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Добірка наукової літератури з теми "Trajectographe en silicium"
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Дисертації з теми "Trajectographe en silicium"
Plumeri, Stéphane. "Caractérisation des modules de détection silicium double-face à micropistes pour le trajectographe interne de l'expérience ALICE." Phd thesis, Université Louis Pasteur - Strasbourg I, 2006. http://tel.archives-ouvertes.fr/tel-00391688.
Повний текст джерелаPlumeri, Stéphane Lutz Jean-Robert. "Caractérisation des modules de détection silicium double-face à micropistes pour le trajectographe interne de l'expérience ALICE /." Strasbourg : Université Louis Pasteur, 2007. http://eprints-scd-ulp.u-strasbg.fr:8080/736/01/plumeri2006.pdf.
Повний текст джерелаChabert, Éric. "Intégration d’un bouchon du trajectographe au silicium de l’expérience CMS au LHC et étude du potentiel de découverte de résonances se désintégrant en paires de quarks top." Lyon 1, 2008. http://tel.archives-ouvertes.fr/docs/00/36/39/04/PDF/Chabert-thesis-final.pdf.
Повний текст джерелаThe first part of this thesis is dedicated to the integration of one silicon tracker end cap of the CMS experiment. The procedures implemented and the tests that led to the qualification of the detection system are presented in this document. The second part is dedicated to the search for new physics in the top quark sector. One of the most promising channel is to look for a resonance in the invariant mass distribution of top quark pairs. A full simulation analysis in the lepton + jets channel shows that at the TeV scale, processes from a few hundred fb to one pb could be observed in the early years of data taking
Chabert, Éric Perries Stéphane Contardo Didier. "Intégration d'un bouchon du trajectographe au silicium de l'expérience CMS au LHC et étude du potentiel de découverte de résonances se désintégrant en paires de quarks top." [s.l.] : [s.n.], 2008. http://tel.archives-ouvertes.fr/docs/00/36/39/04/PDF/Chabert-thesis-final.pdf.
Повний текст джерелаLiu, Jian. "Etude d'un détecteur pixel monolithique pour le trajectographe d'ATLAS auprès du LHC de haute luminosité." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4015/document.
Повний текст джерелаA major upgrade to the Large Hadron Collider (LHC), scheduled for 2024 will be brought to the machine so as to extend its discovery potential. This PhD is part of the ATLAS program and aims at studying a new monolithic technology in the framework of the design of an upgraded ATLAS inner tracker. This new type of sensor is based on a HV/HR CMOS technology, which would potentially offer lower material budget, reduced pixel pitch and lower cost with respect to the traditional hybrid pixel detector concept.Various prototypes have been developed using different HV/HR CMOS technologies from several industrial partners, within the ATLAS HV/HR collaboration, for instance Global Foundry (GF) BCDlite 130 nm and LFoundry (LF) 150 nm. In order to understand the electric behavior and the detection capabilities of these technologies, 3D and 2D Technology Computer Aided Design (TCAD) simulations have been performed to extract the depletion zone profile, the breakdown voltage, the leakage current, the capacitance as well as the charge collection of the prototypes. Test setup developments and characterizations of the HV/HR CMOS prototypes were also part of this thesis. The data acquisition programs, in particular dedicated to the proton test beams, X-ray sources and threshold tuning, have been implemented into various test setups. Several HV/HR CMOS prototypes developed in three HV/HR technologies, AMS 0.18 µm HV, GF BCDlite 130 nm and LF 150 nm, have been characterized
Chabert, Eric. "Intégration d'un bouchon du trajectographe au silicium de l'expérience CMS au LHC et étude du potentiel de découverte de résonances se désintégrant en paires de quarks top." Phd thesis, Université Claude Bernard - Lyon I, 2008. http://tel.archives-ouvertes.fr/tel-00363904.
Повний текст джерелаLa deuxième partie est dédiée à la recherche de nouvelle physique dans le secteur du quark top. Une des voies les plus prometteuses consiste à rechercher une résonance dans la distribution en masse invariante des paires de quarks top. Une analyse réalisée en simulation complète dans le canal lepton+jets montre qu'à l'échelle du TeV, des processus de quelques centaines de fb à 1 pb pourraient être observés lors des premières années de prises de données.
