scholarly journals Rotational branching ratios and photoelectron angular distributions in resonance enhanced multiphoton ionization of HBr via the F 1Δ2 Rydberg state

1991 ◽  
Vol 95 (11) ◽  
pp. 7872-7879 ◽  
Author(s):  
Kwanghsi Wang ◽  
V. McKoy
Keyword(s):  
Rydberg State ◽  
Multiphoton Ionization ◽  
Branching Ratios ◽  
Angular Distributions ◽  
Photoelectron Angular Distributions

Vibrational-state dependence of partial cross sections and photoelectron angular distributions through autoionizing resonances: the n =3 Rydberg state converging to the B 2 Ʃ + state of CO +

1981 ◽  
Vol 378 (1774) ◽  
pp. 423-435 ◽  
Keyword(s):  
Cross Sections ◽  
Vibrational Level ◽  
Rydberg State ◽  
State Dependence ◽  
Branching Ratios ◽  
Angular Distributions ◽  
Condon Factors ◽  
Franck Condon ◽  
Photoelectron Angular Distributions ◽  
Existing Data

The branching ratios for leaving the CO + ion in a particular vibrational level of the ground X 2 Ʃ + state have been determined as functions of photon energy through the n = 3 autoionizing Rydberg state converging to the B 2 Ʃ + state of CO + ; there are substantial differences between theoretical and experimental Franck-Condon factors when ‘on’ resonance. The branching ratios have been converted into absolute partial cross sections by normalizing to existing data obtained by using line sources. The asymmetry parameter β has also been determined for each vibrational level in this spectral range. Considerable variations in both have been observed in the region of this resonance.

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