Theoretical study on the photofragment branching ratios and anisotropy parameters of ICl in the second absorption band

- A long-standing problem in the photodissociation of ICl has been resolved.
- Absorption intensities to 0+(III) and 0+(IV) have a comparable magnitude.
- Quantum interference between the dissociation paths on 0+(III) and 0+(IV) was a key.
- Branching ratios and beta parameters are in agreement between experiment and theory.
- An interpretation based on a time-dependent perturbation treatment is given.