  Inelastic collision dynamics between isolated gas-phase carbon monoxide
molecules and low energetic electrons (< 50 eV) has been studied using
state-of-the-art velocity map imaging apparatus and reported previously. These
were based on data analysis using the time-gated parallel slicing technique,
which has recently revealed the drawback of lower momentum ion exaggeration
mainly due to the inclusion of whole Newton sphere's of diameter $\le$ parallel
slicing time window. To overcome this drawback, we report implementing a wedge
slicing technique so that every momentum sphere contributes equally to the
statistics. We also present a comparative study between these two techniques by
reanalyzing the data using the time-gated parallel slicing technique. Unlike
parallel slicing, the wedge slicing technique better represents the
dissociation dynamics, particularly for the ions with low kinetic energy.
