2 papers
physics.atom-ph2004
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…
nucl-ex2003
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…