The study of QCD in high pile-up environments : Higgs boson and Drell-Yan production
Faculty of Sciences. Physics
Cedex a :E d p sciences
EPJ Web of Conferences
44th International Symposium on Multiparticle Dynamics (ISMD), SEP 08-12, 2014, Bologna, ITALY
, 5 p.
University of Antwerp
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-pT) QCD physics in gluon fusion processes. We present results of Monte Carlo event generator calculations for a few specific examples.