Formation of small water cluster anions by attachment of very slow electrons at high resolution *
Fachbereich Physik, Universität Kaiserslautern, 67663 Kaiserslautern, Germany
Published online: 15 December 1999
Using a high resolution laser photoelectron attachment method, we have studied the formation of (q = 2, 6, 7, 11, 15) cluster ions in collisions of slow free electrons (E = 1- and Rydberg electrons (n = 12-300) with water clusters. Resonances at zero energy have been observed, the shapes of which are strongly dependent on cluster size. The results are discussed in terms of the formation of metastable negative ions.
PACS: 34.80.Lx – Electron-ion recombination and electron attachment / 36.40.-c – Atomic and molecular clusters / 36.40.Qv – Stability and fragmentation of clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999