Yf. Zhu et al., SPIN-ORBIT AUTOIONIZATION AND INTENSITIES IN THE DOUBLE-RESONANT DELAYED PULSED-FIELD THRESHOLD PHOTOIONIZATION OF HCL, The Journal of chemical physics, 100(12), 1994, pp. 8633-8640
State-selected delayed pulsed-field threshold photoionization spectra
of HCl and DCl are recorded in double-resonant transitions through the
F (1) Delta, E (1) Sigma(+), and g (3) Sigma(-) states of the 4p pi R
ydberg configuration. Comparison of observed rotational line strengths
with calculated spectra, as well as with available time-of-flight pho
toelectron spectra, provides useful insight on the influence of spin-o
rbit and rotational autoionization on delayed pulsed-field threshold p
hotoionization of HCl. Spin-orbit and rotational autoionization are se
en to dramatically reduce the ion rotational intensity associated with
the upper spin-orbit level of the ion.