# CERN Theses

Derniers ajouts:
2016-05-30
12:43
 Measurement of the $t\bar{t}$ differential cross section at large top quark transverse momentum in $\sqrt{s}$=8 TeV $pp$ collisions using the ATLAS detector at the LHC / Massa, Lorenzo The top quark is the heaviest particle in Standard Model [...] CERN-THESIS-2016-043 -

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2016-05-30
12:29
 Measurement of the differential cross section of $t\bar{t}$ pairs in $pp$ collision at $\sqrt{s} = 7$ TeV with the ATLAS detector at the LHC / Romano, Marino The analysis presented on this thesis is focused on the relative top-anti top production cross section $1/\sigma\frac{d\sigma}{dX}$\footnote{The relative, or normalized, differential cross section is affected by lower systematic errors, since many sources of uncertainty do not modify the shape of th [...] CERN-THESIS-2013-413 - 207 p.

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2016-05-26
15:33
 Study of long-term sustained operation of gaseous detectors for the high rate environment in CMS / Merlin, Jeremie Alexandre The muon system of CMS aims to provide an efficient and fast identification of the muons produced in the proton-proton collisions [...] CERN-THESIS-2016-041 - 222 p.

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2016-05-25
13:45
 Measurement of Top-Quark Pair Production Cross Sections and Calibration of the Top-Quark Monte-Carlo Mass using LHC Run I Proton-Proton Collision Data at square $\sqrt{s}= 7 and 8 TeV with the CMS Experiment. / Kieseler, Jan (DESY) ; Lipka, Ekaterina (dir.) (DESY) In this thesis, measurements of the production cross sections for top-quark pairs andthe determination of the top-quark mass are presented. Dileptonic decays of top-quarkpairs (tt) with two opposite-charged lepton (electron and muon) candidates in the ﬁnalstate are considered. [...] CERN-THESIS-?; CMS-TS-2016-007.- 2016 - 166 p. Fulltext: PDF; 2016-05-23 10:43  Measurement of Direct Photons in pp and Pb–Pb Collisions with Conversion Pairs / Wilde, Martin CERN-THESIS-2015-338 - 213 p. Fulltext 2016-05-22 10:53  Search for New Physics Using Jets in Proton-Proton Collisions / Endner, Oliver Chris In this thesis a search for New Physics in events with two jets is presented [...] CERN-THESIS-2015-337 - 162 p. Fulltext 2016-05-20 15:55  Development of the Selection Procedure for a Measurement of the Ratio of Branching Fractions$R_{pK}={\cal B}(\Lambda_b^0 \rightarrow pK\mu^+\mu^-)/{\cal B}(\Lambda_b^0 \rightarrow pKe^+e^-)$as a Test of Lepton Universality / Kirwan, Sean A selection procedure for the non-rare decays$\Lambda_b^0 \to pK^-J/\psi(\to \ell^+\ell^-)$(where$\ell = \mu,e$) is presented, involving PID selection, removal of peaking backgrounds and multivariate analysis [...] CERN-THESIS-2016-040 - 30 p. Fulltext 2016-05-20 14:33  Design of the TORCH detector: A Cherenkov based Time-of-Flight system for particle identification / Van Dijk, Maarten The LHCb detector at the LHC collider has been very successfully operated over the past years, providing new and profound insights into the Standard Model, in particular through study of$b$-hadrons to achieve a better understanding of CP violation [...] CERN-THESIS-2016-039 - 185 p. Fulltext 2016-05-20 06:10  High-energy photoproduction of neutral mesons / Charity, Tim This thesis presents results from the first full period of data-taking of the experiment WA69 at the Omega^'^ectrometer, CERN, Geneva [...] UMI-DX-88-80606. - 1987. - 153 p. UMI - server 2016-05-18 00:58  A Search for Lepton-Flavor-Violating Decays of the 125 GeV Higgs Boson with Hadronically Decaying Tau Leptons in the 20.3 fb$^{-1}$,$\sqrt{s} = 8$TeV Dataset Collected in 2012 by the ATLAS Detector at the Large Hadron Collider / Clarke, Robert Najem This dissertation presents a search for lepton-flavor-violating (LFV) decays of the 125 GeV Higgs boson in final states of$\mu\tau_{\mathrm{had}}$and$e\tau_{\mathrm{had}}\$ in the full dataset collected by the ATLAS detector in 2012 [...] CERN-THESIS-2016-038 - 232 p.

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