2021-06-10
12:12 |
Study of the τ lepton decays at the Belle II experiment
/ Zuzana Gruberova ; Zdenek Dolezal ; Petar Rados ; Ami Rostomyan
[BELLE2-MTHESIS-2021-007]
Presented on 22 06 2021 MSc
2021
Charles University
/ Prague
This master thesis describes the measurement of the π0 reconstruction efficiency correction using τ-pair events from the Belle II experiment. [...]
Additional material to the thesis BELLE2-MTHESIS-2021-007:  PDF; Fulltext: PDF;
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2021-05-20
13:17 |
Track-finding efficiency at Belle II
/ Reshma Menon R ; Dr. Seema Bahinipati
[BELLE2-MTHESIS-2021-006]
Presented on 15 05 2021 MSc
2021
INDIAN INSTITUTE OF TECHNOLOGY BHUBANESWAR
/ ODISHA,INDIA
Track finding efficiency is a vital input to various sources of systematic uncertainties in analyses involving charged particles.Method to calculate tracking efficiency for hadrons is different than that for muons due their decays and interactions with the material of the detector.Therefore, here we describe a method of estimating the relative tracking efficiency of slow pions in data compared to simulation by focusing on B0→ D∗− π+ decay where the D∗− further decays to D̄0 π− .Owing to its limited phase space,the pion from D∗ decay is traditionally referred as slow-pion due to a small mass difference between the D∗ and D̄0. [...]
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2021-05-01
18:09 |
Shower shape conversion between electrons and photons in Belle II using Cycle Generative Adversarial Network
/ Cedric Ly ; Dr. Torben Ferber
[BELLE2-MTHESIS-2021-005]
Presented on 18 03 2021 MSc
2021
DESY
/ Hamburg
Simulation is essential to high-energy physics. [...]
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2021-03-31
10:08 |
SM Compatibility of B to K*)pi Measurements and Ongoing Analysis on B+ to K*(892)+ pi0 in Belle II
/ Oskar Tittel ; Christian Kiesling
[BELLE2-MTHESIS-2021-004]
Presented on 15 03 2021 MSc
2021
Max-Planck-Institut für Physik
/ Munich
In 2001, the BaBar and Belle experiments have convincingly confirmed the CP violation within the B meson system as predicted by the Standard Model (SM). [...]
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2021-03-18
13:32 |
Search for an invisibly decaying Z' boson and study of particle identification at the Belle II experiment
/ Paul Feichtinger ; Gianluca Inguglia ; Christoph Schwanda
[BELLE2-MTHESIS-2021-003]
Presented on 16 03 2021 MSc
2021
Atominstitut (ATI); Institut für Hochenergiephysik (HEPHY)
/ Vienna
The subject of this thesis is the search for a hypothetical Z' vector boson in events with two muons plus missing energy in the final state (e+e− → μ+μ− (Z' → invisible)) at the Belle II detector, located at the SuperKEKB accelerator in Tsukuba, Japan. [...]
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2021-02-04
08:51 |
Identification of muonic decays of tau pairs at the Belle II experiment through the implementation of machine learning algorithms
/ Lukas Linauer ; Gianluca Inguglia ; Christoph Schwanda
[BELLE2-MTHESIS-2021-002]
Presented on 13 01 2021 MSc
2021
HEPHY
/ Wien
The Belle II experiment, installed at the electron-positron collider SuperKEKB in Tsukuba, Japan, plans to collect around 50 ab −1 of data over the course of its lifetime; around 50 times more than its predecessor Belle. [...]
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2021-01-27
21:11 |
Determination of the gyro-electric reflection and transmission coefficients in the fused quartz iTOP cherenkov particle ID detector at the Belle II experiment
/ Michael Jeandron ; Robert Kroeger
[BELLE2-MTHESIS-2021-001]
Presented on 06 12 2019 MSc
2019
University of Mississippi
/ Oxford, MS
The thesis presents new results for the reflection and transmission coefficients for Cherenkov photons in a strong magnetic field at the interface between the fused quartz of and the surrounding nitrogen gas within the iTOP particle detector, a sub-system of the Belle II experiment. [...]
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2020-12-08
10:38 |
Trigger Studies for e+ e− → π+ π− γ and e+ e− → μ+ μ− and Implementation of a New DAQ Logging and Monitoring System at Belle II
/ Anselm Baur ; Günter Quast ; Florian Bernlochner
[BELLE2-MTHESIS-2020-009]
Presented on 30 10 2020 MSc
2020
KIT
/ Karlsruhe
For high-precision measurements, all influences, however small, must be taken into account when evaluating the measurement data. [...]
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2020-11-02
13:34 |
In-depth characterization of diamond sensors for an update of the Belle II radiation monitor
/ Alice Gabrielli ; Lorenzo Vitale ; Dorigo Mirco
[BELLE2-MTHESIS-2020-008]
Presented on 16 10 2020 MSc
2020
University of Trieste
/ Trieste
This thesis aims at deepening and improving the methods to characterise the response of diamond detectors in view of an upgrade of the radiation monitor of the Belle II particle- physics experiment. [...]
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2020-11-01
20:14 |
First charmless B decay reconstruction in Belle II data
/ Sebastiano Raiz ; Diego Tonelli
[BELLE2-MTHESIS-2020-007]
Presented on 18 09 2020 MSc
2020
University of Trieste
/ Trieste (ITA)
This is an experimental particle physics thesis aimed at the first reconstruction of charmless decays of B mesons in Belle II data. [...]
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