J. Phys. II France 2 (1992) 801-812
XUV-laser spectroscopy on CO: isotope-selective predissociation ratesPieternel F. Levelt, Wim Ubachs and Wim Hogervorst
Laser Centre Free University, Department of Physics and Astronomy, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
(Received 5 November 1991, accepted 18 December 1991)
The K (4p ) , v=0 and W (3s ) , v=2 states in 12C 16O and 13C 16O have been studied in high resolution with extreme ultraviolet laser radiation in the wavelength range 94-97 nm. Accurate spectroscopic constants for both isotopes and states have been derived from absolute rotational line positions. From linewidths of individual rotational transitions predissociation rates for 12C 16 and 13C 16O in the W state have been deduced: CO) s -1 and CO) s -1. The rate of photodissociation of K , v=0 was found to be smaller: s -1 for both isotopes.
33.20N - 33.80G - 98.40C
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