Belle II Germany Meeting 2025
→
Europe/Berlin
0.056 (ROT building)
0.056
ROT building
Käthe-Kümmel-Straße 1
Description
Welcome to the Belle II Germany Meeting 2025, which will be hosted at University of Bonn.
The conveners of the parallel sessions on Tuesday are:
- Physics Analysis and Theory: Ana Luisa Moreira de Carvalho, Valerio Bertacchi, Nico Gubernari
- Hardware and Upgrade: Isabel Haide, Christian Bespin
- Software, Performance and Computing: Stefan Wallner, Patrick Ecker
Please contact the conveners above if you would like to give a talk in the parallel session.
Speakapp connection details can be found here.
Please book your accomodation as soon as possible.

Registration
Registration
Participants
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Registration 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1 -
Plenary Session: Opening Talks: Belle II, LHCb, Theory 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1- 1
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2
Belle II Status & German InvolvementSpeaker: Florian Bernlochner (Belle (SuperKEKB Experiment))
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5
Precision flavour physics with inclusive penguin decays (theory)Speaker: Tobias Hurth
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16:15
Coffee Break 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1 -
Social Activities: Belle II Germany Picture U1.059 (ROT)
U1.059
ROT
Käthe-Kümmel-Straße 1 -
ECR: Session 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1 -
PI Meeting U1.059 (ROT)
U1.059
ROT
Käthe-Kümmel-Str. 1- 6
- 7
- 8
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18:30
Belle II Germany Dinner Phoenica Lounge
Phoenica Lounge
Clemens-August-Straße 34, 53115 Bonn -
Social Activities: Belle II Quizz + Karaoke U1.059 (ROT)
U1.059
ROT
Käthe-Kümmel-Straße 1
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Analysis and Theory 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1- 9
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10
B->K nu nu reinterpretationSpeaker: Lorenz Ennio Gaertner (BELLE (BELLE II Experiment))
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11
Search for B->pi nu nu with tagging methodsSpeaker: Boyang Yu (BELLE (BELLE II Experiment))
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12
Search for B+->K* tau el with hadronic taggingSpeaker: Lara Fuchs (BELLE (BELLE II Experiment))
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13
Theory talk: B meson fully hadronic decaysSpeaker: Marta Burgos (Maastrich)
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Hardware and Upgrade 1.027 (ROT)
1.027
ROT
Käthe-Kümmel-Str. 1Conveners: Christian Bespin (Universität Bonn), Isabel Haide (Karlsruhe Institute of Technology)-
14
PXD Status and OperationSpeaker: Jannes Schmitz (University of Bonn)
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15
Upgrade of the Belle II Vertex Detector with depleted monolithic CMOS active pixel sensorsSpeaker: Yannik Buch ((BELLE (BELLE II Experiment)))
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16
GNN-ETM - Design and Deployment of a Graph Neural Network Trigger for the ECLSpeaker: Isabel Haide (Karlsruhe Institute of Technology)
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14
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Software/Performance/Computing U1.059 (ROT)
U1.059
ROT
Käthe-Kümmel-Str. 1-
17
Track finding efficiency in $\mu^+ \mu^- \gamma$ EventsSpeaker: Lukas Grussbach (BELLE (BELLE II Experiment))
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18
Slow pion efficiencySpeaker: Melisa-Melek Akdag (BELLE (BELLE II Experiment))
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19
Graph Neural Network based Track Finding for SVD and CDCSpeaker: Tristan Brandes (Karlsruhe Institute of Technology (KIT))
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17
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10:30
Coffee Break & Institutional Posters 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1 -
Analysis and Theory 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1-
21
Dalitz analysis of B->D pi+ piSpeaker: Melisa-Melek Akdag (BELLE (BELLE II Experiment))
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22
tau->3pi nu: integrating background contributions with neural networks in partial wave analysisSpeaker: Miriam Weiskopf (Max Planck Institute for Physics)
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23
R(D*) with inclusive taggingSpeaker: Fabio Novissimo (BELLE (BELLE II Experiment))
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24
R(D*) from 1-prong tau decays and tau polarization with hadronic taggingSpeaker: Ilias Tsaklidis
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25
Theory talk: radiative correction to B-> el nu gammaSpeaker: Max Ferré (Mainz)
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21
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Hardware and Upgrade 1.027 (ROT)
1.027
ROT
Käthe-Kümmel-Str. 1Conveners: Christian Bespin (Universität Bonn), Isabel Haide (Karlsruhe Institute of Technology)-
26
First Studies of a GNN based ECL Trigger on Versal-FPGAs for the Belle II UpgradeSpeaker: Thomas Gideon Lobmaier (BELLE (BELLE II Experiment))
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27
Upgrade of the Belle II First-Level Neural Track Trigger by Three-Dimensional Hough Finding and Deep Neural Networks on FPGAsSpeaker: Simon Hiesl (BELLE (BELLE II Experiment))
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28
Design of the OBELIX Monolithic Active Pixel Sensor for the Belle II VTX UpgradeSpeaker: Alexander Walsemann (BELLE (BELLE II Experiment))
