CERN Accelerating science

Theses

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2017-05-27
11:22
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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2017-05-27
07:05
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.

CBPF Rio server - Full text
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2017-05-26
10:40
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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2017-05-25
14:22
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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2017-05-24
16:55
Vol. 42 - Measurement based characterisation and modeling of micropixel avalanche photodiodes / Rychter, Andrzej (Warsaw University of Technology) ; Marzec, Janusz (dir.) (Institute of Radioelectronics and Multimedia, WUT)
This dissertation contains a detailed research of new types of Silicon Photomultipliers which have been developed at the beginning of this century. The author was responsible for measuring new types of silicon photomultipliers (SiPM) which were planned to be used as photosensors in the new calorimeter—ECAL0 in COMPASS experiment in CERN. [...]
CERN-THESIS-2016-302.- Warsaw, Poland : Warsaw University of Technology Publishing House, 2016 Fulltext: PDF;

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2017-05-24
16:05
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.


10.18154/RWTH-2017-04198
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2017-05-24
15:58
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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2017-05-24
15:44
Vol. 41 - Dependable control and measurement systems modeling for unmanned spacecraft / Graczyk, Rafał (Warsaw University of Technology) ; Szadkowski, Zbigniew (dir.) (Łodź University) ; Adamski, Tomasz (dir.) (Warsaw University of Technology)
Reliability and processing performance modeling is an important issue for aerospace and space equipment designers. From system level perspective, one has to choose from multitude of possible architectures, redundancy levels, component combinations in a way to meet desired properties and dependability and finally fit within required cost and time budgets. Modeling of such systems is getting harder as its levels of complexity grow together with demand for more functional and flexible, yet more available systems that govern more and more crucial parts of our civilization's infrastructure (aerospace transport systems, telecommunications, exploration probes). [...]
CERN-THESIS-2016-301.- Warsaw, Poland : Warsaw University of Technology Publishing House, 2016 Fulltext: PDF;

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2017-05-24
15:13
Vol. 39 - Cryogenic Fiber Optic Sensors for Superconducting Magnets and Power Transmission Lines in High Energy Physics Applications / Chiuchiolo, Antonella (University of Sannio) ; Cusano, Andrea (dir.) (University of Sannio) ; Bajko, Marta (dir.) (CERN)
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. The magnet technology will be based on Nb3Sn enabling to operate in the 11 - 13 T range. [...]
CERN-THESIS-2015-401.- Warsaw, Poland : Warsaw University of Technology Publishing House, 2015 Fulltext: PDF;

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2017-05-23
23:10
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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