2025 Belle II Summer Workshop

23 Jun 2025, 07:00 → 27 Jun 2025, 19:00 America/New_York

Cascades (Inn at Virginia Tech)

Leo Piilonen (BELLE (BELLE II Experiment))

Welcome to the 2025 Belle II Summer Workshop hosted by Virginia Tech. This workshop will be primarily face-to-face (with a SpeakApp connection for those who cannot attend in person). The venue will be the Inn at Virginia Tech.

The purpose of this workshop is to help students, postdocs, and more senior researchers get started and make progress on Belle II analyses, either studying a physics channel or studying detector performance. It will cover physics topics, computing, software and professional development in a hands-on tutorial format.

This workshop is open to all Belle II collaborators and we welcome attendance from across the collaboration.

SpeakApp connection: speakapp.link/to/Tio1Cg

On-campus internet is provided by eduroam.

Links to previous iterations of the Belle II Summer Workshop/School:

2024 Belle II Summer Workshop at the University of Mississippi

2023 Belle II Summer Workshop at Duke University

2022 Belle II Summer Workshop at Iowa State

2021 Belle II Summer Workshop at Virginia Tech

2020 Belle II Summer Workshop at the University of Hawai'i

2019 Belle II Summer School at Brookhaven National Laboratory

2018 Belle II Summer School at the University of Cincinnati

2017 Belle II Summer School at the University of Mississippi

HowToBelleIIandDESY.pdf

Monday 23 June

09:00 → 12:00 Monday: Explorer Event

Convener: Leo Piilonen (BELLE (BELLE II Experiment))

09:00 Welcome

Speaker: Leo Piilonen (BELLE (BELLE II Experiment))

09:10 Introduction to Particle Physics

Speaker: Tommy Lam (Virginia Tech (BELLE II Experiment))

B2SW_ParticlesAndFields_D2.pdf

09:25 Q&A

09:35 Introduction to the Physics of Particle Flavors

Speaker: Valeria Fioroni (BELLE (BELLE II Experiment))

B2SW_FlavorPhysics_D5_bkp.pptx

09:50 Q&A

10:00 Coffee break

10:30 The Belle II Experiment

Speaker: Haruki Kindo (BELLE (BELLE II Experiment))

B2SS2025Eexplorer_Belle2.pdf

B2SS2025_explorer.key

10:45 Q&A

10:55 Student panel on graduate school in physics

Speakers: Alexander Gale (BELLE (BELLE II Experiment)), Jaime Cayo (Carnegie Mellon University), Maedeh Farhoush (University of Cincinnati), Noah Brenny (Iowa State University), Quinn Campagna (University of Mississippi)

09:00 → 12:00 Monday: Registration, one-on-one meetings

12:00 → 13:15 Complimentary Lunch

13:15 → 17:30 Monday: Afternoon

Convener: Haruki Kindo (BELLE (BELLE II Experiment))

13:15 Hadronic amplitudes and related fits

Speaker: Milind Purohit (BELLE (BELLE II Experiment))

Hadronic_Amplitudes_25.pdf

14:15 Belle II software roadmap

Speaker: Frank Meier (Duke University)

BelleIISoftware_20250623.pdf

14:45 basf2 introduction

Speakers: Alexander Gale (BELLE (BELLE II Experiment)), Logan Benninghoff (BELLE (BELLE II Experiment))

Intro_basf2_LoganB.pdf

15:15 Coffee break

15:45 basf2 hands-on

Speakers: Alexander Gale (BELLE (BELLE II Experiment)), Logan Benninghoff (BELLE (BELLE II Experiment))

example1_plotting.py

example1_steering.py

example2_plotting.py

example2_steering.py

HandsOn_basf2_LB+AG.pdf

Intro_basf2_LoganB.pdf

13:15 → 17:30 Monday: Explorer Event

Convener: Leo Piilonen (BELLE (BELLE II Experiment))

13:15 Belle II MasterClass

Speakers: Alexander Gale (BELLE (BELLE II Experiment)), Jake Bennett (BELLE (BELLE II Experiment)), Leo Piilonen (BELLE (BELLE II Experiment)), Quinn Campagna (University of Mississippi), Richard Santiago Naylor (BELLE (BELLE II Experiment)), Ryan Mueller (BELLE (BELLE II Experiment))

