  In the forthcoming high-luminosity phase at the LHC many of the most
interesting measurements for precision QCD studies are hampered by conditions
of large pile-up, particularly at not very high transverse momenta. We study
observables based on measuring ratios of color-singlet currents via Higgs boson
and Drell-Yan production, which may be accessed also at large pile-up, and used
for an experimental program on QCD physics of gluon fusion processes in the LHC
high-luminosity runs. We present results of Monte Carlo calculations for a few
specific examples.
