Analytic expressions of the direct, resonant and interference contributions to the differential cross section of a resonant Auger process, produced by the photoionization of a linear molecule either "fixed-in-space" or belonging to a gas of randomly oriented molecules, have been derived following Dill's procedures but going beyond the two-step approximation. Angle-resolved Auger spectra of the C2H2 molecule measured on top of the C1s->pi* resonance have been calculated and compared with experiments, analysing also the different contributions to the electron angular distributions.
Ab initio calculation of angle-resolved resonant Auger spectra of C2H2 / R.Colle; D.Embriaco; M.Massini; S.Simonucci; S.Taioli. - STAMPA. - 28F:(2004), pp. 2-29-2-29. (Intervento presentato al convegno 8th EPS Conference on Atomic and Molecular Physics tenutosi a Rennes, France nel 6-10 July 2004).
Ab initio calculation of angle-resolved resonant Auger spectra of C2H2
COLLE, RENATO;
2004
Abstract
Analytic expressions of the direct, resonant and interference contributions to the differential cross section of a resonant Auger process, produced by the photoionization of a linear molecule either "fixed-in-space" or belonging to a gas of randomly oriented molecules, have been derived following Dill's procedures but going beyond the two-step approximation. Angle-resolved Auger spectra of the C2H2 molecule measured on top of the C1s->pi* resonance have been calculated and compared with experiments, analysing also the different contributions to the electron angular distributions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
