Theses

Theses 208 records found  previous11 - 20nextend  jump to record: Search took 0.00 seconds. 
11. Development of a Semi-Inclusive Tagging Algorithm and Implementation of a Continuum Suppression in the Full Event Interpretation for the Belle II Experiment / Gianna Mönig [BELLE2-MTHESIS-2022-004] Presented on 31 08 2021 MSc
2021
Physikalisches Institut Bonn / Bonn
In this thesis a novel hybrid approach to tag-side reconstruction is presented, where the tag-side is only partially reconstructed in order to improve the purity compared to the inclusive tagging, while retaining a high efficiency. [...]
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12. SEARCH FOR B → K (∗) ν ν̄ DECAYS IN BELLE II / Lucas MARTEL ; Isabelle RIPP-BAUDOT ; Giulio DUJANY [BELLE2-MTHESIS-2022-003] Presented on 18 06 2020 MSc
2020
Universite de Strasbourg / Strasbourg, France
The B → K (∗) ν ν̄ decay channel, never discovered to this day, is actively sought for in the Belle II experiment. [...]
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13. Trouver le méson B d’origine à l’aide d’un réseau de neurones à graphes à Belle II / Alizée Brouillard ; Giulio Dujany [BELLE2-MTHESIS-2022-002] Presented on 08 09 2021 MSc
2021
Université de Strasbourg / Strasbourg
To find new physics beyond Standard Model, the Belle II experiment performs precision measurements to bring to light deviations between theory and experimental data. [...]
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14. Characterisation of interstrip parameters on silicon sensors for the Belle II vertex detector / Paul DOLEJSCHI ; Manfred KRAMMER [BELLE2-MTHESIS-2022-001] Presented on 01 08 2012 Diploma
2012
HEPHY / Vienna
The BELLE II experiment at the SuperKEKB-Factory is designed to investigate CP violation in the quark sector. [...]
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15. Employing Deep Learning to Find Slow Pions in the Pixel Detector in the Belle II Experiment / Johannes Bilk ; Jens Sören Lange [BELLE2-MTHESIS-2021-081] Presented on 25 11 2021 MSc
2021
II. Institute of Physics / Giessen
Slow pions (pT<230 MeV/c) are detected and classified based exclisively upon their cluster shape in the PXD, using a neural network (NN) performing image processing [...]
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16. Firmware Implementations for the Upgrade of the Data Acquisition System of the Belle II Pixel Detector / Matthäus Krein ; Simon Reiter ; Thomas Geßler ; Jens Sören Lange [BELLE2-MTHESIS-2021-080] Presented on 20 12 2021 MSc
2021
II. Institute of Physics / Giessen
Parts of the ONSEN system firmware ("merger carrier" firmware), integrated in the present PXD readout, have been upgraded to a new FPGA platform, namely Kintex UltraScale 060 [...]
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17. MC study to obtain reconstruction efficiencies to measure branching fraction of D+ -> K+ pi0 mode / Haeyun Hwang ; Doris Kim [BELLE2-UTHESIS-2021-001] Presented on 13 12 2021 BSc
2021
Soongsil University / Seoul
Measuring the branching fraction of the D meson rare decay is important for validating the theoretical calculations of the standard model. [...]
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18. An electromagnetic calorimeter cluster classifier as a beam background suppressant in B^0 → D^{∗+} l^− ν_l decays at the Belle II experiment. / Kyle Amirie ; Steven Robertson [BELLE2-MTHESIS-2021-079] Presented on 01 11 2020 MSc
2020
McGill University / Montreal
The presence of beam background-related photons in the extra energy distributions of events reconstructed using Belle II data can make it difficult to accurately identify en- ergy missing from the detector that can be attributable to neutrinos or other hypothe- sized weakly interacting particles. [...]
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19. The Belle II vertex detector alignment studies and prompt $\sin{2\phi_1} $ analysis / Jakub Kandra ; prof. RNDr. Zdenek Dolezal, Dr. [BELLE2-PTHESIS-2021-019] Presented on 26 11 2021 PhD
2021
Institute of Particle and Nuclear Physics / Prague
This thesis is focused on the alignment studies of the vertex detector during first years of the Belle II detector operation and the first prompt $\sin{2\phi_1}$ analysis using the first relevant data collected by the detector. [...]
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20. First application of CsI(Tl) pulse shape discrimination at an $e^+ e^-$ collider to improve particle identification at the Belle II experiment / Savino Longo ; John Michael Roney [BELLE2-PTHESIS-2021-018] Presented on 07 10 2019 PhD
2019
University of Victoria / Victoria
This dissertation investigates CsI(Tl) pulse shape discrimination (PSD) as a novel experimental technique to improve challenging areas of particle identification at high energy $e^+ e^-$ colliders using CsI(Tl) calorimeters. [...]
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