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# ATLAS Theses

2022-06-17
22:02
 Identifying Electrons and Searching for Electroweak R-Parity Violating Supersymmetry at ATLAS / Flores, Lucas Macrorie In this thesis a search for particles in the context of the theory of supersymmetry (SUSY) as well as algorithms for reconstructing and identifying electrons are detailed [...] CERN-THESIS-2021-334 - 134 p.

2022-06-16
16:26
 Haystacks and Needles - Measuring the number of proton collisions in ATLAS and probing them for the production of new exotic particles / Ripellino, Giulia This thesis describes my work on the ATLAS luminosity measurement and on two searches for physics beyond the Standard Model, performed using $\sqrt{s} = 13$ TeV proton-proton ($pp$) collision data recorded by the ATLAS detector at CERN during Run 2 of the LHC in the years 2015-2018 [...] CERN-THESIS-2022-067 ISBN:978-91-8040-268-2 ; TRITA-SCI-FOU:2022:30. - 277 p.

2022-06-16
08:33
 Machine learning for ttH mechanism Higgs boson detection from CERN ATLAS data / Presperin, Jan One aspect of studying subatomic particles by observing proton-proton collision is being able to identify those collisions where the particles of interest occur, since thousands of collisions are happening in an accelerator such as the Large Hadron Collider (LHC) at any given time [...] CERN-THESIS-2022-066 - 72 p.

2022-06-15
20:19
 Application of Machine Learning for the Charged Higgs Boson Search Using ATLAS Data / Pospisil, Jiri The discovery of the Higgs boson (2012) motivated scientists searching for charged Higgs bosons [...] CERN-THESIS-2022-065 - 52 p.

2022-06-15
19:54
 Machine Learning for the Leptoquark Search Using CERN ATLAS Data / Vicenik, Lukas In this thesis, we improve the cross-section limit for pair production of third-generation scalar Leptoquark decaying into a top quark and a tau-lepton and design a method to predict its mass [...] CERN-THESIS-2022-064 - 105 p.

2022-06-15
10:15
 Cross section measurements of the Higgs boson exploiting the $H\rightarrow\tau\tau$ decay mode and their combination with other decay modes using the ATLAS detector / Becherer, Fabian This thesis presents cross section measurements of the Higgs boson exploiting the $H \rightarrow \tau \tau$ decay mode and their combination with other decay modes using the ATLAS detector [...] CERN-THESIS-2022-062 - https://doi.org/10.6094/UNIFR/226907 : Albert Ludwigs Universitaet Freiburg, 2022-05-24. - 278 p.

2022-06-15
02:56
 Continuing the Search for Nothing: Invisible Higgs Boson Decays and High Luminosity Upgrades at the ATLAS Detector / Rosser, Benjamin John This thesis presents two main projects involving the ATLAS experiment at the Large Hadron Collider: a search for invisible decays of the Higgs boson produced via vector boson fusion, and the design and simulation of an application specific integrated circuit produced for the Inner Tracker Strip dete [...] CERN-THESIS-2021-333 - 331 p.

2022-06-14
21:31
 Search for events with two displaced vertices from pair-produced neutral long-lived particles decaying to hadronic jets in the muon spectrometer of the ATLAS detector with full Run 2 data / Kvam, Audrey Katherine This analysis is a search for events with two displaced vertices reconstructed from the decay of pair-produced neutral, weakly-interacting, long-lived particles using the muon spectrometer of the ATLAS detector [...] CERN-THESIS-2022-061 - 152 p.

2022-06-14
17:54
 search for pair production of higgs bosons decaying to four bottom quarks with data collected by the ATLAS detector / Borgna, Lucas Santiago CERN-THESIS-2021-332 - 240 p.

2022-06-09
17:20
 Determination of Background from Misreconstructed Electrons in $t\overline{t}\gamma$ Single Lepton Channel at the $\sqrt{s}=13$ TeV with $139$ fb$^{-1}$ of ATLAS Data / Raza, Agha Mohammad A measurement of electron-to-photon fake rate using $139$fb$^{-1}$ of $pp$ collisions collected by the ATLAS detector in 2015 to 2018 is presented [...] CERN-THESIS-2020-411 - 68 p.