# Masters Theses

 2019-10-0413:19 Untagged Exclusive Analysis of the Semileptonic Decay $B\rightarrow\pi\ell\nu$ from Belle II Data in Preparation for |$V_{ub}$| Extraction / Svenja Granderath ; Prof. Dr. Jochen Dingfelder ; Dr. Peter Lewis [BELLE2-MTHESIS-2019-006] Presented on 19 09 2019 MSc 2019 Physikalisches Institut / Bonn, Germany In this thesis an untagged exclusive analysis of the charmless semileptonic decay $B\rightarrow\pi\ell\nu$ using an integrated luminosity of 5.6 $fb^{−1}$ of early Belle II data was discussed. [...] Fulltext: PDF; 2019-09-1003:37 High Energy KL Calibration at Belle II using Initial State Radiation / Lachlan Vaughan-Taylor ; Kevin Varvell ; Andrew Bakich [BELLE2-MTHESIS-2019-005] Presented on 30 08 2019 MSc 2019 The University of Sydney / Sydney This thesis presents a feasibility study of a method for KL calibration at the Belle II experiment, using initial state radiation (ISR) production of the KS KL final state. [...] Fulltext: PDF; 2019-08-0110:54 Exclusive untagged analysis of the semi-leptonic decay B→ρlν in preparation for extracting |V_ub| using early Belle II data / Lex Greeven ; Prof. Dr. Jochen Dingfelder ; Dr. Peter Lewis [BELLE2-MTHESIS-2019-004] Presented on 01 08 2019 MSc 2019 Physikalisches Institut / Bonn In this thesis, the decay B → ρlν was studied using Belle II Monte Carlo simulation corresponding to the early Belle II data size of 6.5 fb−1. [...] Fulltext: PDF; 2019-04-2508:47 Search for Highly Ionizing Particles with the Pixel Detector in the Belle II Experiment / Katharina Dort ; Dr. Jens Soeren Lange [BELLE2-MTHESIS-2019-003] Presented on 25 04 2019 MSc 2019 II. Physics Institute / Giessen, Germany The Belle II experiment located at the high-energy research facility KEK in Tsukuba (Ibaraki) Japan started operation in 2018. [...] Fulltext: PDF; Supporting Information to thesis: PDF; 2019-03-2107:29 Reconstruction Methods for Semi-leptonic Decays of B-mesons with the Belle II Experiment / Nadia Toutounji ; Kevin Varvell [BELLE2-MTHESIS-2019-002] Presented on 21 01 2019 MSc 2019 The University of Sydney / Sydney The Belle II detector located in Tsukuba, Japan, building on the work of its predecessor Belle, is scheduled for long-term data collection from electron-positron $e^{+} e^{-}$ collisions commencing in early 2019, for the purpose of studying rare B-meson decays in the search for new physics beyond the Standard Model. [...] MPhil thesis: PDF; 2019-01-2815:50 Sensitivity Studies for the Branching Fraction of the B to K(*) nu nu Decays with an Inclusive Tag B Reconstruction for the Belle II Experiment / Benjamin Haser ; Prof. Dr. Thomas Kuhr [BELLE2-MTHESIS-2019-001] Presented on 28 11 2018 MSc 2018 Ludwig-Maximilians-Universität / munich In this thesis a sensitivity study for the B to K(*) nu nu transitions will be provided by using the Belle II analysis software framework and Monte Carlo samples [...] 2018-11-1915:59 Studies on the neural z-Vertex-Trigger for the Belle II Particle Detector / Fernando Abudinén ; Jochen Schieck ; Christian Kiesling [BELLE2-MTHESIS-2018-007] Presented on 28 01 2014 MSc 2014 Ludwig-Maximilians-Universität / Munich The electron-positron particle collider KEKB together with its Belle detector in Tsukuba, Japan are currently being upgraded. [...] Fulltext: PDF; 2018-09-2516:46 Radiation monitor with diamond sensors for the Belle II experiment at SuperKEKB / Giovanni Bassi ; Lorenzo Vitale ; Livio Lanceri ; Chiara La Licata [BELLE2-MTHESIS-2018-006] Presented on 17 09 2018 MSc 2018 University of Trieste / Trieste The thesis focuses on the development of a radiation monitor system based on synthetic diamond detectors for the Belle II particle-physics experiment. [...] Fulltext: PDF; 2018-08-1401:15 Tracking studies for the Belle II detector / Filippo Dattola ; Lorenzo Vitale ; Diego Tonelli [BELLE2-MTHESIS-2018-005] Presented on 20 07 2018 MSc 2018 University of Trieste / Trieste My master thesis is a data-analysis project targeted at studying and improving the charged-particle tracking performances of the Belle II experiment at SuperKEKB. [...] Fulltext: PDF; 2018-08-1307:43 Study of multivariate techniques in the search of the decay channel $B^{0} \rightarrow D^{-}\pi{-}\mu^{+}\mu^{+}$ at the Belle II experiment / Alejandro De Yta Hernández ; Eduard de la Cruz Burelo [BELLE2-MTHESIS-2018-004] Presented on 17 08 2017 MSc 2017 CINVESTAV / Mexico City In this work, we apply and compare three different multivariate classification methods based on machine learning techniques in order to study the decay channel B 0 → D − π − μ + μ + in the Bell II experiment, located in the B-factory SuperKEKB. [...] Fulltext: PDF;