Annika Stein

Physicist @ ETAP, Johannes Gutenberg-Universität Mainz

Talks, Theses and more

Particle Physics

DPG-Frühjahrstagung 2025 (Göttingen)

"Development of the Production Database of the High-Granularity Timing Detector for the ATLAS Phase-II Upgrade"
Contribution | March 2025

ETAP Seminar (Mainz)

"Novel Jet Flavour Tagging Algorithms exploiting Adversarial Deep Learning Techniques"
Contribution | April 2024

PostDoc (JGU), internal

ATLAS Experiment (CERN)
Exotics LUP Subgroup Meeting

"📊 CalRatio+top"
Contribution (restricted access) | April 2025


HGTD week at CERN, Plenary session Modules and Detector Units: SU, DU, Flex Tails

"💻 Feedback from expert week on DB usage"
Contribution (restricted access) | November 2025

HGTD expert week

"💻 HGTD Production Database Tutorial"
Contribution (restricted access) | November 2025

Module Assembly and Loading

"💻 ProdDB updates: interface scripts and integration with FADAPro"
Contribution (restricted access) | October 2025

Open Steering Meeting

"💻 HGTD Production Database Update"
Contribution (restricted access) | September 2025

Module Assembly and Loading

"💻 HGTD DB Tools Update"
Contribution (restricted access) | September 2025

HGTD Production Database

"💻 HGTD DB Tools Update"
Contribution (restricted access) | September 2025

HGTD Production Database

"💻 Review of (Admin) Lists"
Contribution (restricted access) | August 2025

Integration CAD Meeting

"📐 Summary of CAD drawing findings"
Contribution (restricted access) | July 2025

HGTD week at Clermont-Ferrand, Plenary session Modules and Detector Units: SU, DU, Flex Tails

"🛠️ Status and plans for flex tail pre-production"
Contribution (restricted access) | July 2025

Module Assembly and Loading

"🛠️ Flex Tail Lengths based on 3D drawings and updated tables"
Contribution (restricted access) | June 2025

Module Assembly and Loading

"💻 HGTD Tools - A new GUI to visually interact with the HGTD Production Database"
Contribution (restricted access) | May 2025

Module Assembly and Loading

"💻 Developments of Hybrid / Sensor matching algorithms with the Production Database, using information on IV curves and VBD measurements"
Contribution (restricted access) | April 2025

HGTD Production DataBase

"💻 Developments of Hybrid / Sensor matching algorithms with the Production Database, using information on IV curves and VBD measurements"
Contribution (restricted access) | April 2025

HGTD (mini) week (Monday-Thursday) during ATLAS upgrade week

"💻 Database status"
Contribution (restricted access) | March 2025

HGTD (long) week (Monday-Friday), Plenary session Modules and Detector Units

"💻 QT report: HGTD production DB development"
Contribution (restricted access) | February 2025

HGTD Production DataBase

"💻 HGTD Production database"
Contribution (restricted access) | January 2025

Module Assembly and Loading

"🛠️ Flex Tail Lengths for (Pre-)Production with ALTIROC-A"
Contribution (restricted access) | December 2024

HGTD Mini Week

"💻 Module / slot labeling schemes (for the HGTD production database)"
Contribution (restricted access) | November 2024

Module Assembly and Loading

"💻 Module / slot labeling schemes for the DB"
Contribution (restricted access) | November 2024

HGTD Demonstrator

"🛠️ Flex Tails at the Demonstrator: Recap of length measurements + proposal for order"
Contribution (restricted access) | October 2024

Module Assembly and Loading

"🛠️ Flex Tails at the Demonstrator: Lengths / stacking and further tests"
Contribution (restricted access) | September 2024

HGTD Production DataBase

"💻 Lookup table for positions / different labeling schemes"
Contribution (restricted access) | September 2024

HGTD Production DataBase

"💻 HGTD production database - current attributes"
Contribution (restricted access) | August 2024

HGTD Demonstrator special for flex tails

"🛠️ Demonstrator Checks for Flex Tail Length Calculation"
Contribution (restricted access) | July 2024

HGTD Week in Beijing, China, Plenary session Modules and Detector Units

"💻 Updates on HGTD production database"
Contribution (restricted access) | July 2024

HGTD (mini) week (Monday-Thursday) during ATLAS upgrade week

"🛠️ Flex Tail Status"
Contribution (restricted access) | April 2024

Module Assembly and Loading

"🛠️ Flex Tail Studies and New Changes"
Contribution (restricted access) | March 2024



PhD thesis

"Novel jet flavour tagging algorithms exploiting adversarial deep learning techniques with efficient computing methods and preparation of open data for robustness studies"
RWTH Publications | September 2024

RTG Review (Aachen)

"Robust Jet Tagging Algorithms and AI Safety with CMS Open Data"
Internal. Only student selected to represent HEP-experiment with a talk. | July 2023

DPG-Frühjahrstagung 2023 (Dresden)

"Development of novel machine learning algorithms for robust jet flavour classification for Run3 at CMS"
Contribution | March 2023

DPG-Frühjahrstagung 2023 (Dresden)

"Direct search for Higgs boson decay to a pair of charm quarks in the vector boson associated production mode at CMS"
Contribution | March 2023

ML4Jets Workshop 2022 (Rutgers University, US / online)

"Adversarial training for b-tagging algorithms in CMS" (On behalf of the CMS Collaboration)
Contribution | November 2022

ACAT 2022 (Bari, Italy / online)

"Improving robustness of jet tagging algorithms with adversarial training"
Contribution | October 2022

FSP CMS Workshop 2022 (RWTH Aachen)

