## Publicly Accessible Penn Dissertations

#### Title

Physics With Electrons to the Atlas Detector

2016

Dissertation

#### Degree Name

Doctor of Philosophy (PhD)

Physics & Astronomy

Ira J. Kroll

#### Abstract

This thesis presents two diboson measurements with the ATLAS experiment. The first is a differential measurement of Higgs boson observables in the four-lepton decay channel at $\sqrt{s}=8$ TeV. The second presents a first measurement of the WZ diboson production cross section in the three-lepton decay channel at $\sqrt{s}=13$ TeV. Special emphasis is given to the identification techniques of prompt electrons, particularly the likelihood identification first introduced in 2012 data taking, and electron efficiency measurements in the ATLAS detector.

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