FIZIKA A 7 (1998) 1, 1-9

### THE COMPLETE'' p-p EXPERIMENT

Z. ROLLER-LUTZ and Y. WANG

Fakultät für Physik, Universität Bielefeld, 33501 Bielefeld, Germany

We are reporting on an experiment leading from an initial optically pumped p to a final p state, in which all relevant amplitudes and phases can be determined. In particular, the charge exchange reaction H+ Na(3p+-1} \rightarrow H(2p) + Na+ was studied at a projectile energy of 2 keV. This is the first quantum mechanically complete experiment with a non-isotropic initial state leading to a non-isotropic final state.