Toward a description of electron-induced dissociative excitation in H2O+ : Investigation of three resonances above the B? state

Electron-induced dissociative excitation (DE) is a little studied process of significant applied relevance. Our aim to provide theoretical counterpart earlier experiments [M. J. Jensen, R. C. Bilodeau, O. Heber, H. B. Pedersen, P. Safvan, X. Urbain, D. Zajfman, and L. Andersen, Phys. Rev. A 60, 2970 (1999)] on DE H$_2$O$^+$. For this purpose, we have performed low-energy fixed-nuclei scattering calculations, based the R-matrix method, for over 1800 geometries We identified characterized three resonances lying above second (B) excited state H$_2$O$^+$; their energy, lifetime, associated quantum defect been determined. assess possible contribution process.