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Higgs boson as a gluon trigger: The study of QCD in high pile-up environments

par Van Haevermaet, Hans;Cipriano, Pedro Miguel Ribeiro P.;Dooling, Samantha Katherine S.;Grebenyuk, Anastasia ;Gunnellini, Paolo;Hautmann, Francesco;Jung, Hannes;Katsas, Panagiotis
Référence Pos proceedings of science, 28-April-2014, 163
Publication Publié, 2014

Article révisé par les pairs

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Résumé :

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.