Belle II Document Server 15 records found  1 - 10next  jump to record: Search took 0.05 seconds. 
1. The Belle II Upgrade Program / Peter Lewis [BELLE2-TALK-DRAFT-2023-174] [BELLE2-TALK-CONF-2023-181]
28 November 2023
/ 16th International Conference on Heavy Quarks and Leptons
A summary of the upgrade program of Belle II, particularly planned LS2 upgrades [...]
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2. Feasibility of inclusive R(X) at Belle II / Peter Lewis [BELLE2-TALK-DRAFT-2023-005] [BELLE2-TALK-CONF-2023-016]
09 February 2023
/ 7th KEK Flavour-Factory Workshop
Discussing the feasibility of measuring the inclusive branching fraction ratio R(X) at Belle II as a test of lepton universality..
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3. Optimization of long-lived neutral kaon detection and rejection at the Belle II experiment / Lucas Stötzer ; Prof. Dr. Jochen Dingfelder ; Dr. Peter Lewis [BELLE2-MTHESIS-2022-041] Presented on 21 11 2022 MSc
2022
Physikalisches Institut / Bonn
We investigate an optimization of the reconstruction of neutral long living Kaons ($K_L^0$) at the Belle II experiment. [...]
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4. Determination of $|V_{ub}|$ from untagged $B^0\to\pi^- \ell^+ \nu_{\ell}$ decays using 2019-2021 Belle~II data / Svenja Granderath ; Florian Bernlochner ; Jochen Dingfelder ; Peter Lewis [BELLE2-CONF-PH-2022-017]
09 October 2022

We present an analysis of the charmless semileptonic decay $B^0\to\pi^- \ell^+ \nu_{\ell}$, where $\ell = e, \mu$, from 198.0 million pairs of $B\bar{B}$ mesons recorded by the Belle~II detector at the SuperKEKB electron-positron collider. [...]
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5. Semileptonic decay at Belle and Belle II / Peter Lewis [BELLE2-TALK-DRAFT-2022-119] [BELLE2-TALK-CONF-2022-093]
14 August 2022
/ Vietnam Flavour Physics Conference 2022
An overview of recent results in semileptonic B decays at Belle and Belle II..
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6. Belle II: status and prospects / Peter Lewis [BELLE2-TALK-DRAFT-2021-138] [BELLE2-TALK-CONF-2021-123]
20 September 2021
/ NUCLEUS – 2021. Nuclear physics and elementary particle physics. Nuclear physics technologies
The Belle II experiment at the SuperKEKB energy-asymmetric e+e− collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. [...]
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7. Tagged Analysis of $B^0\to\pi^-\ell^+\nu_\ell$ at Belle / Jonathan Wolfgang Grumke ; Jochen Dingfelder ; Peter Lewis [BELLE2-MTHESIS-2021-075] Presented on 25 08 2021 MSc
2021
Physikalisches Institut / Bonn
Using the FEI algorithm with simulated data for hadronic tagging in the reconstruction of $B^0\to\pi^-\ell^+\nu_\ell$ results in a signal yield of $626\pm 39$ when applying the same selections as Sibidanov et al., who used the FR algorithm and obtained a signal yield of $463\pm 28$. [...]
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8. Investigation of B → µ ν_µ with Inclusive Tagging at Belle II / Daniel Jacobi ; Prof. Dr. Jochen Dingfelder ; Dr. Peter Lewis ; Svenja Katharina Granderath [BELLE2-MTHESIS-2021-074] Presented on 25 08 2021 MSc
2021
Physikalisches Institut / Bonn
In this thesis the rare $B \to \mu \nu_{\mu}$ decay was investigated using the inclusive tagging approach. [...]
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9. First Conceptual Design and Studies for a Tracking Time Projection Chamber for the Belle II Experiment / Andreas Löschcke Centeno ; Jochen Dingfelder ; Peter Lewis [BELLE2-MTHESIS-2021-073] Presented on 30 08 2021 MSc
2021
Physikalisches Institut / Bonn
This thesis deals with simulating a tracking time projection chamber (TPC) for the \Btwo experiment at the SuperKEKB accelerator and using the simulation for first studies. [...]
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10. Measurement of the time-integrated mixing probability chi_d with a semileptonic double-tagging strategy and 34.6 fb^-1 of Belle II collision data / Florian Bernlochner ; Jochen Dingfelder ; Stephan Duell ; Peter Lewis [BELLE2-CONF-PH-2021-004]
06 April 2021

We present a first measurement of the time-integrated mixing probability chi_d using Belle II collision data corresponding to the integrated luminosity of 34.6 fb^-1. [...]
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