C Arcidiacono et al 2009 J. Phys. B: At. Mol. Opt. Phys. 42 065205 doi:10.1088/0953-4075/42/6/065205
C Arcidiacono, J Beale, Z D Pešić1, Á Kövér2 and G Laricchia
Show affiliationsThe energy distributions of positrons scattered around 0° from H2O have been measured in coincidence with the remnant ions (H2O+, OH+ and H+) at 100 eV and 153 eV incident energies. The maxima of the distributions (d2σ/dE+dΩ) associated with the production of OH+ and H+ are about 5–10 times smaller than that for H2O+. At both incident energies, a small shoulder has been observed at ~28 eV in the energy loss spectra associated with H2O+ production possibly arising from a shake-up band associated with the 2a1 orbital. The branching ratios for the H+ and HO+ fragments are also presented.
Issue 6 (28 March 2009)
Received 13 January 2009, in final form 6 February 2009
Published 9 March 2009
C Arcidiacono et al 2009 J. Phys. B: At. Mol. Opt. Phys. 42 065205
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