Browsing by Author "Majewski, Stephanie"

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Reconstructing the Top Quark in a Search for a Pair-Produced Supersymmetric Partner in the All-Hadronic plus Missing Energy Final State Using $139$~$\text{fb}^{-1}$ of $\sqrt{s}=13$~TeV Proton-Proton Collisions Delivered by the Large Hadron Collider and Collected by the ATLAS Detector

Bonilla, Johan (University of Oregon, 2020-02-27)

The Large Hadron Collider (LHC), the world's most powerful particle accelerator, is operated by the CERN laboratory near Geneva, Switzerland and was built to probe the tera-electron-volt energy scale in search of New ...
Search for the Flavor-Changing Neutral Current in Top Pair Events in sqrt(s) = 8 TeV Proton-Proton Collisions at the Large Hadron Collider Using the ATLAS Detector

Brost, Elizabeth (University of Oregon, 2016-10-27)

In this dissertation, a search for the flavor-changing neutral current in top-antitop events is presented. The flavor-changing neutral current is forbidden at tree level in the Standard Model and suppressed at higher order ...
Two Searches for Signals of Dark Matter with the ATLAS Detector in 139 ifb of LHC $\sqrt{s}$ = 13 TeV Proton-Proton Collision Data

Gledhill, Galen (University of Oregon, 2023-03-24)

This dissertation presents two searches for signals of dark matter in an integrated luminosity of 139 ifb of proton-proton collision data collected at a center of mass energy of $\sqrt{s}$ = 13 TeV with the ATLAS detector ...
Visualizing TopoCluster Algorithms for the Global Trigger

Mason, Sylvia; Mason, Sylvia (University of Oregon, 2020)

There is a Standard Model of particles and forces that explain the fundamental components of matter. However, this model is incomplete, seeing as we currently understand only about 5% of our universe. The Large Hadron ...