"Towards robust jet tagging algorithms for Run3"
Contribution (restricted access) | September 2022

Annual Retreat of the GRK 2497 (Research Training Group) 2022 (Wiehl)

"Robust jet tagging algorithms (and an outlook to future plans)"
Contribution (restricted access) | September 2022

10 Jahre Higgs (RWTH Aachen)

10 Jahre Higgs. Das CERN, die RWTH und der Ursprung der Masse 🌌
Video (YouTube) | July 2022

CDCS Opening Symposium 2022 (DESY, Hamburg)

Poster: "Improving robustness of jet tagging algorithms with adversarial training"
Presented at Center for Data and Computing in Natural Sciences
Won Best Poster Award: First Place
Contribution (DESY Indico) | April 2022

DPG-Frühjahrstagung 2022 (Heidelberg / online)

"Investigation of robustness of b-Tagging algorithms for the CMS Experiment"
Contribution (Tagungsserver) | CINCO (restricted access) | March 2022

Master's thesis

"Investigation of robustness of b-Tagging algorithms for the CMS Experiment"
CERN Document Server | October 2021

FSP CMS Workshop 2021 (online)

"Investigation of robustness of deep learned b-tagging algorithms"
Contribution (restricted access) | September 2021

DPG-Frühjahrstagung 2021 (Dortmund / online)

"AI-safety for jet flavour tagging at the CMS experiment"
Contribution (Tagungsserver) | March 2021




Master and PhD projects, internal (20+ contributions on indico)

ErUM-AISafety (BMBF)
Internal meetings: AISafety

AISafety Kickoff Meeting (JGU Mainz): "Preliminary Work in Aachen: CMS Flavor Tagging (15+5)"
Contribution | April 2023

CMS Experiment (CERN)
Internal meetings: Learning and Training in CMS

CMS Data Analysis School @ CERN 2023: "Short exercise 3B: Flavour tagging"
Contribution (restricted access) | Contains also additional material, my code | June 2023

Internal meetings: X-POG office

Cross-POG Meeting: "L2 POG roundtable, BTV: Update on ParT for AK4 jets"
Contribution (restricted access) | May 2023

Internal meetings: Training Framework Restructuring

BTV: "Training Framework Restructuring [BTV Software & HLT]"
Acting as host of the meeting (restricted access) | April 2023
Acting as host of the meeting (restricted access) | March 2023

RWTH Aachen: "Kickoff-Meeting: Training Framework Restructuring [BTV Software & HLT]"
Acting as host of the meeting (restricted access) | January 2023

Internal meetings: Offline & Computing Coordination: Application Development

Reconstruction and Analysis Tools: "General status and feedback from DPGs / POGs"
Contribution as BTV Reco Contact (restricted access) | January 2023

Internal meetings: Physics Performance & Datasets Group (PPD)

PPD General Meeting: "DP note approval: Adversarial training for b-tagging algorithms in CMS"
Contribution PPD General Meeting (restricted access) | October 2022

Internal meetings: b Tag & Vertexing Physics Object Group (BTV)

Special CMS-POG BTAG-WG meeting: "Introduction to pfNano (VIRTUAL)"
Contribution BTV-POG BTAG-WG Meeting (restricted access) | May 2023

CMS-POG BTAG-WG meeting: "Adversarial training for ParticleTransformer AK4"
UPDATE: Contribution BTV-POG BTAG-WG Meeting (restricted access) | February 2023
UPDATE: Contribution BTV-POG BTAG-WG Meeting (restricted access) | January 2023
Contribution BTV-POG BTAG-WG Meeting (restricted access) | December 2022

CMS-POG BTAG-WG meeting: "BTV@HLT Session: Training Framework Restructuring"
Contribution BTV-POG BTAG-WG Meeting (restricted access) | November 2022

BTV meeting: "Summary Talk: ML4Jets Workshop"
Contribution BTV meeting (restricted access) | November 2022

CMS-POG BTAG-WG (VIRTUAL) meeting: "DP note: adversarial training for b-tagging algorithms in CMS"
Contribution BTV-POG BTAG-WG Meeting (restricted access) | September 2022

BTV meeting (x2): "Adversarial training for DeepJet"
UPDATE: Contribution BTV meeting (restricted access) | September 2022
Contribution BTV meeting (restricted access) | May 2022
Code (for DeepJet)

BTV meeting (CMS Week): "AI safety for jet flavor tagging"
Contribution BTV meeting during CMS Week (restricted access) | April 2022
Code (for a FCNN / paper)

CMS-POG BTAG-WG meeting: "TopMuEG skim code for MuEG trigger paths"
Contribution BTV-POG BTAG-WG Meeting (restricted access) | March 2022
Pull Request

CMS-POG BTAG-WG meeting (x2): "Adding DeepJet input variables to PFNano"
UPDATE: Contribution BTV-POG BTAG-WG Meeting (restricted access) | January 2022
Contribution BTV-POG BTAG-WG Meeting (restricted access) | November 2021
Pull Request

Group Theory (Mathematics)

Annual Retreat of the GRK 2497 (Research Training Group) 2022 (Wiehl)

"Our whole life is solving puzzles"
An (almost) non-physics presentation on Rubik's Cubes, speedsolving and group theoretical aspects.
Contribution (restricted access) | September 2022

Bachelor's thesis

"Die Gruppentheorie des Zauberwürfels und des Skewbs"
PDF | January 2019
Interview for laymen (podcast) | February 2019
Award | January 2020
Interview Deutschlandfunk | August 2020
Note: all linked resources are only available in German.