activity
19962016
most citedSearch for Anomalous Production of Di-lepton Events with Missing Transverse Momentum in e+e- Collisions at sqrt(s) = 183-209 GeV

144 citations · 1.4k across the 45 of their papers we have counts for

collaborators

44 papers

physics.ins-det2016★ 13 cited

Repeating Pulsed Magnet System for Axion-like Particle Searches and Vacuum Birefringence Experiments

T. Yamazaki, T. Inada, T. Namba +5

We have developed a repeating pulsed magnet system which generates magnetic fields of about 10 T in a direction transverse to an incident beam over a length of 0.8 m with a repetit…

hep-ex2013★ 81 cited

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…

hep-ex2011

First direct measurement of positronium hyperfine splitting with sub-THz light

T. Yamazaki, A. Miyazaki, T. Suehara +8

Positronium is an ideal system for the research of the bound state QED. The hyperfine splitting of positronium (Ps-HFS, about 203 GHz) is an important observable but all previous m…

hep-ex2010★ 4 cited

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…

hep-ex2010★ 2 cited

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…

hep-ex2010★ 1 cited

Precise measurement of Hyper Fine Structure of positronium using sub-THz light

S. Asai, T. Suehara, T. Yamazaki +9

Positronium is an ideal system for the research of the QED, especially for the QED in bound state. The discrepancy of 3.9σis found recently between the measured HFS values and the…