Barberán Falcón, NúriaGarcia Molina, RafaelGras Martí, Alberto2009-10-222009-10-2219890163-1829https://hdl.handle.net/2445/9762We calculate the ripplon field contribution to the self-energy of an electron exterior to a liquid for planar and spherical geometries. We compare the full dielectric calculation of the electron-liquid interaction with the simpler alternative method consisting of integrating the electron-atom static-induced-dipolar potential through the whole liquid volume. We obtain good agreement between both methods for a nonpolar liquid such as 4He but differences up to 40% for a polar liquid such as water. We study the conditions under which the ripplon contribution to the self-energy is a perturbation. For an electron moving parallel to a planar liquid surface, we calculate the ripplon contribution to its stopping power. For this dynamical case, we conclude that the alternative method is a good approximation even for polar liquids.10 p.application/pdfeng(c) The American Physical Society, 1989Física de l'estat sòlidTeoria quànticaSolid state physicsQuantum theoryinfo:eu-repo/semantics/article43609info:eu-repo/semantics/openAccess