Abstract
A new interference mechanism, analogous to ``classic'' double-slit electron scattering, has been identified in low-energy ion-atom collisions. This Coulomb ``path'' interference results from the existence of two trajectories, indistinguishable with respect to laboratory energy and emission angle, along which ejected autoionizing electrons may be scattered by the attractive Coulomb potential of the slowly receding spectator ion. A simple semiclassical description is presented. Calculated model line shapes are in excellent ageement with the strong angular dependence of the interference structure observed in the He-target 2${\mathit{s}}^{2}$ $^{1}$S autoionizing line shape measured near 0\ifmmode^\circ\else\textdegree\fi{} following 10-keV ${\mathrm{He}}^{+}$+He collisions.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