Hallewell, G. D. "Aspects de l'utilisation de fluides fluorocarbures saturées dans la physique des hautes énergies." Habilitation à diriger des recherches, Université de la Méditerranée - Aix-Marseille II, 2011. http://tel.archives-ouvertes.fr/tel-00592091.
Повний текст джерелаMassacrier, Laure. "La physique des (di)muons dans ALICE au LHC : analyse en collisions pp (√s = 7 TeV) et Pb-Pb (√sNN = 2.76 TeV) des résonances de basses masses (ρ, ω, ф) et étude d’un trajectographe en pixels de Silicium dans l’ouverture du spectromètre". Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10203/document.
Повний текст джерелаALICE experiment at LHC studies the Quark Gluon Plasma (QGP), a particular state of matter where quarks and gluons are deconfined. A probe to explore this state is the study of several resonances (ρ, ω, ф, J/ψ and Ƴ) through their dimuon decay channel, with a muon spectrometer covering pseudo-rapidity -4 < η < -2.5. In the first part of this thesis, the focus is on light vector mesons (ρ, ω and ф) and their analysis in the 2010 data, in pp collisions at √s = 7 TeV and Pb-Pb collisions at √sNN = 2.76 TeV. Light vector mesons are powerful tools to probe the QGP due to their short lifetime and their dimuon decay channel. Indeed, leptons have negligible final state interactions. Production rates and spectral functions of those mesons are modified by the hot hadronic and QGP medium. In pp collisions, pT distributions, production cross sections and pT-differential cross sections of the different mesons have been extracted. The Pb-Pb analysis and its prospects are also presented. The second part of the thesis concerns ALICE upgrades plans of year 2017. A feasibility study for a Muon Forward Tracker (MFT) in Silicon pixels located upstream of the hadronic absorber, in the spectrometer acceptance, was performed. Performances and improvements brought by the MFT on several physics cases were in simulations
Massacrier, Laure. "La physique des (di)muons dans ALICE au LHC : analyse en collisions pp (√s = 7 TeV) et Pb-Pb (√sNN = 2.76 TeV) des résonances de basses masses (ρ, ω, ф) et étude d'un trajectographe en pixels de Silicium dans l'ouverture du spectromètre". Phd thesis, Université Claude Bernard - Lyon I, 2011. http://tel.archives-ouvertes.fr/tel-00800827.
Повний текст джерелаJansova, Markéta. "Search for the supersymmetric partner of the top quark and measurements of cluster properties in the silicon strip tracker of the CMS experiment at Run 2." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAE018/document.
Повний текст джерелаThis thesis presents three different studies based on the CMS Run 2 data. The first two are measurements of the cluster properties in the CMS silicon strip tracker related respectively to the highly ionizing particles (HIP) and the charge sharing among neighboring strips (also known as cross talk). The last topic discussed in this document is the search for the supersymmetric partner of the top quark, called the stop. An increase in the hit inefficiency of the CMS silicon strip tracker was observed during the years 2015 and 2016. The highly ionizing particles were identified as a possible cause of these inefficiencies. This thesis brings qualitative and quantitative results on the HIP effect and its probability. The HIP was found not to be the largest source of inefficiency at that time and once the source was identified and fixed, the new data revealed that after this fix the HIP now represents the major source of the hit inefficiency. The second study presented in this thesis focuses on the conditions plugged in CMS tracker simulation in order to provide realistic results. These conditions change with the tracker operating conditions and also evolve with tracker ageing resulting from the radiation damage. We identified that the outdated cross talk parameters largely impact the cluster width and seed charge. In this thesis the parameters were remeasured and it was confirmed that the new parameters largely improve the agreement of clusters between data and simulation. The last part describes deeply the stop analysis using data recorded in 2016 (corresponding to ∫L =35.9 fb−1) with single lepton in the final state. No excess was observed in the full 2016 data (∫L = 35.9 fb−1) with respect to the standard model background predictions and therefore exclusion limits in terms of simplified model spectra were derived