ROTATIONALLY RESOLVED MULTIPHOTON IONIZATION PHOTOELECTRON-SPECTROSCOPY OF THE [A(1)DELTA]3D-PI(2)PHI AND [A(1)DELTA]5P-PI(2)PHI RYDBERG STATES OF THE SH RADICAL

Experimental and theoretical results on the rotationally resolved phot oelectron spectra of the [a (1) Delta]3d pi (2) Phi(upsilon'=0) and th e [a (1) Delta]5p pi (2) Phi(upsilon'=0) Rydberg states of the SH radi cal are presented. In particular, for the former state, ionization via a large number of members of different rotational branches is conside red. The interplay between experiment and ab initio calculations, incl uding alignment, allows for a detailed interpretation of the results. Asymmetries apparent in the rotational ionic distributions and the obs erved suppression of transitions involving a large change in angular m omentum can be explained on the basis of the theory. (C) 1997 American Institute of Physics.