…
Precision measurements of positronium decay rate and energy level
S. Asai, Y. Kataoka, T. Kobayashi +8
Positronium is an ideal system for the research of the bound state QED. New precise measurement of orthopositronium decay rate has been performed with an accuracy of 150 ppm, and t…