  We present a study on differentiating direct production mechanisms of the
newly discovered Higgs-like boson at the LHC based on several inclusive
observables. The ratios introduced reveal the parton constituents or initial
state radiations involved in the production mechanisms, and are directly
sensitive to fractions of contributions from different channels. We select
three benchmark models, including the SM Higgs boson, to illustrate how the
theoretical predictions of the above ratios are different for the $gg$, $b\bar
b(c\bar c)$, and $q\bar q$ (flavor universal) initial states in the direct
production. We study implications of current Tevatron and LHC measurements. We
also show expectations from further LHC measurements with high luminosities.
