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ATLAS Theses

High Level Trigger Optimization Studies in the ATLAS search for Higgs Boson Pair Production in the $\text{HH} \rightarrow b\bar{b} \tau^+_\text{had} \tau^-_\text{had} $ channel / Sudhakar Ponnu, Athul Dev
The Standard Model of particle physics predicts the existence of the trilinear Higgs self coupling vertex [...]
CERN-THESIS-2023-377 II.Physik-UniGö-MSc-2023/03. - 92 p.

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Precision measurements in neutral current Drell-Yan production at ATLAS / Blumenthal, Julian
The Large Hadron Collider (LHC) at CERN is a powerful machine to facilitate collisions of hadrons such as protons [...]
CERN-THESIS-2023-373 - 314 p.

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Measurement of top-quark-pair and $Z$-boson production cross sections and their ratio in $pp$ collisions at $\sqrt{s}~=~13.6$ TeV with the ATLAS detector / Guerrieri, Giovanni
This thesis presents one of the first measurements performed by the ATLAS collaboration using proton--proton collisions at the centre-of-mass energy of $13.6$ TeV, employing 29 fb${}^{-1}$ of data collected in 2022 at the Large Hadron Collider [...]
CERN-THESIS-2024-019 - 217 p.

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Search for intrinsic charm in the proton at the ATLAS experiment / Boccardo, Lucrezia
The dynamics of strong interactions and the internal content of the proton have been a matter of interest for particle physics ever since the discovery of quarks [...]
CERN-THESIS-2023-367 - 131 p.

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Search for new hadronically decaying resonances with masses down to 20 GeV in pp collisions using the ATLAS Detector at the Large Hadron Collider / Henkelmann, Lars
Many proposed models of physics beyond the Standard Model of particle physics (BSM) predict new resonances [...]
CERN-THESIS-2023-366 - 199 p.

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Search for the Higgs boson produced in association with a top quark using $\tau$ leptons with ATLAS / Martinez Agullo, Pablo
This thesis presents the search for a Higgs boson produced in association with a single top quark ($tHq$) in the final state characterised by two light leptons and one hadronically decaying tau ($2\ell+\tau_{\text{had}}$) [...]
CERN-THESIS-2024-018 - 373 p.

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Development of high energy particle time-of-flight detector / Komarek, Tomas
This dissertation covers the development of AFP-ToF, a fast timing detector system intended for use as a part of the ATLAS project at the LHC accelerator [...]
CERN-THESIS-2023-365 - 150 p.

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Measurement of the $H \rightarrow WW^{*} \rightarrow l\nu l\nu$ decay using same-flavour leptons in $\textit{pp}$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector / Karava, Kla
Higgs boson production via gluon-gluon fusion and vector-boson fusion in the $\textit{H} \rightarrow \textit{WW*} \rightarrow l\nu l\nu$ decay mode is measured in the same-flavour channel, where the two leptons are either both electrons or both muons [...]
CERN-THESIS-2023-363 - 234 p.

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Enlightening a tiny difference: Measurement of top quark pair charge asymmetry in $t\bar{t}+\gamma$ production at LHC using the ATLAS detector at $\sqrt{s}$ = 13 TeV / Rej, Amartya
A first measurement of the top quark pair charge asymmetry ($A_{C}$) is presented in top quark pair ($t\bar{t}$) production in association with a photon ($t\bar{t}\gamma$ production), using the data of ATLAS experiment with an integrated luminosity of 139 $fb^{-1}$ collected at proton-proton colli [...]
CERN-THESIS-2023-356 - Siegen, Germany : University of Siegen, 2023-12-19. - 177 p.

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An improved description of the $Z$-boson mass lineshape, and a first joint analysis of electroweak parameters and parton distribution functions with the ATLAS experiment at the LHC / Tafoya Vargas, Juan Salvador
The work reported in this thesis is presented in two parts [...]
CERN-THESIS-2024-014 2023UPASP121 ; tel-04496186. - 328 p.

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