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LHCb Theses
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2024-04-23
10:39
Study of the $C\!P$ violating phase $\gamma$ at the LHCb experiment
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Zhang, Shunan
Charge conjugation-Parity ($C\!P$) violation is one of the prerequisites of the matter-antimatter asymmetry in the universe
[...]
CERN-THESIS-2023-387
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2024-04-19
01:07
zfit: scalable model fitting in Python using TensorFlow
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Eschle, Jonas
Fitting a model to data is an essential part in most High Energy Physics analyses
[...]
CERN-THESIS-2019-447
- 72 p.
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2024-04-19
01:00
Studies of $B^+ \rightarrow K^+ \pi^+ \pi^- e^+ e^-$ decays at LHCb
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Eschle, Jonas
Studies of the rare decay $B^+ \rightarrow K^+ \pi^+ \pi^- e^+ e^-$ are performed using proton-proton collision data, corresponding to an integrated luminosity of about 1 fb$^{−1}$ , collected by the LHCb experiment at the centre-of-mass energy of 7 TeV
[...]
CERN-THESIS-2017-500
- 38 p.
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2024-04-19
00:48
Studies on $R_K$ with Large Dilepton Invariant-Mass, $\\$ Scalable Pythonic Fitting,$\\$ and Online Event Interpretation with GNNs at LHCb
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Eschle, Jonas
The Standard Model of particle physics is the established theory describing nature's phenomena involving the most fundamental particles
[...]
CERN-THESIS-2024-036
- 269 p.
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2024-04-12
16:09
First model independent measurement of the CKM angle $\gamma$ using $B^{\pm} \rightarrow DK^{\pm}$ and $B^{\pm} \rightarrow D\pi^{\pm}$, $D \rightarrow 2\pi^{+}2\pi^{-}$ decays at LHCb
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Westhenry, Benedict Donald C
The measurement presented in this thesis is that of the Cabibbo-Kobayashi-Maskawa (CKM) angle $\gamma$ using $B^{\pm} \rightarrow D(\rightarrow 2\pi^{+}2\pi^{-})K^{\pm}$ and $B^{\pm} \rightarrow D(\rightarrow 2\pi^{+}2\pi^{-})\pi^{\pm}$ signal decays, where $D$ represents the superposition of $D^{0}
[...]
CERN-THESIS-2023-381
- 146 p.
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2024-04-11
15:19
$b \to u$
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Butter, Jordy
Scientists worldwide have dedicated themselves to understanding the fundamental nature of the universe, leading to the development of the Standard Model
[...]
CERN-THESIS-2023-379
- 182 p.
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2024-04-08
16:08
Measurement of the Branching Fraction of the Decay $\boldsymbol{B^{+}\rightarrow K^{+}\mu^{+}\mu^{-}}$ at LHCb and Study on Mighty Tracker for Future LHCb Upgrade
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Denysenko, Vadym
This thesis reports the branching fraction measurement of the rare decay $B^{+}\rightarrow K^{+}\mu^{+}\mu^{-}$ in the di-lepton invariant mass, $q = m(\mu^+ \mu^-)$, region above narrow $\mathrm{c}\overline{\mathrm{c}}$ resonances, $J/\psi$ and $\psi(2S)$
[...]
CERN-THESIS-2024-030
- 145 p.
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2024-03-21
17:32
Boosting the discovery potential of LHCb by developing a new search for diphoton resonances and an alternative muon reconstruction technique using GPUs
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Casais Vidal, Adrian
The main part of this thesis is devoted to describe a search for a diphoton resonance in the $[5,20]~$ GeV mass region with $pp$ collision data taken with the LHCb experiment during 2018 at an energy $\sqrt{s}= 13~ $TeV
[...]
CERN-THESIS-2023-364
- 163 p.
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2024-03-19
14:15
Search for the lepton flavour violating decays $B^{0} \to e^{\pm}\mu^{\mp}$ and $B^0_s \to e^{\pm}\mu^{\mp}~~~~~~$ with LHCb Run 2 data
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Schulte, Sebastian
A large variety of new physics models suggest that the rates for lepton flavour violating $b$-hadron decays may be much higher than predicted in the Standard Model, which leads to a high interest in the search for such decays
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CERN-THESIS-2023-362
- 197 p.
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2024-03-18
11:00
Angular analysis of $\Lambda^0 _b \to \Lambda(1520)\mu^+\mu^-$ decays with the LHCb detector
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Volle, Felicia
New Physics (NP) searches via $b \to s \ell^+\ell^-$ transitions are powerful methods since NP contributions could cause sizeable deviations from the Standard Model (SM) predictions
[...]
CERN-THESIS-2023-359
- 376 p.
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