CERN Accelerating science

ATLAS Theses

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2024-03-14
17:17
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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2024-03-08
17:21
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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2024-03-01
15:52
A Search for Decays of the 125 GeV Higgs Boson in the $bb\tau\tau$ Final State with the ATLAS Detector using $p$-$p$ Collisions at $\sqrt{s}$=13 TeV / Nelson, Kevin Michael
This thesis presents a search for decays of the 125 GeV Higgs boson ($h$) to a pair of new (pseudo)scalar particles ($a$), $h\rightarrow aa$, where the $a$-bosons decay to a $b$-quark pair and tau lepton ($\tau$) pair [...]
CERN-THESIS-2023-348 - 313 p.


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2024-02-29
16:58
Higher Order Studies of Polarization Effects in WZ Production at the LHC With Sherpa / Liebig, Johannes Nikolas
Event generators are an important connector between experimental and theoretical particle physics [...]
CERN-THESIS-2024-012 - 55 p.


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2024-02-29
16:40
Sensitivity study of dimension-6 operators in the WZ polarization phase space / Daberstiel, Gregor Kurt Rudolf
Resulting from the Higgs mechanism of electroweak symmetry breaking in the standard model (SM) vector bosons (VB) gain mass and an additional degree of freedom in their possible polarization states [...]
CERN-THESIS-2023-347 - 65 p.


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2024-02-29
11:10
Extension of machine learning methods for the observation of longitudinal vector boson scattering with the ATLAS detector / Neumann, Jose Antolin
In the Standard Model (SM) the Higgs mechanism gives vector bosons (VB) their mass via the electroweak symmetry breaking (EWSB) [...]
CERN-THESIS-2023-346 - 47 p.


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2024-02-21
16:13
Development of a likelihood-based top quark mass measurement using semileptonically decaying $t\bar{t}$+jet events with the full Run 2 ATLAS dataset / Prades Ibanez, Alberto
CERN-THESIS-2023-342 - Valencia : University of Valencia, 2024-01-11. - 310 p.


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2024-02-21
12:21
Leaving No Matter Unturned - Analysing existing LHC measurements and events with jets and missing transverse energy measured by the ATLAS Experiment in search of Dark Matter / Habedank, Martin
Various astrophysical observations point towards an as-of-yet unexplained, mainly gravitationally interacting type of matter [...]
arXiv:2402.13760 ; CERN-THESIS-2023-341 - 2023-08-04. - 313 p.


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2024-02-16
15:50
Search for heavy $WW$ or $WZ$ resonances in the $lvqq$ semileptonic final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / Assalmi, Hassan
This document represents a short overview on my Master's thesis project, which focuses on the search for heavy new resonances decaying into a $WW$ or $WZ$ boson pair in the semileptonic final state where one of the daughter weak bosons decays leptonically to a lepton and a neutrino, while the other [...]
CERN-THESIS-2022-407 - CDS : Assalmi, Hassan, 2022-10-24. - 17 p.


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2024-02-06
16:07
Production and Testing of Prototype Resistive Plate Chambers / Turkovic, Timur
The main topic of this thesis is the development of procedures for the produc- tion of thin-gap RPCs on a industrial scale [...]
CERN-THESIS-2023-330 - 85 p.


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