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ATLAS Theses

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2024-04-18
01:19
Search for di-Higgs production and measurement of the Higgs boson self-coupling in the final state with a pair of b quarks and a pair of tau leptons with the ATLAS detector at the LHC, Perspectives on the measurement of the Higgs boson mass and the electron-positron to ZH cross-section at the Future Circular Collider / Li, Ang
After the discovery of the Higgs boson in 2012 by the ATLAS and CMS collaborations at the Large Hadron Collider (LHC), precision measurements of the Higgs boson mass and couplings have taken center stage, serving both the validation of the Standard Model (SM) and the exploration for new physics Be [...]
CERN-THESIS-2024-035 - 320 p.


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2024-04-17
12:48
Test with Modules for the ATLAS ITk Pixel Detector / Grun, Niklas
Currently, the preparation for the upgrade of the High Luminosity Large Hadron Collider (HL-LHC) is ongoing [...]
CERN-THESIS-2024-034 II.Physik-UniGö-BSc-2023/09. - 56 p.


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2024-04-16
15:08
A search for heavy neutral gauge bosons and dark-sector particles with the ATLAS detector / Haaland, Even Simonsen
The Standard Model of particle physics is currently the best theory we have for describing the most fundamental particles and interactions in Nature, and its validity is proven over a large range of energies [...]
CERN-THESIS-2023-383 - 264 p.


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2024-04-11
18:39
A Precise Measurement of the Lifetime of $B^{0}_{d}$-mesons, Measurement of $CP$-violation Parameters of $B_{s}^{0}$-mesons, the ATLAS Experiment at the LHC, and Development of Silicon Detectors for Future Particle Physics Experiments / Narayanan, Easwar Anand
A series of connected research projects has been carried out for the purpose of seeking physics phenomena beyond the Standard Model [...]
CERN-THESIS-2024-032 - 355 p.


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2024-04-08
10:34
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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2024-03-28
17:07
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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2024-03-25
14:00
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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2024-03-25
09:43
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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2024-03-23
16:17
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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2024-03-22
21:12
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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