Oscillations in Coincident Molecular-Orbital Auger Spectra Emitted in 450-keVKr+4+ Kr Collisions

Abstract
With use of coincidence techniques, oscillations in energy spectra of electrons produced in impact-parameter—controlled 450-keV Kr+4 + Kr collissions have been observed. The decay of an autoionizing state of the Kr—Kr quasimolecule is found to be the dominant electron emission mechanism. The superposition of the emission amplitudes for the incoming and the outgoing parts of the nuclear trajectory explains very well the oscillatory pattern.