Evidence against atomiclike resonant Auger decay in N-2 doubly excited core states by high-resolution experiments - art. no. 054702

Resonant Auger spectra following the decay of doubly excited core states in N-2 in the range 409-411 eV have previously been assigned to "atomic" line s indicating ultrafast dissociation. Using high-resolution synchrotron radi ation electron spectroscopy from the MAX II facility in Sweden we have reme asured the resonant Auger spectrum of N-2 in the vicinity of the N 1s thres hold. Contrary to earlier studies, we find vibrational progressions that ca n be associated with the final C (2)Sigma (+)(u) and 2 (2)Pi (g), states in N-2(+). We conclude that the decay leads entirely to molecular final state s.