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Download or read book A Study of Highly-energetic Top Quarks Produced in Proton-proton Collisions Performed with the ATLAS Detector written by Kyle Cormier and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highly-energetic pairs of top quarks produced at the LHC are studied using the ATLAS detector. The analyzed data corresponds to 36.1 fb −1 of proton-proton collisions with a centre-of-mass energy of 13 TeV, which were collected in 2015 and 2016. Measurements are made of differential cross-sections as a function of 13 kinematic variables describing the top quark system and compared to Standard Model predictions. The study focuses on tt̄ events where both the top and anti-top quark have large transverse momentum and decay into hadrons. Events are selected by requiring two large-radius jets in the detector. Jet substructure techniques are used to separate the signal from other hadronic final states, and the background is estimated using a data-driven technique. Results are corrected for detector effects and statistical comparisons are made with Standard Model calculations performed using Monte Carlo event generators. The results show general agreement between the data and predictions.