Ion rotational distributions for near-threshold photoionization of H_2O

Creators: Lee, M.-T.; Wang, Kwanghsi; McKoy, V.; Tonkyn, R. G.; Wiedmann, R. T.; Grant, E. R.; White, Michael G.

Abstract

Ion rotational distributions for single‐photon VUV photoionization of the 1b_1 orbital of the X̃ ^1A_1 ground state of the jet‐cooled water are reported. These spectra reveal significant type a transitions which are seen to arise from odd angular momentum components of the photoelectron matrix element. The resulting photoionization dynamics are quite nonatomic‐like.

Additional Information

© 1992 American Institute of Physics. (Received 5 February 1992; accepted 4 March 1992) Work at the California Institute of Technology was supported by grants from the National Science Foundation, Air Force Office of Scientific Research, and the Office of Health and Environmental Research of the U.S. Department of Energy. We also acknowledge the use of the resources of the Jet Propulsion Laboratory /Caltech Cray YMP2E/116 supercomputer. One of us (M.T.L.) thanks the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Brasil) for financial support. Work at Brookhaven National Laboratory was supported by the U.S. Department of Energy, Office of Basic Energy Sciences under Contract No. DE-AC02-76CH00016. E.R.G. acknowledges support from the National Science Foundation (Grant No. CHE-8920555).

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