Theses

Theses 344 records found  beginprevious121 - 130nextend  jump to record: Search took 0.00 seconds. 
121. Data Handling Processor and Signal Transmission in the Belle II DEPFET Pixel Detector / Leonard Germic ; Norbert Wermes [BELLE2-PTHESIS-2022-009] Presented on 12 07 2018 PhD
2018
University of Bonn / Bonn
The high precision measurements at the B factories have generated a new insight of the Standard Model with respect to CP violation and delivered higher constraints on the Standard Model parameters, i.e. [...]
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122. Development of Pixel Modules for the Belle II Detector / Florian Lütticke ; Norbert Wermes [BELLE2-PTHESIS-2022-008] Presented on 01 02 2018 PhD
2018
University of Bonn / Bonn
The future Belle II experiment at the SuperKEKB accelerator will improve the current understanding of flavor physics by increasing the recorded data set fiftyfold; allowing high precision measurements of CKM parameters and measurements of rare decays. [...]
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123. Investigation of Belle II Experiment Sensitivity to Magnetic Monopoles / Ihor Prudiiev ; Volodymyr Aushev [BELLE2-MTHESIS-2022-019] Presented on 23 05 2022 MSc
2022
Taras Shevchenko National University of Kyiv / Kyiv
The possibility of searching for magnetic monopoles with a magnetic charge value of 68.5𝑒 in the mass range 50 – 4600 MeV in the Belle II collider experiment was investigated [...]
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124. Search for e+e− → µ+µ− Z'(Z' → Invisible) in the first data of the Belle II experiment / Luigi Corona ; Francesco Forti [BELLE2-MTHESIS-2022-018] Presented on 26 10 2018 MSc
2018
University of Pisa / Pisa
The purpose of this thesis is to investigate the production of a light dark gauge boson Z' in association with a muon pair in electron-positron annihilation at the center of mass energy of 10.58 GeV. [...]
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125. Improved Selective Background Monte Carlo Simulation at Belle II with Graph Attention Networks and Weighted Events / Boyang Yu ; Thomas Kuhr ; Nikolai Hartmann [BELLE2-MTHESIS-2022-017] Presented on 14 09 2021 MSc
2021
LMU Munich / Munich, Germany
When measuring rare processes such as B → K(∗)νν¯ or B → lνγ, a huge luminosity is required, which means a large number of simulations are necessary to determine signal efficiencies and background contributions. [...]
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126. Feasibility study of dark-photon searches in the single photon plus missing events in e+e- collisions at Belle II. / Ayumi Yabuuchi ; Hisaki Hayashii [BELLE2-MTHESIS-2022-016] Presented on 28 02 2020 MSc
2020
Nara Women's University / Nara, japan
We carried out the feasibility study of the dark-photon searches for events where only a single photon is detected, using signal and background Monte-Carlo simulation. [...]
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127. Measurement of the pion transition form factor in the single-tag one-pion production process e+e--> e (e) pi^0. / Mirey Aoyama ; Hisaki Hayashii [BELLE2-MTHESIS-2022-015] Presented on 20 02 2021 MSc
2021
Nara Women's University / Nara, Japan
This thesis reports the results of the feasibility study of the one-pion production in the single-tag two-photon processes in the e+e- collisions at Belle II [...]
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128. Search for the visible ττ decay of a Z′ dark boson in µµττ final state with Belle II / Luigi Corona ; Francesco Forti ; Katsuro Nakamura [BELLE2-PTHESIS-2022-007] Presented on 18 07 2022 PhD
2022
University of Pisa / Pisa
In this thesis we investigate the possibility of detecting these new particles in the mass range 3.6-10 GeV/c2 through their decays in a τ+τ− pair in e+e− → µ+µ−τ+τ− events. [...]
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129. Full Event Interpretation using Graph Neural Networks / Lea Reuter ; Torben Ferber ; Günter Quast ; James Kahn ; et al [BELLE2-MTHESIS-2022-014] Presented on 17 02 2022 MSc
2022
Institute of Experimental Particle Physics / Karlsruhe
The expected large dataset of the Belle~II experiment will enable precise measurements of rare decays to probe the Standard Model and searches for new physics. [...]
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130. Sensitivity Study in the Search for $B^{\pm}\to K^{\pm}a$ (displaced $a\to\gamma\gamma$) Decays at Belle II / Alexander Heidelbach ; Prof. Dr. Torben Ferber ; Prof. Dr. Günter Quast [BELLE2-MTHESIS-2022-013] Presented on 28 04 2022 MSc
2022
Institute of Experimental Particle Physics / Karlsruhe
In a set of simple extensions of the Standard Model, Axion Like Particles (ALPs) arise as pseudo Nambu-Goldstone bosons of theories with a spontaneously broken Peccei-Quinn symmetry that is anomalous under the Standard Model gauge symmetry. [...]
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