15:15 Coffee break

15:45 Student research showcase

Speakers: Noah Brenny (Iowa State University), Quinn Campagna (University of Mississippi), Richard Santiago Naylor (BELLE (BELLE II Experiment))

Campagna_B2SW25_research_showcase.pdf

Naylorb2ss25.pdf

student_research_showcase_brenny.pdf

16:45 Q&A

Speakers: Alexander Gale (BELLE (BELLE II Experiment)), Jake Bennett (BELLE (BELLE II Experiment)), Leo Piilonen (BELLE (BELLE II Experiment)), Quinn Campagna (University of Mississippi), Richard Santiago Naylor (BELLE (BELLE II Experiment)), Ryan Mueller (BELLE (BELLE II Experiment))

18:00 → 20:00 Welcome reception

Tuesday 24 June

08:00 → 12:00 Tuesday: Morning

Convener: Jake Bennett (BELLE (BELLE II Experiment))

08:00 Registration

08:30 Welcome

Speaker: Leo Piilonen (BELLE (BELLE II Experiment))

Welcome.pdf

08:45 Belle II introduction

Speaker: Jake Bennett (BELLE (BELLE II Experiment))

250623_B2SW_Introduction.pdf

09:30 Coffee break

10:00 Belle II physics

Speaker: Kay Kinoshita (BELLE (BELLE II Experiment))

2506B2Physics.pdf

10:45 Tau physics

Speaker: Swagato Banerjee (University of Louisville (U.S.))

B2SM2025_SwB.pdf

11:15 Belle II detector overview

Speaker: Haruki Kindo (BELLE (BELLE II Experiment))

B2SS2025_Detector.pdf

12:00 → 13:30 Lunch

13:30 → 17:40 Tuesday: Afternoon

13:30 MC truth-matching intro

Speaker: Tia Crane (DESY (Belle II Group))

How_to_GIT_Clone with_SSH.pdf

How_to_Use_Jupyter_Notebook_on_KEKCC.pdf

MC_Matching_Lecture.pdf

Truth Matching Belle II Chat

Truth Matching Session GitLab

13:50 MC truth-matching hands-on

Speaker: Tia Crane (DESY (Belle II Group))

How_to_GIT_Clone with_SSH.pdf

How_to_Use_Jupyter_Notebook_on_KEKCC.pdf

MC_Matching_Lecture.pdf

Truth Matching Belle II Chat

Truth Matching Session GitLab

15:20 Coffee break

15:50 gbasf2 introduction

Speaker: Quinn Campagna (University of Mississippi)

16:10 gbasf2 hands-on

Speaker: Quinn Campagna (University of Mississippi)

25B2SW_gbasf2.pdf

Wednesday 25 June

08:30 → 11:30 Wednesday: Morning

Convener: Alan Schwartz (University of Cincinnati)

08:30 CP violation

Speaker: Soeren Prell (Iowa State University)

B2SW-CPV-Prell.pdf

09:00 Time-dependent CP violation in B to eta' KS

Speaker: Noah Brenny (Iowa State University)

etapks_b2sw_brenny.pdf

09:20 B to omega KS

Speaker: Maedeh Farhoush (University of Cincinnati)

MAEDEHFARHOUSH-BelleIISummerWorkshop.pdf

09:40 Slow control

Speaker: Naveen Baghel (BELLE (BELLE II Experiment))

B2SW_2025_NB.pdf

10:00 Coffee break

10:30 Professional Development

Speaker: Jake Bennett (BELLE (BELLE II Experiment))

250625_B2SW-ProfessionalDev.pdf

Professional development survey

11:30 → 13:00 Lunch

13:00 → 17:30 Wednesday: Afternoon

13:00 Probability and statistics - some basics for HEP

Speaker: Alan Schwartz (University of Cincinnati)

ProbStatistics.pdf

13:30 Stat/syst uncertainties hands-on

Speaker: Boyang Zhang (University of Hawaii [Belle II])

Statistics and Systematics.pdf

Stat_Sys_hands_on.ipynb

Sysvar installation instruction (if you have troubles running the code)

