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10.
| Study of the decay B0->KS0 pi0 at Belle II
/ Sagar Hazra ; Gagan Mohanty
[BELLE2-PTHESIS-2024-004]
Presented on 23 02 2024 PhD
2024
Tata Institute of Fundamental Research
/ Mumai, India
The $\Bz\to\KS\piz$ decay is dominated by $b \to s$ loop amplitudes. [...]
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11.
| Measurement of the branching fraction and CP asymmetry of B0 → π0 π0 decays at Belle II
/ Francis Pham ; Martin Sevior
[BELLE2-PTHESIS-2024-003]
Presented on 15 11 2023 PhD
2023
The University of Melbourne
/ Melbourne
his thesis presents a measurement of the branching fraction and CP -violation asymmetry in B0 → π0π0 decays [...]
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12.
| Improved Particle Identification with the Belle II Calorimeter Using Machine Learning
/ Abtin Narimani Charan ; Torben Ferber
[BELLE2-PTHESIS-2024-002]
Presented on 09 02 2024 PhD
2024
Deutsches Elektronen-Synchrotron DESY
/ Hamburg
This dissertation revolves around the utilization of Convolutional Neural Networks (CNNs) to advance Particle Identification (PID) within the Belle II Electromagnetic Calorimeter (ECL). [...]
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13.
| Search for $\tau^-\to\mu^-\mu^+\mu^-$ lepton flavour violating decays and measurement of the SVD cluster position resolution at Belle II experiment
/ Robin Leboucher ; Justine Serrano
[BELLE2-PTHESIS-2024-001]
Presented on 31 10 2023 PhD
2023
CPPM
/ Marseille
Keywords: Particle physics; Search for New Physics; Lepton Flavour Violation; Tau lepton decays; Spatial resolution; Vertex detector Lepton flavour violating decays are considered one of the most effective ways to search for physics beyond the standard model, as they are not allowed in the Standard Model of particle physics. [...]
Fulltext: PDF (additional files); |
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14.
| Search for the B+ to K+ nu anti-nu decay in the Belle II experiment
/ Lucas Martel ; Isabelle Ripp-Baudot ; Giulio Dujany
[BELLE2-PTHESIS-2023-019]
Presented on 20 09 2023 PhD
2023
IPHC
/ Strasbourg, France
This thesis describes the first search for the decay of a charged B meson into a charged kaon and a pair of neutrinos using a hadronic tagging method at the Belle II experiment, operating at the asymmetric electron-positron collider SuperKEKB located at KEK, Tsukuba, Japan. [...]
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15.
| Search for the Lepton Flavor Violating B+ → K+ τ (e, μ) decays with the Belle and Belle II detectors
/ Gaetano de Marino ; Karim Trabelsi
[BELLE2-PTHESIS-2023-018]
Presented on 09 12 2022 PhD
2022
Université Paris-Saclay
/ Orsay
For over a decade, many deviations from the Standard Model have been observed in semileptonic B-meson decays, for example, the departure from the lepton flavor universality in b → sll and b → c τ ν transitions. [...]
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16.
| Measurement of the properties of B+ → ρ+ρ0 decays at Belle II
/ Riccardo Manfredi ; Diego Tonelli
[BELLE2-PTHESIS-2023-017]
Presented on 09 10 2023 PhD
2023
Università di Trieste
/ Trieste
This experimental particle-physics thesis reports measurements of properties of B+ → ρ+ρ0 decays for the determination of the quark-mixing matrix angle α = arg(−(VtdV ∗)/(VudV ∗ )), a fundamental parameter of quark dynamics. [...]
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17.
| Search for B+ --> K+ tau tau with Belle and Belle II experiments
/ Vidya Sagar VOBBILISETTI ; Karim TRABELSI
[BELLE2-PTHESIS-2023-016]
Presented on 03 10 2023 PhD
2023
Université paris saclay
/ Orsay
In recent years, some deviations from the Standard Model (SM) have been observed in semileptonic B-meson decays, such as departures from lepton flavour universality in the b --> sll and b --> c tau nu transitions quantified by the R(K(*)) and R(D(*)) ratios. [...]
Fulltext: PDF; |
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18.
| Ecient Physics Signal Selectors for the First Trigger Level of the Belle II Experiment based on Machine Learning
/ Sebastian Skambraks ; Christian Kiesling
[BELLE2-PTHESIS-2023-015]
Presented on 22 11 2021 PhD
2021
Ludwig-Maximilians-University
/ Munich
A neural network based z-vertex trigger is developed for the first level trigger of the upgraded flavor physics experiment Belle II at the high luminosity B factory SuperKEKB in Tsukuba, Japan. [...]
Fulltext: PDF; |
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19.
| Search for new physics in charged lepton flavor violating processes at the Belle II experiment.
/ Marcela Garcia Hernandez ; Ivan Heredia De La Cruz
[BELLE2-PTHESIS-2023-014]
Presented on 12 06 2023 PhD
2023
Cinvestav-IPN
/ Mexico city
In particle physics, charged Lepton Flavor Violating (cLFV) processes have not been observed. [...]
Fulltext: PDF; |
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