Masters Theses

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2021-09-02
13:30
Tagged Analysis of $B^0\to\pi^-\ell^+\nu_\ell$ at Belle / Jonathan Wolfgang Grumke ; Jochen Dingfelder ; Peter Lewis [BELLE2-MTHESIS-2021-075] Presented on 25 08 2021 MSc
2021
Physikalisches Institut / Bonn
Using the FEI algorithm with simulated data for hadronic tagging in the reconstruction of $B^0\to\pi^-\ell^+\nu_\ell$ results in a signal yield of $626\pm 39$ when applying the same selections as Sibidanov et al., who used the FR algorithm and obtained a signal yield of $463\pm 28$. [...]
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2021-09-02
13:19
Investigation of B → µ ν_µ with Inclusive Tagging at Belle II / Daniel Jacobi ; Prof. Dr. Jochen Dingfelder ; Dr. Peter Lewis ; Svenja Katharina Granderath [BELLE2-MTHESIS-2021-074] Presented on 25 08 2021 MSc
2021
Physikalisches Institut / Bonn
In this thesis the rare $B \to \mu \nu_{\mu}$ decay was investigated using the inclusive tagging approach. [...]
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2021-09-02
07:05
First Conceptual Design and Studies for a Tracking Time Projection Chamber for the Belle II Experiment / Andreas Löschcke Centeno ; Jochen Dingfelder ; Peter Lewis [BELLE2-MTHESIS-2021-073] Presented on 30 08 2021 MSc
2021
Physikalisches Institut / Bonn
This thesis deals with simulating a tracking time projection chamber (TPC) for the \Btwo experiment at the SuperKEKB accelerator and using the simulation for first studies. [...]
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2021-07-20
13:12
Neural Network based Pulse Shape Analysis with the Belle II Electromagnetic Calorimeter / Stella Katharina Wermuth ; Dr. Torben Ferber ; Prof. Dr. Oliver Gerberding [BELLE2-MTHESIS-2021-072] Presented on 22 06 2021 MSc
2021
DESY / Hamburg
The Belle II experiment, located at the SuperKEKB e+e- collider in Japan, uses pulse shape analysis techniques to distinguish electromagnetically and hadronically interacting particles within the CsI(Tl) electromagnetic calorimeter. [...]
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2021-07-19
11:21
Search for lepton flavour violating B meson decays at the Belle experiment / Mateusz Kaleta ; Andrzej Bożek [BELLE2-MTHESIS-2021-071] Presented on 26 01 2021 MSc
2021
- / -
The work of the thesis is concerned about searching for Lepton Flavour Violating B meson decays, B+ →K+τ±μ∓, in the experimental environment of the Belle experiment. [...]
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2021-07-13
16:08
Study of 𝐵 → 𝜋^−ℓ^+𝜈_ℓ Decays Using Fully Reconstructed ϒ(4𝑆) → 𝐵 \bar 𝐵 Events at the Belle II Experiment / Yaroslav Kulii ; Thomas Kuhr [BELLE2-MTHESIS-2021-070] Presented on 15 09 2020 MSc
2020
Ludwig Maximilian University / Munich
We present the results of a study of exclusively reconstructed 𝐵 → 𝜋^−ℓ^+𝜈_ℓ decays, where ℓ is an electron or a muon. [...]
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2021-07-02
12:25
Construction of Angular Observables Sensitive to New Physics in $\bar B\to D^*\tau^-\bar \nu_\tau$ Decays and Measurements of Differential Cross Sections of $\bar B\to D^*\ell^-\bar\nu_\ell$ Decays with Hadronic Tagging at Belle / Kilian Lieret ; Thomas Kuhr ; Martin Jung ; Gerhard Buchalla [BELLE2-MTHESIS-2021-069] Presented on 16 09 2018 MSc
2018
Ludwig Maximilian University of Munich / Munich
Recent measurements of $\bar B\to D^{(*)}\ell^-\bar\nu_\ell$ cross sections at Belle, BaBar, and LHCb challenge lepton universality and thus the Standard Model at a combined confidence level close to four standard deviations. [...]
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2021-07-02
03:02
Sensitivity Study of $B^{+}\rightarrow \mu^{+}\nu$ in the Belle II Experiment / Yen-Ting Chin ; Pao-Ti Chang [BELLE2-MTHESIS-2021-068] Presented on 25 01 2021 MSc
2021
National Taiwan University / Taipei, Taiwan
In this study, we intend to estimate the statistical significance of $B^{+}\rightarrow \mu^{+}\nu$ when various amounts of Belle II data are available in the future, assuming that the Standard Model estimation of the branching fraction of $B^{+}\rightarrow \mu^{+}\nu$ is correct. [...]
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2021-07-02
01:21
A Study of Dark Matter at Electron-Positron Colliders using High Performance Computing / Kihong Park ; Kihyeon Cho [BELLE2-MTHESIS-2021-067] Presented on 02 06 2021 MSc
2021
UST/KISTI / Daejeon, Korea
Even if the Standard Model (SM) describing particles that constitutes the universe and its interactions is well established, the SM cannot explain dark matter. [...]
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2021-07-01
10:50
FPGA-based Self-repairing Digital Circuits Design for the Belle II Experiment / Sara Massarotti ; Raffaele Giordano [BELLE2-MTHESIS-2021-066] Presented on 17 02 2021 MSc
2021
University of Naples "Federico II" / Naples (Italy)
Belle II is a High-Energy Physics (HEP) experiment designed for measurements in the heavy flavor sector of the Standard Model (SM) and for New Physics (NP) searches. [...]
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