15:00 Coffee break

15:30 ML/AI tools in Belle II analyses

Speakers: Boyang Zhang (University of Hawaii [Belle II]), Tommy Lam (Virginia Tech (BELLE II Experiment))

ML Hands-on session 2025-1.pdf

15:50 ML/AI tools hands-on

Speakers: Boyang Zhang (University of Hawaii [Belle II]), Tommy Lam (Virginia Tech (BELLE II Experiment))

ML/AI Kaggle Link

18:00 → 21:00 Workshop dinner

Thursday 26 June

08:30 → 11:30 Thursday: Morning

Convener: Kay Kinoshita (BELLE (BELLE II Experiment))

08:30 Semileptonic B decays

Speaker: Florian Bernlochner (Belle (SuperKEKB Experiment))

B2_US_SL_Review.pdf

RevModPhys.67.893.pdf

RevModPhys.88.035008.pdf

RevModPhys.94.015003.pdf

sl_amplitude.pdf

09:00 B- to D**0 pi-

Speaker: Alexander Gale (BELLE (BELLE II Experiment))

B2SW 2025 BtoDdsPi - Alex Gale.pdf

09:20 Backgrounds

Speaker: Qingyuan Liu (BELLE (BELLE Gruppe))

BelleII_backgrounds_qyliu.pdf

10:00 Coffee break

10:30 Dark Matter (non-Belle II)

Speaker: Ian Shoemaker (Virginia Tech)

DM test Belle II workshop.pdf

11:30 → 13:00 Lunch

13:00 → 17:45 Thursday: Afternoon

Convener: Prof. Thomas Browder (University of Hawaii (Belle II))

13:00 Dark matter searches in Belle II

Speaker: Savino Longo (BELLE (BELLE II Experiment))

BelleIISummerSchool.pdf

13:30 Inelastic dark matter search in Belle II

Speaker: Tommy Lam (Virginia Tech (BELLE II Experiment))

B2SW2025_iDMTalk.pdf

13:50 D*0 to D0 A’ dark photon search in Belle

Speaker: Haruki Kindo (BELLE (BELLE II Experiment))

20250626DPSearch.pdf

14:10 AI/ML techniques in B to K* l l'

Speakers: Ethan Lee (BELLE (BELLE II Experiment)), T B D

2025_06_09_overview-3.pdf

14:30 Coffee break

15:00 Lambda-Lambda correlations

Speaker: Cynthia Nunez (BELLE (BELLE II Experiment))

LambdaSpinCorrelations_B2SW25.pdf

15:20 b to s nu nu-bar

Speaker: Yubo Han (BELLE (BELLE II Gruppe))

b →svv @BelleII-4.pdf

15:40 Decoherence in B Bbar quantum entanglement

Speaker: Lucas Stoetzer (BELLE (BELLE II Experiment))

QuantumDecoherence_SummerShoolVT2025_Lucas.pdf

16:00 CDC

Speaker: Peter Lewis (BELLE (BELLE II Experiment))

Belle II workshop 2025 CDC.pdf

16:45 Early career focus session

Speakers: Kay Kinoshita (BELLE (BELLE II Experiment)), Tommy Lam (Virginia Tech (BELLE II Experiment))

24_USB2_Climate_Report_final.pdf

Friday 27 June

08:30 → 12:10 Friday: Morning

Convener: Leo Piilonen (BELLE (BELLE II Experiment))

08:30 SuperKEKB

Speaker: Prof. Thomas Browder (University of Hawaii (Belle II))

sands_accelerator_physics_1969.pdf

SuperKEKB_VPI_2025_teb.pdf

SuperKEKB_VPI_2025_teb.pptx

09:15 Machine-detector interface

Speaker: Keisuke Yoshihara (University of Hawaii)

keisuke_MDI_B2WS_20250627_v2.pdf

10:00 Coffee break

10:30 Flash talks

11:30 Challenge contest results

Speaker: Boyang Zhang (University of Hawaii [Belle II])

11:50 Closeout

Speaker: Leo Piilonen (BELLE (BELLE II Experiment))

12:10 → 13:40 Lunch