Belle II Document Server 1,975 records found  beginprevious572 - 581nextend  jump to record: Search took 0.00 seconds. 
572. Displaced track finding efficiency and detecting new long-lived particles at Belle II / Daniel Marcantonio ; Phillip Urquijo [BELLE2-MTHESIS-2022-023] Presented on 11 11 2020 MSc
2020
The University of Melbourne / Melbourne
There are numerous extensions to the Standard Model that introduce new particles that have long lifetimes, corresponding to a flight length of centimetres or more in a particle collider. [...]
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573. Measurement of the branching fraction for the decay $B \to K^{\ast}(892)\ell^+\ell^-$ at Belle II / Seema Choudhury [BELLE2-CONF-PH-2022-009]
20 September 2022

We report a measurement of the branching fraction of $B \to K^{\ast}(892)\ell^+\ell^-$ decays, where $\ell^+\ell^- = \mu^+\mu^-$ or $e^+e^-$, using electron-positron collisions recorded at an energy at or near the $\Upsilon(4S)$ mass and corresponding to an integrated luminosity of $189$ fb$^{-1}$ [...]
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574. Hadronic $B$ decays at Belle II / Sebastiano Raiz [BELLE2-CONF-PROC-2022-016]
19 September 2022

We report on recent measurements of hadronic $B$ decays using the data set collected from 2019 to 2021 by the Belle~II experiment and corresponding to an integrated luminosity of 189.8 ${\rm fb^{-1}}$. [...]
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575. Measurement of the branching fractions and CP asymmetries of B+ → π+π0 and B+ → K+π0 decays in 2019-2021 Belle II data / Thibaud Humair ; Hans-Günther Moser ; Justin Skorupa [BELLE2-CONF-PH-2022-008]
19 September 2022

We determine the branching fractions B and CP asymmetries ACP of the decays B+ → π+π0 and B+ → K+π0. [...]
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576. Semileptonic and rare decays at Belle II / Daniel Dorner [BELLE2-CONF-PROC-2022-015]
19 September 2022

The Belle II collaboration presents their first measurements of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix elements $|V_{cb}|$ and $|V_{ub}|$, as well as their first branching fraction measurement of $B\rightarrow K^*\ell^+\ell^-$ based on up to 189.26 fb$^{-1}$ of data collected at the $\Upsilon(4S)$ resonance. [...]
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577. Search for B→Kνν decays with a machine learning method at the Belle II experiment / Cyrille Praz ; Alexander Glazov [BELLE2-PTHESIS-2022-010] Presented on 23 08 2022 PhD
2022
DESY / Hamburg (Germany)
This thesis documents a search for the rare decay of a B meson into a K meson and a pair of neutrinos at the Belle II experiment, which is located along the SuperKEKB energy-asymmetric electron-positron collider. [...]
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578. Investigation of gated mode operation of the Belle II pixel detector / Cedric Hönig ; Jochen Dingfelder [BELLE2-MTHESIS-2022-022] Presented on 29 09 2016 MSc
2016
University of Bonn / Bonn
The improved superKEKB accelerator will use a continuous injection scheme. [...]
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579. Characterisation of the Final Components of the Belle II Pixel Detector and Energy Calibration using Source Measurements / Barbara Leibrock ; Jochen Dingfelder [BELLE2-MTHESIS-2022-021] Presented on 14 11 2017 MSc
2017
University of Bonn / Bonn
In this master’s thesis, the final iterations of the matrix and chips were for the first time tested together in preparation of the module mass production. [...]
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580. Characterization of final Belle II PXD production modules / Larissa von Jasienicki ; Jochen Dingfelder [BELLE2-MTHESIS-2022-020] Presented on 05 04 2022 MSc
2022
University of Bonn / Bonn
The present thesis focuses on the calibration, optimization and precision characterization of the PXD II modules, which are scheduled to be installed in the PXD detector during 2022. [...]
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581. 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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