Titlebook: Search for New Physics in tt ̅ Final States with Additional Heavy-Flavor Jets with the ATLAS Detecto; Javier Montejo Berlingen Book 2016 T

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Book 2016he full Run 1 dataset collected by the ATLAS experiment in proton-proton collisions at √s=8 TeV. The final state of interest consists of an isolated lepton, a neutrino and at least six jets with at least four b-tagged jets, a challenging experimental signature owing to the large background from tt+h

pericardium

The ATLAS Experiment at the Large Hadron Collider,ursuit an ambitious physics program, where the first milestone was the discovery of the Higgs boson, achieved in 2012 (ATLAS Collaboration, Phys Lett B 716:1, 2012, [.], CMS Collaboration, Phys Lett B 716:30, 2012 [.]). This chapter introduces CERN’s accelerator complex and describes the main aspects of the ATLAS detector at the LHC.

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Reconstruction of Physics Objects,ation, reconstruction and calibration of electrons, muons, jets, .-jets and missing transverse energy is discussed in detail. A brief description of the systematic uncertainties associated with these physics objects is also included.

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chiropractor

Searches for New Physics in , Final States with Additional Heavy-Flavor Jets,All searches share a common preselection, background description and systematic uncertainty model, as described in Chap. .. For each search, the event selection cuts, event categorization and the discriminant variable used are studied in detail and optimized based on the different features of the pr

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