Browsing Faculty of Arts and Sciences by Keyword "ATLAS"
Now showing items 1-7 of 7
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A search for long-lived particles with large ionization energy loss in the ATLAS silicon pixel detector using 139 fb^{-1} of sqrt{s} = 13 TeV pp collisions
(2021-07-12)The results from a search for long-lived, heavy charged particles with the ATLAS Run-2 dataset are presented. As charged particles move through a material, the amount of energy they lose via ionization depends only on their ... -
Measurement of the Cross-Section for W Boson Production in Association with b-Jets in Proton-Proton Collisions at \(\sqrt s = 7\) TeV at the LHC using the ATLAS detector
(2013-08-21)This dissertation presents a measurement of the W+b-jets \((pp → W + b(\bar{b}) + X)\) production cross-section in proton–proton collisions at a center-of-mass energy of 7 TeV at the LHC. The results are based on data ... -
Measurement of the mass and natural width of the Higgs boson in the H to ZZ to 4l decay channel with the ATLAS detector
(2014-10-21)This thesis presents a measurement of the mass, natural width, and signal strength, defined as the yield normalized to the Standard Model prediction, of the Higgs boson in the \(H \rightarrow ZZ^{(*)} \rightarrow 4l\) decay ... -
Measurement of the WZ Production Cross Section in Proton-Proton Collision at \(\sqrt s = 7 TeV\) and Limits on Anomalous Triple Gauge Couplings with the ATLAS Detector
(2013-08-28)In this dissertation, we present a study of WZ production in proton-proton collisions at a center-of-mass energy of 7 TeV. The data analyzed was collected by the ATLAS detector and corresponds to an integrated luminosity ... -
Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector
(Springer Nature, 2016)The large rate of multiple simultaneous proton--proton interactions, or pile-up, generated by the Large Hadron Collider in Run 1 required the development of many new techniques to mitigate the adverse effects of these ... -
Searching for heavy, charged, long-lived particles via ionization energy loss and time-of-flight in the ATLAS detector using 140 fb$^{−1}$ of $\sqrt{s}$ = 13 TeV proton-proton collision data
(2023-06-01)Many extensions to the Standard Model predict the existence of new, massive, long-lived particles. Such heavy particles produced in proton-proton collisions at center-of-mass energy $\sqrt{s}$ = 13 TeV are expected to move ... -
The first differential cross section measurements of $t\bar{t}$ produced with a $W$ boson in $pp$ collisions
(2022-06-06)Measurements of inclusive $\ttW^\pm$ production cross sections performed by the ATLAS and CMS collaborations have consistently shown excesses of 20\%-70\% over theoretical predictions. These observations have lead to a ...