Belle II Germany Meeting 2023

25 Sept 2023, 13:00 → 27 Sept 2023, 19:30 Europe/Berlin

Gaede HS (KIT (Campus South))

B2FSP_Plakat.jpg

Monday 25 September

14:00 → 16:05 Plenary: Plenary 1

Convener: Torben Ferber (KIT)

14:00 Welcome

Speaker: Torben Ferber (Karlsruhe Institute of Technology (KIT))

2023_09_25_ferber.pdf

FSP_slides_protection.pdf

14:10 PXD2 Status

Speaker: Fabian Becherer (BELLE (BELLE Gruppe))

PXD2_status_Fabian_Becherer.pdf

14:55 Feebly interacting particles in rare decays

Speaker: Felix Kahlhoefer

Felix_Kahlhoefer_BelleII_Germany_FIPs.pdf

15:30 Sustainability in high energy physics

Speaker: Michael Dueren

KarlsruheBellIIDueren.pdf

16:10 → 16:30 Coffee Break

16:30 → 16:55 Plenary

16:30 B to rho nu bar nu and B to pi nu bar nu (and their correlations)

Speaker: Gudrun Hiller

Belle-II-Karlsruhe-dineutrinos2023-ghiller.pdf

17:00 → 18:00 PI Meeting: PI Meeting with PT

Convener: Thomas Kuhr (BELLE (BELLE II Experiment))

BDA0923.pdf

GermanPIs0923.pdf

17:00 PT DESY

Speaker: Maren Mainhard

Meinhard_PT_ErUM-FSP-Belle-II_2023.pdf

17:20 FSP Report

Speaker: Johanna Haeusler (BELLE (BELLE II Experiment))

Outreach B2G Meeting.pdf

17:40 Sustainability

Speaker: Thomas Kuhr (BELLE (BELLE II Experiment))

B2G_Sustainability0923.pdf

17:00 → 18:00 Young Scientist Forum

Newly Elected Representatives:
Jonas Eppelt ( jonas.eppelt@kit.edu ) as PhD Representative
Fabian Becherer ( fabian.becherer@desy.de ) as PostDoc Representative

Convener: Christian Wessel (DESY (Belle II))

17:00 Election

Speaker: Christian Wessel (DESY (Belle II))

YoungScientistForum_Election_FSP2023_CWessel.pdf

17:30 General Discussion

Speaker: Christian Wessel (DESY (Belle II))

YoungScientistForum_Discussion_FSP2023_CWessel.pdf

19:00 → 21:00 FSP Dinner

Tuesday 26 September

09:00 → 10:30 Parallel: Analysis and Theory: Morning session

Convener: Pablo Goldenzweig (KIT (Karlsruher Institut fuer Technologie KIT))

09:00 B+ -> K+ nu nu at Belle II

Speaker: Eldar Ganiev (BELLE (BELLE Gruppe))

b2knunu@FSP_260923.pdf

09:18 B0 -> K*0 nu nu and B+ ->K+ nu nu in global SMEFT fits

Speaker: Lara Nollen

Belle_II_Nollen.pdf

09:36 A model-independent likelihood function for the Belle II B+ -> K+ nu nu analysis

Speaker: Lorenz Ennio Gaertner (BELLE (BELLE II Experiment))

fsp23.pdf

09:54 Dark Matter from B and tau Decays

Speaker: Robert Ziegler

Belle2_Ziegler (2).pdf

10:12 iDM+Dark Higgs

Speaker: Patrick Ecker (Karlsruhe Institute of Technology)

2023_09_26_idmdh_fsp.pdf

09:00 → 10:30 Parallel: Hardware and Upgrade: Morning

09:00 Upgrade of Belle II Vertex Detector with CMOS Pixel Technology

Speakers: Benjamin Schwenker (BELLE (BELLE II Experiment)), Marike Schwickardi (BELLE (BELLE II Experiment))

Schwenker_DMAPS.pdf

09:25 Real time decomposition of beam backgrounds at Belle II with neural nets

Speaker: Benjamin Schwenker (BELLE (BELLE II Experiment))

benjamin_background_monitor.pdf

09:50 Graph Neural Networks for the first Level Trigger at Belle II – A concept study on future hardware upgrades

Speaker: Marc Neu (Karslruher Institute for Technologie (KIT))

BelleII_FSP_26092023.pdf

BelleII_FSP_26092023.pptx

09:00 → 10:30 Parallel: Software, Performance and Computing: Morning Session

Convener: Matthias Schnepf (KIT)

