Collider studies on jet and heavy flavour properties
2018 September 20
2018 November 23
The Large Hadron Collider at CERN is the world’s most efficient jet factory. In this report the properties of jets will be discussed, with focus on reconstructed jets in the ATLAS, CMS and LHCb experiments. After a brief introduction of jet physics at colliders, a selection of the results on inclusive QCD jet production cross sections, jets originated from the hadronization of b quarks and top quarks final states will be shown, with special attention on the comparisons with the Monte Carlo generators predictions at the highest possible order in perturbative QCD, using proton-proton collisions data at the center of mass energy $\sqrt s$ = 7, 8 and 13 TeV. Details on the measurements of the running of the strong coupling constant as well as the differential cross sections for the inclusive jet production in ATLAS and CMS are presented. An overview of the state-of-art algorithms for the b-quark tagging, following the measurement of the b-jets produc- tion in association with a Z boson in CMS and the decay of a Z boson to bottom quarks in LHCb are shown. The top quark pair production physics is then introduced, and the cross section mea- surement in forward region with LHCb is shown. Finally, predictions of the color flow between quarks are tested using angular considerations in top events in ATLAS.