Exp eriments on exotic atom
sp ectroscopy
D Gotta
Institut fur Kernphysik Forschungszentrum Julic h D Julic h
Germany
Abstract Results are reviewed from recent exotic atom exp eriments
using a fo cussing Bragg sp ectrometer The measured energies of the
L X rays from antiprotonic hydrogen and deuterium and the K
transition from pionic deuterium are compared to the transition ener
gies as calculated from quantum electro dynamics in order to determine