  In the forthcoming high-luminosity phase of the LHC many of the most
interesting measurements for precision QCD studies are hampered by large
pile-up conditions, especially at not very high transverse momenta. However,
with the recently discovered Higgs boson, which couples in the heavy top limit
directly to gluons, we have access to a novel production process to probe QCD
by a colour-singlet current. In this study we compare observables in Higgs
boson and Drell-Yan production and investigate whether measuring ratios or
subtractions can yield results that are stable in high pile-up environments,
and yet sensitive to (small-$p_{\text{T}}$) QCD physics in gluon fusion
processes. We present results of Monte Carlo event generator calculations for a
few specific examples.

High Energy Physics - Phenomenology