59 citations · 82 across the 4 of their papers we have counts for
4 papers
Systematic study of the decay rates of antiprotonic helium states
H. Yamaguchi, R. S. Hayano, T. Ishikawa +8
A systematic study of the decay rates of antiprotonic helium (\pbhef and \pbhet) at CERN AD (Antiproton Decelerator) has been made by a laser spectroscopic method. The decay rates…
Precise laser spectroscopy of the antiprotonic helium atom and CPT test on antiproton mass and charge
H. Yamaguchi, J. Eades, R. S. Hayano +8
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…
Hyperfine structure of antiprotonic helium revealed by a laser-microwave-laser resonance method
E. Widmann, R. S. Hayano, T. Ishikawa +9
Using a newly developed laser-microwave-laser resonance method, we observed a pair of microwave transitions between hyperfine levels of the state of antiprotonic he…
Hyperfine Structure Measurements of Antiprotonic Helium and Antihydrogen
E. Widmann, J. Eades, R. S. Hayano +8
This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antipr…