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26
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Software/Performance/Computing U1.059 (ROT)
U1.059
ROT
Käthe-Kümmel-Str. 1-
29
Advancements in Analysis-Level Particle Identification through Machine Learning Techniques at Belle IISpeaker: Martin Bartl (Max Planck Institute for Physics)
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30
Development and Testing of a Neutron Identification Algorithm for Belle IISpeaker: Georgios Alexandris (BELLE (BELLE II Experiment))
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31
Photon efficiency calibration for MC16Speaker: Sebastiano Raiz (BELLE (BELLE II Experiment))
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32
Low-energy efficiency studies in $\tau^-\to \pi^- \pi^0\nu_\tau$ decaysSpeaker: Dr Mengchuan Du (BELLE (BELLE II Experiment))
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29
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Analysis and Theory 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1-
33
Forward-backward asymmetry in B->X el nuSpeaker: Raynette van Tonder (BELLE (BELLE II Experiment))
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34
Differential branching fraction and angular distributions in B->Xc el nuSpeaker: Ms Rajeshwari Roy (BELLE (BELLE II Experiment))
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35
Theory talk: B->K+a decays: which framework leads to consistent exclusion plots?Speaker: Xiyuan Gao (KIT)
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36
Search for a new spin 0 mediator in B->K SSpeaker: Luc Brandl (Karlsruhe Institute of Technology)
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37
Search for ALPs produced via photon-fusionSpeaker: Frederik Schmitt (Karlsruhe Institute of Technology (KIT))
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38
Theory talk: Constraining B-Mesogenesis with B->pψSpeaker: Zachary Wüthrich (Siegen)
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33
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Hardware and Upgrade 1.027 (ROT)
1.027
ROT
Käthe-Kümmel-Str. 1Conveners: Christian Bespin (Universität Bonn), Isabel Haide (Karlsruhe Institute of Technology)-
39
All-silicon detector modules for the inner pixel layers of the VTX upgradeSpeaker: Andreas Ulm (BELLE (BELLE II Experiment))
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40
PXD Emergency Shutdown InvestigationSpeaker: Paula Scholz (University of Bonn)
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41
DePFET X-ray Irradiation StudiesSpeaker: Georgios Giakoustidis (University of Bonn)
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42
Challenges Of Hardware-Software Co-Design Of A Graph Neural Network For The ECL TriggerSpeaker: Frank Michael Baptist (BELLE (BELLE II Experiment))
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39
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Software/Performance/Computing U1.059 (ROT)
U1.059
ROT
Käthe-Kümmel-Str. 1-
43
Data production and skimsSpeaker: Valerio Bertacchi (University of Bonn)
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44
SysVar: A new tool for enhancing consistency in the treatment of systematicsSpeakers: Agrim Aggarwal (BELLE (BELLE II Experiment)), Ilias Tsaklidis
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46
b2luigi for amplitude analysisSpeakers: Godo Kurten (Max Planck Institute for Physics), Miriam Weiskopf (Max Planck Institute for Physics)
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43
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16:00
Coffee Break & Institutional Posters 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1 -
PI Meeting: PI meeting II U1.059 (ROT)
U1.059
ROT
Käthe-Kümmel-Str. 1-
47
Strategie für die nächste Förderperiode (PXD, Upgrade, Software, Computing, Analysen, FSP, Theorie)
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48
Sprecher in der nächsten Förderperiode
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49
ECR issues
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51
Next Belle II Germany meeting
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47
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Poster Session 0.056
0.056
ROT building
Käthe-Kümmel-Straße 1 -
ECR: Dinner 60 seconds to Napoli
60 seconds to Napoli
Kaiserpl. 11, 53113 Bonn -
PI Dinner Antica Pizzeria Nennillo
Antica Pizzeria Nennillo
Im Krausfeld 8, 53111, Bonn
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Plenary Session 0.052 (FTD)
0.052
FTD
Kreuzbergweg 24- 52
- 53
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FTD tour (Markus Ball) 0.052 (FTD)
0.052
FTD
Kreuzbergweg 24, 53115 Bonn -
11:00
Coffee break (FTD) 0.052 (FTD)
0.052
FTD
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Plenary Session: Summaries 0.052 (FTD)
0.052
FTD
Kreuzbergweg 24-
54
ECR newsSpeakers: Ana Luisa Moreira de Carvalho (BELLE (BELLE Gruppe)), Lorenz Ennio Gaertner (BELLE (BELLE II Experiment))
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55
Summary: Theory and AnalysisSpeakers: Ana Luisa Moreira de Carvalho (BELLE (BELLE Gruppe)), Nico Gubernari, Valerio Bertacchi (University of Bonn)
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56
Summary: Hardware and UpgradeSpeakers: Christian Bespin (Universität Bonn), Isabel Haide (Karlsruhe Institute of Technology)
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57
Summary: Software and PerformanceSpeakers: Patrick Ecker (Karlsruhe Institute of Technology), Stefan Wallner (Max Planck Institute for Physics)
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54
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