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CERN Accelerating science

The theses collection aims to cover as well as possible all theses in particle physics and its related fields.
The collection starts with the thesis of Feynman, defended in 1942, and covers now alltogether more than 3000 theses. Most of the documents are held as hard copies, theses from later years are available electronically. (Note also that many theses are not physically held by the CERN Library.)

Theses

2022-06-22
18:06
 Optimising the present and designing the future: a novel SPS injection system / Waagaard, Elias Walter The Super Proton Synchrotron (SPS) injection system plays a fundamental role to preserve the quality of injected high-brightness beams for the Large Hadron Collider (LHC) physics program and to maintain the maximum storable intensity [...] CERN-THESIS-2022-070 - 50 p.

2022-06-20
13:44
 Search for a $HH$ production in the $b \bar{b} ZZ(4l)$ final state at $\sqrt{s} = 13$TeV with full Run II data / Margjeka, Ilirjan A search for resonant and non-resonant double Higgs boson production at the LHC with the CMS experiment is presented [...] CMS-TS-2022-009 ; CERN-THESIS-2022-068. - 2022. - 218 p.

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
12:08
 Scintillation light detection techniques in a 750-ton liquid argon TPC for the Deep Underground Neutrino Experiment / Soto Oton, Jose Alfonso The experimental confirmation of the neutrino oscillations, and therefore the non-zero neutrino mass, opened a new era of physics beyond the Standard Model of particle physics [...] CERN-THESIS-2022-063 -

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.