Deep interference minima in experimental ionization differential cross sections - art. no. 012714

A deep, narrow interference minimum that exists for symmetric noncoplanar ( e,2e) ionization experiments, first discovered in helium, has now been foun d in neon. In helium, the 1s electron is ionized, whereas in neon, the mini mum is observed ionizing the inner 2s electron. The depth of the measured m inima indicates that a simple, underlying coherent process is occurring in the reaction.