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LHCb Theses

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2023-11-24
20:22
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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2023-11-23
16:15
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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2023-11-22
08:26
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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2023-11-20
14:27
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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2023-11-19
17:09
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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2023-11-07
09:55
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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2023-11-02
09:30
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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2023-10-27
15:14
Analysis of radiation damage in pixel sensors of the LHCb experiment and development of the HPLV ventilator / Dos Santos Rodrigues, Gabriel
The LHCb experiment, one of four large experiments at the LHC, studies heavy flavour particle physics [...]
CERN-THESIS-2023-219 - 117 p.


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2023-10-26
16:55
/ Lampis, Andrea
To fully exploit the instantaneous luminosity that LHC could provide at interaction point 8, where the LHCb experiment is located, a second experiment upgrade, called upgrade II, is planned to take place during Long Shutdown 4 in 2033 [...]
CERN-THESIS-2023-215 - 170 p.


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2023-10-18
15:17
Development of microlens-enhanced SiPMs for a radiation-hard scintillating fibre tracker at LHCb / Trippl, Carina
The LHCb experiment at CERN’s Large Hadron Collider (LHC) is currently taking data with a newly developed Scintillating Fibre (SciFi) Tracker read out with multichannel silicon pho- tomultipliers (SiPMs) [...]
CERN-THESIS-2023-203 - 160 p.


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