09:00 Belle II Academy Software project

Speaker: Christian Wessel (DESY (Belle II))

BelleIIAcademy_SoftwareProject_FSP2023_CWessel.pdf

09:18 Status of the BASF2 Software Project

Speaker: Giacomo De Pietro (Karlsruhe Institute of Technology)

20230926_basf2.pdf

09:36 Automated Photon Energy Resolution Calibration

Speaker: Alexander Heidelbach (KIT)

FSP23_26092023_handout.pdf

FSP23_26092023.pdf

09:54 Belle II track finding

Speaker: Thomas Lueck (LMU, Belle II)

b2germany2023.pdf

10:30 → 11:00 Coffee Break

11:00 → 12:30 Parallel: Analysis and Theory: Noon session

Convener: Pablo Goldenzweig (KIT (Karlsruher Institut fuer Technologie KIT))

11:00 Discriminating B → D∗ ℓν form factors via polarization observables and asymmetries

Speaker: Marco Fedele

Fedele.pdf

11:18 D*lu (angular analysis)

Speaker: Markus Prim (BELLE (BELLE II Experiment))

FSP_AngularAnalysis.pdf

11:36 First Simultaneous Determination of Inclusive and Exclusive |Vub|

Speaker: Lu Cao (BELLE (BELLE Gruppe))

FSP_LuCao.pdf

11:54 B->Xu l nu and inclusive |Vub| at Belle II

Speaker: Tommy Martinov (BELLE (BELLE II Experiment))

B2Xulnu_inclusive_FSP_2023.pdf

12:12 Recent B->hadron results from Belle II

Speaker: Justin Skorupa (MPI for Physics)

B2Germany_2023.pdf

11:00 → 12:35 Parallel: Hardware and Upgrade: Noon session

11:00 PXD power supplies

Speaker: Jannes Schmitz (University of Bonn)

PXD_PS_jschmitz_B2germany.pdf

11:25 PXD irradiation

Speaker: Georgios Giakoustidis (University of Bonn)

Giakoustidis_test_structure_irradiation.pdf

11:50 Status and upgrade of the single track trigger

Speaker: Christian Kiesling (Belle/MPIM (H1 / MPI Muenchen))

German_BelleII_Meeting_20230925_CK.pdf

12:15 Displaced vertex trigger

Speaker: Elia Schmidt (2024-08-15 00:00:00)

dvt_b2germany_26:09.pdf

11:00 → 12:30 Parallel: Software, Performance and Computing: Noon session

Convener: Matthias Schnepf (KIT)

11:00 Graph Neural Network based Track Finding in the CDC

Speaker: Lea Reuter (Karlsruhe Institute of Technology (KIT))

23_09_26_FSP_CDCTrackFinding_LeaReuter.pdf

11:18 Object Condensation for ECL Clustering on Trigger Level

Speaker: Isabel Haide (Karlsruhe Institute of Technology)

FSPMeeting_IsabelHaide_ECLClustering.pdf

11:36 Selective background simulation using graph attention networks

Speaker: Boyang Yu (BELLE (BELLE II Experiment))

FSP_SmartBKG_Boyang.pdf

11:54 Generation of PXD background using GANs

Speaker: Fabio Novissimo (BELLE (BELLE Gruppe))

PXD_background_generation_Fabio_Novissimo.pdf

12:12 Exploring NN architectures beyond BDTs in inclusive tagging of B+ -> K*+ nu nubar

Speaker: Caspar Schmitt (Belle (SuperKEKB Experiment))

B2Germany23-3.pdf

12:30 → 14:00 Lunch

14:00 → 15:30 Parallel: Analysis and Theory: Afternoon

Convener: Pablo Goldenzweig (KIT (Karlsruher Institut fuer Technologie KIT))

14:00 The study of X(3915) at Belle

Speaker: Yaroslav Kulii (BELLE (BELLE II Experiment))

Kulii.B2Germany23.pdf

14:18 tau->pi-pi-pi+nu_tau decay at Belle

Speaker: Andrey Rabusov (FHR (Bereichsreferent FH))

ger-b2_tau3pi_d9211fb.pdf

14:36 CP violation in tau -> K0 pi nu_tau at Belle

Speaker: Katarina Dugic (TUM)

Belle_2_Germany_Karlsruhe.pdf

14:54 Measuring the Weinberg angle at Belle II

Speaker: Lukas Grussbach (BELLE (BELLE II Experiment))

