Physics with Electrons in the ATLAS Detector

Physics with Electrons in the ATLAS Detector This thesis presents two production cross-section measurements of pairs of massive bosons using final states with leptons, made with the ATLAS detector at the Large Hadron Collider. The first measurement, performed using data collected in 2012 at center-of-mass energy s = 8 TeV, is the first fiducial and di erential cross-section measurement of the production of the Higgs Boson when it decays to four charged leptons (electrons or muons). The second measurement is the first fiducial and inclusive production cross-section measurement of WZ pairs at center-of-mass energy s = 13 TeV using final states with three charged leptons.A significant portion of the thesis focuses on the methods used to identify electrons from massive boson decay-important for many agship measurements-and on assessing the e ciency of these particle identification techniques. The chapter discussing the WZ pair cross-section measurement provides a detailed example of an estimate of lepton background in the context of an analysis with three leptons in the final state. Autor: Kurt Brendlinger Wydawnictwo: Springer Rok wydania: 2019 Okładka: miękka Liczba stron: 250 Wymiary: 23.5 x 15.5 cm Ilustracje: 109 Illustrations, color; 35 Illustrations, black and white; XX, 250 p. 144 illus., 109 illus. in color. Język: angielski ISBN: 9783319892627