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CERN Theses

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2023-12-05
14:16
Tracker Readout Development for the CMS Upgrade and a Search for Light Higgs Bosons from SUSY Decay Cascades / Holmberg, Mei-li
This thesis focuses on two areas of the CMS experiment at the Large Hadron Collider (LHC): the upgrade work for the CMS detector at the HighLuminosity LHC (HL-LHC) and the Run 3 preparations for a Next-to-Minimal Supersymmetric Standard Model (NMSSM) search for light Higgs bosons [...]
CERN-THESIS-2023-277 CMS-TS-2023-035. - 2023. - 179 p.


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2023-12-05
14:16
Measurements on the production of a Z boson in association with a photon in proton-proton collisions and a search for anomalous triple gauge couplings at the CERN Large Hadron Collider / Wadud, Mohammad Abrar
Within the framework of the Standard Model of particle physics, $p$-$p$ collisions produce the final state of a photon and missing momentum from a $Z$ boson solely through quark exchange in the $t$ and $u$ channels, since direct couplings between the neutral electroweak bosons $Z$ and $\gamma$ are n [...]
CERN-THESIS-2023-280 CMS-TS-2023-032. - 2023. - 153 p.


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2023-12-05
14:16
Charming decays of the Higgs, Z, and W bosons: Development and deployment of a new calibration method for charm jet identification / Mondal, Spandan
This thesis presents searches for the Higgs boson, Z boson, and W boson decaying into charm quark(s) performed with proton-proton collision data at $\sqrt{s}$ = 13 TeV collected by the CMS experiment at the LHC, CERN, corresponding to an integrated luminosity of 138 fb$^{-1}$ and recorded between 20 [...]
CERN-THESIS-2023-278 CMS-TS-2023-031. - 2023. - 195 p.


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2023-12-05
14:16
Flavor tagging algorithms for CP violation measurements in CMS / Lusiani, Enrico
This thesis presents the development of four flavor tagging algorithms to be used in CP violation measurements in CMS [...]
CERN-THESIS-2023-279 CMS-TS-2023-029. - 2023. - 260 p.


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2023-12-05
14:16
Search for New Physics Impacting Associated Top Production in Multilepton Final States Using the Framework of Effective Field Theory / Mohrman, Kelci
This thesis presents a search for new physics impacting top quarks within the context of an effective field theory (EFT) [...]
CERN-THESIS-2023-281 CMS-TS-2023-028. - 2023. - 286 p.


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2023-11-29
16:20
Precision measurement of the Higgs boson production cross sections and couplings in the WW decay channel with the CMS experiment at the LHC using the Run II data set / Seidita, Roberto
The discovery of the Higgs boson in 2012 by the ATLAS and CMS collaborations at the CERN LHC accelerator marked the final experimental confirmation of the Standard Model (SM) of particle physics, the theory that encodes our best understanding of fundamental particles and their interactions [...]
CERN-THESIS-2023-263 CMS TS-2023-030. - 160 p.


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2023-11-28
15:55
Studies of B$_{(s)}^{0}$ -> $\mu$$^{+}$$\mu$$^{-}$ with CMS experiment at LHC / Kar, Chandiprasad
CERN-THESIS-2023-267 CMS-TS-2023-026. - 2023. - 256 p.


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2023-11-28
15:55
Search for long-lived particles decaying into displaced dilepton vertices in proton-proton collisions at $\mathbf{\sqrt{s} = 13}$ TeV with the CMS detector / Fernandez Madrazo, Celia
Some of the most popular extensions of the Standard Model of Particle Physics contain long-lived particles, which can be framed in a wide variety of theories,covering different regions of the phase space [...]
CERN-THESIS-2023-266 CMS-TS-2023-025. - 2023. - 235 p.


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2023-11-27
15:45
Search for high mass resonances with multi-lepton channels and study of timing performance of the CMS High Granularity Calorimeter / Buchot Perraguin, Axel Newton
This thesis takes place at a critical moment when all the data collected by the CMS experiment during the LHC Run-2 are available and when the new generation of detectors aiming to probe even further our knowledge of physics are being developed [...]
CERN-THESIS-2023-257 - 298 p.


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2023-11-27
15:27
Differential ratio measurements of $\mathrm{t\bar{t}\gamma}$/$\mathrm{t\bar{t}}$ and a search for exclusive $\mathrm{t\bar{t}}$ with the CMS experiment / Ribeiro Lopes, Beatriz
In this thesis, measurements performed using proton-proton collision data at $\sqrt{s} = 13~$TeV collected by the CMS experiment at the CERN LHC, in the years 2016, 2017, and 2018, are presented [...]
CERN-THESIS-2023-256 CMS-TS-2023-027. - 207 p.


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