CERN Accelerating science

LHCb Theses

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Precision measurement of time-dependent charm observables at high-luminosity LHCb / Terzuoli, Francesco
This thesis is focused on developing a new analysis methodology for allowing high-precision measurement of the $y_{CP}$ time-dependent charm observable at LHCb during the upcoming data-taking runs, from Run 3 up to the HL-LHCb era, using $D^0$ two-body decays [...]
CERN-THESIS-2022-209 - 176 p.

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Model-independent measurement of charm mixing parameters in $D^0 \rightarrow K_S^0 \pi^+ \pi^-$ decays / Ek-In, Surapat
This thesis presents a measurement of charm mixing and CP-violation parameters using $D^0 \rightarrow K_S^0 \pi^+ \pi^-$ decays [...]
CERN-THESIS-2022-177 - 183 p.

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Developing a Hybrid Machine Learning Model for VELO Upgrade Track Reconstruction / Marshall, Phillip John
High energy physics experiments have been processing large quantities of data for decades [...]
CERN-THESIS-2022-163 - 127 p.

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Doubly charmed baryon searches at the LHCb experiment / Seman Bobulska, Dana
The main analysis presented in this thesis is a search for the doubly charmed baryon $\it{\Xi}_{cc}^{+}$ in the $\it{\Xi}_{c}^{+}\pi^{-}\pi^{+}$ final state, where the $\it{\Xi}_{c}^{+}$ baryon is reconstructed in the $p K^{-} \pi^{+}$ final state [...]
CERN-THESIS-2022-162 - 279 p.

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Hydrogen Embrittlement of TiZrV Non-Evaporable Getter Coating / Parragh, David Mate
The study presented in this thesis work was performed to gain better understanding on the hydrogen saturation behavior of the TiZrV NEG coating, as well as on the effects of hydrogen sorption on the functionality of the coating [...]
CERN-THESIS-2022-154 CERN-PBC-Notes-2022-007. - 2022. - 125 p.

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Measurements of the local and non-local contributions in $B^{\pm}\rightarrow K^{\pm}\mu^{\pm}\mu^{\mp}$ decays using LHCb data / Madhan Mohan, Lakshan Ram
In the study of the decay of B mesons, the observed deviations from standard model predictions could potentially be explained by underestimated non-local hadronic intermediate states [...]
CERN-THESIS-2022-140 - 190 p.

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Studies of the opto-electronic chain for the LHCb RICH upgrade / Slazyk, Igor
The present thesis describes in detail the quality assurance of the photodetectors and related electronics (the so-called Elementary Cells) for the RICH (Ring-Imaging Cherenkov) detectors upgrade of the LHCb experiment, performed on-site at the University of Ferrara [...]
CERN-THESIS-2021-350 - 154 p.

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The New Event Builder of the LHCb Experiment: Network Optimisations for the Online Cluster / Perro, Alberto
The LHCb experiment at CERN LHC collider investigates the c- and b- quarks flavour sector of the standard model of particle physics [...]
CERN-THESIS-2022-137 - 96 p.

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Test of Lepton Flavour Universality using the $B_s^0\to D_s^- \tau^+ \nu_\tau$ with 3 prongs $\tau^+$ decays and validation of the new opto-electronics for the RICH Upgrade at the LHCb experiment / Giugliano, Carmen
The Standard Model (SM) of particle physics assumes that the couplings between leptons and the electroweak gauge bosons are independent of the lepton flavour up to a correction due to the mass [...]
CERN-THESIS-2022-130 - 165 p.

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Tests of lepton universality in $B^{0} \to K_{S}^{0} l^{+} l^{-}$ and $B^{+} \to K^{*+} l^{+} l^{-}$ decays at the LHCb experiment / Smeaton, John
The decays $B^{0} \to K_{S}^{0} l^{+} l^{-}$ and $B^{+} \to K^{*+} l^{+} l^{-}$ - where $l^{+} l^{-}$ represents an electron-positron or muon-antimuon pair - are examples of $b \to s l^{+} l^{-}$ processes [...]
CERN-THESIS-2022-128 - 304 p.

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