# PhD Theses

 2021-11-2922:14 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. [...] Fulltext: PDF; 2021-11-2817:09 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. [...] Fulltext: PDF; 2021-10-0403:20 Search for D+ → K- K0s π+ π+ π0 at the Belle Experiment and Development of the Read-Out System for the Pixel Detector of the Belle II Experiment / Dmytro Levit ; Stephan Paul [BELLE2-PTHESIS-2021-017] Presented on 13 02 2019 PhD 2019 Technische Universität München / München The thesis describes development of a read-out system of the pixel detector at Belle II and search for a rare D+decay in full data sample of Belle experiment. [...] Fulltext: PDF; 2021-08-2016:01 Searches for an invisible Z' and for the dark Higgsstrahlung A'h' process in μ⁺μ⁻ plus missing energy final states at Belle II / Marcello Campajola ; Guglielmo De Nardo ; Francesco Di Capua [BELLE2-PTHESIS-2021-016] Presented on 24 06 2021 PhD 2021 Università di Napoli "Federico II" / Napoli (IT) The work presented in this thesis concerns two searches for dark sector mediators in \emep\ annihilations at the center-of-mass energy of 10.58~GeV with the Belle II experiment [...] 2021-08-0911:48 Real-Time Trigger and online Data Reduction based on Machine Learning Methods for Particle Detector Technology / Steffen Baehr ; Juergen Becker [BELLE2-PTHESIS-2021-015] Presented on 16 07 2020 PhD 2020 KIT / Karlsruhe Modern particle accelerator experiments are producing immense amounts of data online during their operation. [...] Fulltext: PDF; 2021-07-0114:13 Calibration of aerogel ring-imaging Cherenkov detector in Belle II spectrometer / Manca Mrvar [BELLE2-PTHESIS-2021-014] Presented on 10 01 2019 PhD 2019 University of Ljubljana / Ljubljana, Slovenia The Aerogel Ring-Imaging Cherenkov (ARICH) detector provides a charged particle identification in the endcap region of the Belle II spectrometer at the SuperKEKB asymmetric-energy e + e − collider in Tsukuba, Japan. [...] Fulltext: PDF; 2021-07-0101:13 Time Dependent Charge-Parity Violation in B0 → KS0KS0KS0 in Belle II early operation / Wan Kun ; Hiroaki Aihara [BELLE2-PTHESIS-2021-013] Presented on 13 04 2021 PhD 2021 University of Tokyo / Tokyo The Belle II experiment is a next-generation super B-factory experiment. [...] Fulltext: PDF; 2021-07-0101:11 Measurement of the Flavor Changing Neutral Current Decays B → Kl+l− at the Belle II Experiment / Johnny Alejandro Mora Grimaldo ; Hiroaki Aihara [BELLE2-PTHESIS-2021-012] Presented on 27 07 2020 PhD 2020 University of Tokyo / Tokyo Flavor Changing Neutral Currents (FCNC) constitute excellent probes for physics beyond the Standard Model, since their branching fractions can be affected by the presence of new, heavy particles as mediators. [...] Fulltext: PDF; 2021-06-2906:00 Development of the Aerogel RICH counter for a super B-factory experiment / Shuichi Iwata [BELLE2-PTHESIS-2021-011] Presented on 28 02 2016 PhD 2016 Tokyo Metropolitan University / Hachioji The framework to explain various phenomena in elementary particle physics, known as the standard model (SM), had completely been established by the experimental discoveries, such as the CP violation in a B decay system and the existence of a Higgs boson expected by the SM. [...] Fulltext: PDF; 2021-06-2812:32 Etude du bruit de fond induit par les nano-faisceaux du collisionneur SuperKEKB et préparation de l’analyse de physique de l’expérience Belle II / Daniel Cuesta ; Isabelle Ripp-Baudot [BELLE2-PTHESIS-2021-010] Presented on 23 09 2019 PhD 2019 IPHC / Strasbourg The Belle II experiment aims to discover new physics processes not described by the standard model of particle physics, based on measurements of unprecedented precision with B and D mesons, and τ leptons. [...] Fulltext: PDF;