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CMS Theses

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2014-10-10
08:52
Search for electroweak production of supersymmetric gauginos with photons at CMS / Schulz, Johannes (Aachen, Tech. Hochsch.) ; Feld, Lutz Werner (dir.) (Aachen, Tech. Hochsch.)
In this thesis a search for electroweak production of gauginos in the theoretical context of gaugemediated supersymmetry is presented. Under the assumption of a bino-like mixture of the gaugeeigenstates of the lightest neutralino, being the next-to-lightest supersymmetric particle in thisanalysis, decays of the lightest neutralino into a photon and a gravitino are highly preferred. [...]
CMS-TS-2014-031; CERN-THESIS-2014-141.- 2014 - 115 p. Fulltext: TS2014_031 - PDF; TS2014_031_2 - PDF;

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2014-10-10
08:52
Studies of simplified models and projection to $\sqrt{s}$=13 TeV for the CMS SUSY dilepton edge search / Schomakers, Christian (Aachen, Tech. Hochsch.) ; Feld, Lutz Werner (dir.) (Aachen, Tech. Hochsch.)
CERN-THESIS-2014-142; CMS-TS-2014-030.- 2014 - 92 p. Fulltext: TS2014_030 - PDF; TS2014_030_2 - PDF;

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2014-10-10
08:52
Analysis of the dependency of lepton selection on pileup with respect to the search for supersymmetry in dilepton events at CMS / Teroerde, Marius (Aachen, Tech. Hochsch.) ; Feld, Lutz Werner (dir.) (Aachen, Tech. Hochsch.)
In this bachelor thesis, the effects of pileup on the lepton selection are studied on simulated√datasets for different pileup scenarios at s = 13 TeV. For this matter, different quantitiesused in the lepton selection and in analyses are tested with regard to their dependencieson pileup. [...]
CMS-TS-2014-029; CERN-THESIS-2014-143.- 2014 - 33 p. Fulltext: TS2014_029 - PDF; TS2014_029_2 - PDF;

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2014-10-08
12:19
Search for Supersymmetry in final states with one Photon and Jets at the CMS Detector / Kiesel, Knut
Studies for a search for beyond the standard model physics in events with at least one photon, missing transverse energy and jets are presented [...]
CERN-THESIS-2014-139 - 84 p.

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2014-10-03
11:34
Search for supersymmetry in events with a single lepton, jets and missing transverse energy with the CMS detector at LHC / Gouskos, Loukas (UC, Santa Barbara) ; Sphicas, Paraskevas (dir.) (CERN)
This thesis presents searches for supersymmetry in the single-lepton final state, in proton-protoncollisions at center of mass energies of 7 and 8 TeV, recorded by the CMS experiment at the LHC(CERN). The searches are motivated by supersymmetric models involving strong-production processes leading to large cascades of supersymetric particles. [...]
CERN-THESIS-2014-138; CMS-TS-2014-028.- 2014 - 195 p. Fulltext: TS2014_028_2 - PDF; TS2014_028 - PDF;

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2014-10-01
09:53
Optimizing the photon selection of the CMS Single-Photon search for Supersymmetry using multivariate analyses / Lange, Johannes (Aachen, Tech. Hochsch.) ; Feld, Lutz Werner (dir.) (Aachen, Tech. Hochsch.)
The purpose of this thesis is to improve the photon selection of the CMS SinglePhoton search for Supersymmetry by using multivariate analyses.The Single-Photon search aims to find Supersymmetry (SUSY) in data taken by theCompact Muon Solenoid (CMS) detector at the Large Hadron Collider located atthe research center CERN. SUSY is an extension of the standard model of particlephysics. [...]
CERN-THESIS-2014-134; CMS-TS-2014-027.- 2014 - 39 p. Fulltext: TS2014_027 - PDF; TS2014_027_2 - PDF;

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2014-09-11
18:48
Search For The Higgs Boson Decaying Into $\tau$-Leptons In The Di-Electron Channel / Salfeld-Nebgen, Jakob
The first dedicated search for Higgs bosons decaying into tau pairs with two electrons and 4 neutrinos in the final state is presented [...]
CERN-THESIS-2014-111 - 186 p.

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2014-09-09
11:20
Differential Cross Sections for Top-Quark-Pair Production in the e/$\mu$+Jets Final State at $\sqrt{s} = 8$ TeV in CMS / Goerner, Martin (Hamburg U.) ; Schleper, Peter (dir.) (Hamburg U.)
The large number of top quarks produced in proton-proton (pp) collisions at the LargeHadron Collider facilitates precision measurements of top-quark properties that are crucialfor testing the consistency of the Standard Model (SM) of particle physics. In particular,differential measurements of the top-quark pair (tt) production cross section are essentialfor comparison with state-of-the-art predictions of Quantum Chromodynamics (QCD)within the SM and for searches for new physics phenomena beyond it. [...]
CERN-THESIS-2014-110; CMS-TS-2014-026.- 2014 - 351 p. Fulltext: TS2014_026 - PDF; TS2014_026_2 - PDF;

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2014-09-09
11:20
Measurement of Top-Quark Mass and Inclusive Top-Quark-Pair Production Cross Section in pp Collisions at $\sqrt{s} = 7/8$ TeV with CMS / Schlieckau, Eike Steffen (Hamburg U.) ; Schleper, Peter (dir.) (Hamburg U.)
One of the most intriguing particles in the Standard Model is the top quark, theheaviest fundamental particle known to date. In this thesis, the mass of the top quarkand the production cross section for top-quark pairs are measured from events with atop-quark pair decaying only into hadrons. [...]
CMS-TS-2014-025; CERN-THESIS-2014-109.- 2014 - 109 p. Fulltext: TS2014_025 - PDF; TS2014_025_2 - PDF;

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2014-09-09
11:20
Search for new heavy quarks with the CMS detector at the Large Hadron Collider / Van Onsem, Gerrit Patrick (Vrije U., Brussels) ; Jorgen D (dir.)
CERN-THESIS-2014-108; CMS-TS-2014-024.- 2014 - 220 p. Fulltext: TS2014_024_2 - PDF; TS2014_024 - PDF;

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