Grussbach_FSP2023.pdf

15:12 Lepton flavor violating decays B0 -> tau ell at Belle

Speaker: Nathalie Eberlein (BELLE (BELLE II Experiment))

Belle_II_Germany_Meeting_Nathalie.pdf

14:00 → 15:30 Parallel: Hardware and Upgrade: Afternoon

14:00 → 15:30 Parallel: Software, Performance and Computing: Afternoon

Convener: Matthias Schnepf (KIT)

14:00 Checkpointing for GPU workflows

Speaker: Jonas Eppelt (BELLE (BELLE II Experiment))

Checkpointing_FSP_2023.pdf

14:18 Belle II Software Validation: Updates and Feedback

Speaker: Arul Prakash (BELLE (BELLE II Experiment))

Arul_FSP_val.pdf

14:36 About Belle II Computing at DESY

Speaker: Dr Andreas Gellrich (BELLE (BELLE Gruppe))

gellrich_fsp_2023-09-26.pdf

14:54 Grid Storage for Local Groups in Germany

Speaker: Matthias Schnepf (KIT)

FSP_2023_grid_storage.pdf

15:30 → 16:00 Coffee Break

16:30 → 19:30 Social: Social events

16:30 Archery Workshop

Setting your sights on the target, coming to rest within yourself in order to let go at the decisive moment - intuitive archery requires more than just strength.

After a professional introduction by our trained outdoor park instructors, the participants take up bow and arrow themselves. In addition to fun, this experiential educational offer deals with topics such as concentration, deceleration, goal setting, dealing with frustration and ambition.

Speaker: Isabel Haide (Karlsruhe Institute of Technology)

16:30 Soccer Workshop

We will play a friendly game of soccer with theorist friends close to the conference site. We will organise small goals. Please don't forget to bring sports clothes and trainers for outside use.

16:30 Watercolour Workshop

Join our Watercolor Workshop for beginners! You'll create three scenes: a mountain landscape, a sunset galaxy mountain view, and an ocean view from above. I'll guide you step by step, but there's plenty of room for your own creativity. No prior skills needed, we'll start with the basics and build up from there (and don't worry, in watercolor, the paint has a mind of its own, so perfection isn't the goal!).

All materials are included in the registration fee, and there's enough paper to retry. Don't miss the chance to explore watercolor painting!

Speaker: Lea Reuter (Karlsruhe Institute of Technology (KIT))

17:00 Dancing Workshop

Join us for one-hour of beginner-friendly Dancing Workout Workshop, where the rhythms of salsa, merengue, hip-hop and african beats will make you forget all your worries. This course requires no prior knowledge of dancing, so if you want to learn basic steps for any of the dancing styles above or have a nice cardio workout, this is just the opportunity for you. We will start with warm-up, move onto a more intensive part and finish with the cool down exercises. Get ready for an occasional battle to spice things up.
This workshop will take place in an inside hall in a neighboring building to where the prior program takes place. We would like to ask you to bring sports clothes and trainers for inside use.

Speaker: Slavomira Stefkova (KIT)

21:00 → 23:00 Social: Pub Quiz

Wednesday 27 September

08:00 → 09:30 PI Meeting

Convener: Thomas Kuhr (BELLE (BELLE II Experiment))

BDA0923.pdf

GermanPIs0923.pdf

09:30 → 10:00 Coffee break

10:00 → 12:10 Plenary: Summary

Convener: Torben Ferber (Karlsruhe Institute of Technology (KIT))

10:00 Hardware/Upgrade Summary

Speakers: Benjamin Schwenker (BELLE (BELLE II Experiment)), Fabian Becherer (BELLE (BELLE Gruppe))

summary_hardware.pdf

10:25 Software/Performance/Computing Summary

Speakers: Matthias Schnepf (KIT), William Sutcliffe (BELLE (BELLE Gruppe))

FSP_2023_softwar_performance_computing_summary.pdf

10:50 Analysis/Theory Summary

Speakers: Eldar Ganiev (BELLE (BELLE Gruppe)), Lu Cao (BELLE (BELLE Gruppe)), Pablo Goldenzweig (KIT (Karlsruher Institut fuer Technologie KIT))

FSP23_PhysicsSummary.pdf

11:30 Belle II Social Media: Warum und wie?

Speaker: Isabel Haide (Karlsruhe Institute of Technology)

belleiisocialmedia_why_animated.pdf

11:50 Closeout

Speaker: Thomas Kuhr (BELLE (BELLE II Experiment))

Closeout0923.pdf

fsp_pictures.pdf