CERN Accelerating science

LHCb Theses

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Developing silicon pixel detectors for LHCb: constructing the VELO Upgrade and designing a MAPS-based tracking detector / Murray, Donal
The Large Hadron Collider beauty (LHCb) experiment is currently undergoing a major upgrade of its detector, including the construction of a new silicon pixel detector, the Vertex Locator (VELO) Upgrade [...]
CERN-THESIS-2021-325 - 224 p.

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A search for the B_0(s) to mu mu (gamma) decays at LHCb / Yeomans, Lauren Emma
Feasibility studies are conducted to test if the B(s) → µµγ branching fraction can be measured using a partial reconstruction technique, using the B(s) → µµ analysis with no optimisation for the radiative counterpart [...]
CERN-THESIS-2021-323 10.17638/03146408 ; - Liverpool : University of Liverpool, 2022-01-14. - 148 p.

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Search for heavy neutrinos and characterisation of silicon sensors for the VELO upgrade / Dall'Occo, Elena
Many theories beyond the Standard Model predict the existence of heavy neutral leptons to explain the smallness of neutrino masses [...]
CERN-THESIS-2020-410 - 238 p.

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Studies of rare $B$-meson decays to muons at the LHCb experiment / Williams, Ifan
In this dissertation, very rare decays of $B$-mesons to purely muonic final states, both dimuon and four-muon, are studied at the LHCb experiment using data recorded during the first and second data-taking periods of the Large Hadron Collider, spanning the years 2011-2012 and 2015-2018, respectively [...]
CERN-THESIS-2022-034 - 318 p.

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Amplitude analysis of the $Lambda_b^0 \to J/\psi p K^-$ decay and first observation of the $Lambda_b^0 \to \eta_c(1S) p K^-$ decay / Wang, Mengzhen
CERN-THESIS-2021-314 -

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Fixed-target physics with the LHCb experiment at CERN / Mariani, Saverio
Owing to its detector geometry covering the forward direction and its excellent track reconstruction and particle identification performance, the LHCb experiment at CERN started in 2015 a pioneering study of beam-gas collisions by injecting noble gases in the LHC accelerator [...]
CERN-THESIS-2021-313 - 295 p.

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Developing a Silicon Pixel Detector for the Next Generation LHCb Experiment / Svihra, Peter
The second long shutdown of the LHC presents an opportunity for the LHCb experiment to upgrade its detector systems and switch to a fully software triggered readout [...]
CERN-THESIS-2021-309 - 236 p.

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Experimental Study of Exotic Hadrons at LHCb / Xu, Zehua
Among more than twenty tetraquark candidates that contain at least one $c\bar{c}$ pair, the electrically charged states, $e.g.$ $Z_c(3900)^+$ and $Z_c(4430)^+$, are smoking-gun evidence of tetraquark states, since their minimum-constituent-quark contents are $c\bar{c}u\bar{d}$ [...]
CERN-THESIS-2021-303 - 283 p.

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Study of the Bose--Einstein correlations in proton-proton and proton-lead collisions at LHCb / Malecki, Bartosz Piotr
This thesis describes a study of the Bose--Einstein correlations for same-sign charged pions originating from proton-proton and proton-lead collisions recorded in the LHCb experiment at $\sqrt{s} = 7 \, \mathrm{TeV}$ centre-of-mass energy and $\sqrt{s_{\mathrm{NN}}} = 5.02 \, \mathrm{TeV}$ centre-of [...]
CERN-THESIS-2021-302 - Cracow : Cracow, INP, 2022-03-01. - 148 p.


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Search for the rare $B^0 \to K^{*0} \tau^+ \tau^-$ decay at the LHCb experiment / Cerasoli, Jacopo
A search for the rare $B^0 \to K^{*0} \tau^+ \tau^-$ decay is performed using $9\text{ fb}^{-1}$ of proton-proton collision data collected at the LHCb experiment at CERN [...]
CERN-THESIS-2022-017 -

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