CERN Accelerating science

CERN Theses

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Search for Dark Matter in the Upgraded High Luminosity LHC at CERN: Sensitivity of ATLAS phase II upgrade to dark matter production / Hallsjö, Sven-Patrik
The LHC at CERN is now undergoing a set of upgrades to increase the center of mass energy for the colliding particles to be able to explore new physical processes [...]

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An Introduction to ATLAS Pixel Detector DAQ and Calibration Software Based on a Year's Work at CERN for the Upgrade from 8 to 13 TeV / Dreyer, Nicholas David
An overview is presented of the ATLAS pixel detector Data Acquisition (DAQ) system obtained by the author during a year-long opportunity to work on calibration software for the 2015-16 Layer‑2 upgrade [...]
CERN-THESIS-2016-305 - 59 p.

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Development and Optimisation of the SPS and LHC beam diagnostics based on Synchrotron Radiation monitors / Trad, Georges
Measuring the beam transverse emittance is fundamental in every accelerator, in particular for colliders, where its precise determination is essential to maximize the luminosity and thus the performance of the colliding beams.
 Synchrotron Radiation (SR) is a versatile tool for non-destructive bea [...]
CERN-THESIS-2014-390 - 232 p.

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Desenvolvimento de um metodo alternativo para analise do Dalitz plot do canal $D^+ \to K^- K^+ \pi^+$ / Martins Tostes, Danielle
The violation of the charge conjugation and parity combined symmetry, or simply CP violation, is one of the necessary conditions to explain the matter-antimatter assymmetry [...]
2012. - 109 p.

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Study of the very forward electromagnetic component produced in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the LHCf experiment / Tiberio, Alessio
The main purpose of the LHCf experiment is to test phenomenological hadronic interaction models used to simulate cosmic rays induced air-showers in the Earth's atmosphere [...]
CERN-THESIS-2017-045 - 129 p.

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Upgrading the Interface and Developer Tools of the Trigger Supervisor Software Framework of the CMS experiment at CERN / Dirkx, Glenn
The Compact Muon Solenoid (CMS) Trigger Supervisor (TS) is a software framework that has been designed to handle the CMS Level-1 trigger setup, configuration and monitoring during data taking as well as all communications with the main run control of CMS [...]
CERN-THESIS-2016-303 - 258 p.

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Search for new physics in the tau plus missing energy final states at CMS / Padeken, Klaas Ole
In this thesis the first search for a heavy charged vector boson W' in the final state with a hadronicaly decaying tau lepton and two neutrinos is described.The analysed data include 20 fb-1 of LHC proton proton collisions at sqrt(s) = 8 TeV as well as 2.3 fb-1 at sqrt(s) = 13 TeV recorded with the [...]
CERN-THESIS-2017-044 - 203 p.

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Thermophysical and mechanical characterization of advanced materials for the LHC collimation system / Bianchi, Laura
The aim of the thesis is to describe the methods employed for the thermo-physical and mechanical characterization and to show the results of the campaign conducted over two ceramic matrix composites, CFC FS140® and MG-6403-Fc, which are candidates as jaws materials in the LHC collimation system [...]
CERN-THESIS-2017-043 - 133 p.

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Vol. 39 - Cryogenic Fiber Optic Sensors for Superconducting Magnets and Power Transmission Lines in High Energy Physics Applications / Chiuchiolo, Antonella
In the framework of the Luminosity upgrade of the Large Hadron Collider (HL - LHC), a remarkable R&D effort is now ongoing at the European Organization for Nuclear Research (CERN) in order to develop a new generation of accelerator magnets and superconducting power transmission lines [...]
CERN-THESIS-2015-401 - Warsaw, Poland : Warsaw University of Technology Publishing House, 2015.

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Correlation Measurement of $\Lambda^{0}$$\overline{\Lambda}$$^{0}$ $\Lambda^{0}$$\Lambda^{0}$ and $\overline{\Lambda}$$^{0}$$\overline{\Lambda}$$^{0}$ with the ATLAS Detector at $\sqrt{s}$=7 TeV / Cheng, Hok Chuen
This thesis summaries the measurements of correlations between Lambda0-anti-Lambda0, Lambda0-Lambda0 and anti-Lambda0-anti-Lambda0 hyperon pairs produced inclusively at the LHC, which are useful for a better understanding of the quark-antiquark pair production and jet fragmentation and hadronization [...]
CERN-THESIS-2017-042 - 215 p.

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CERN Doctoral Student Program (500)
CERN Technical Student Program (58)