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LHCb Theses

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Searching for Charged Lepton Flavour Violation at LHCb and Long-Lived Particles with CODEX-b / Swallow, Paul Nathaniel
The CODEX-b detector is an RPC-based experiment proposed to search for long-lived particles that may be produced in $pp$ collisions at the LHC [...]
CERN-THESIS-2023-275 - 277 p.

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Upgrade of the LHCb simulation framework with advanced particle event generators / Pozzi, Ruben
The LHCb experiment is one of the main detectors in function at the Large Hadron Collider (LHC) at CERN [...]
CERN-THESIS-2023-272 urn:nbn:se:kth:diva-339751 ; ; diva2:1812797. -

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"Search for rare four-body charm decays with electrons in the final state and long track reconstruction for the LHCb trigger" / Scarabotto, Alessandro
The rare four-body charm decays $D^0 \rightarrow \pi^+ \pi^- e^+ e^-$ and $D^0 \rightarrow K^+ K^- e^+ e^-$ receive contributions from flavour-changing neutral current $c \rightarrow u \ell^+ \ell^-$ transitions [...]
CERN-THESIS-2023-271 - 195 p.

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Angular Analysis of $B^{0}\rightarrow K^{*0}e^{+}e^{-}$ Decays at LHCb / Wang, Zhenzi
The subject of this thesis is the binned angular analysis of $B^{0}\rightarrow K^{*0}e^{+}e^{-}$ decays in the dielectron invariant mass squared ($q^{2}$) regions of $1.1<q^2<6.0\,\mathrm{GeV^{2}/c^{4}}$ and $1.1<q^2<7.0\,\mathrm{GeV^{2}/c^{4}}$ (`central $q^{2}$'), using data collected [...]
CERN-THESIS-2023-254 - 204 p.

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A measurement of charm mixing using $D^{0} \to K^{\pm} \pi^{\mp} \pi^{\pm} \pi^{\mp}$ decays at LHCb and the performance of a TORCH prototype / Smallwood, Jennifer
A measurement of the charm-mixing parameters is made using promptly produced $D^{0} \to K^{\pm} \pi^{\mp} \pi^{\pm} \pi^{\mp}$ decays, exploiting proton-proton collision data collected by LHCb during 2015-18 and corresponding to an integrated luminosity of 5.9 fb$^{-1}$ [...]
CERN-THESIS-2023-252 - 243 p.

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Triggering new discoveries: development of advanced HLT1 algorithms for detection of long-lived particles at LHCb / Jashal, Brij Kishor
The work presented in this thesis constitutes a significant contribution to the first high level trigger (HLT1) of the LHCb experiment, based on the Allen project [...]
CERN-THESIS-2023-249 - 269 p.

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Calorimeter Reconstruction Innovations for the LHCb Experiment / Valls Canudas, Nuria
This thesis focuses on software contributions to the LHCb experiment at CERN, specifically for the Calorimeter system in LHCb Upgrade I context [...]
CERN-THESIS-2023-246 - 124 p.

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Fast and radiation hard silicon detectors for the LHC-b Upgrade II / Haimberger, Jakob
High radiation tolerance will be a key prerequisite for the vertex detectors in future hadroncollider experiments such as the LHCb Upgrade II [...]
CERN-THESIS-2023-244 - 223 p.

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Search for the lepton flavour violating decay $\tau^+\to\mu^+\mu^-\mu^+$ with the LHCb experiment / Frau, Giulia
This thesis presents a search for the lepton flavour violating decay $\tau^+\to\mu^+\mu^-\mu^+$ using data collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4~fb$^{-1}$ [...]
CERN-THESIS-2023-233 - 209 p.

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Test beam studies of SpaCal prototype calorimeter module with tungsten absorber / Bordelius, Aleksandar
The electromagnetic calorimeter, ECAL, is a sub-detector of the general-purpose flavor physics experiment, LHCb, operating at the LHC accelerator at the European Organization for Nuclear Research - CERN [...]
CERN-THESIS-2023-227 - 76 p.

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