Karlsruhe School of Elementary Particle and Astroparticle Physics: Science and Technology (KSETA)

Emanuel Pfeffer

Information

Emanuel Pfeffer

Institute: Institute of Experimental Particle Physics (ETP)
Room: CN 401 / R. 406
Phone: +49 721 608 23819
Email: emanuel.pfeffer@kit.edu

PhD Thesis

PhD Thesis Topic: tt+X production at the CMS experiment
Prof. Dr. Ulrich Husemann | Prof. Dr. Thomas Müller

Research focus

Research focus High energy top quark physics at the CMS Experiment at CERN. SM tt+heavy flavor cross section measurements. Artificial Intelligence developments for jet and event identification. Heavy flavor jet tagging algorithms.

Publications

Publications
[1] A case study of sending graph neural networks back to the test bench for applications in high-energy particle physics | In: Computing and Software for Big Science 8, 13 (2024) Linkbib ]
[3] Inclusive and differential cross section measurements of ttbb production in the lepton+jets channel at √s = 13 TeV | In: JHEP Linkbib ]
[3] Study of ttbb and ttW background modelling for ttH analyses (arXiv) Linkbib ]

Proceedings

Proceedings
[1] Inclusive and differential cross section measurements of ttbb production in the lepton+jets channel at √s = 13 TeV Linkbib ]
[2] Heavy flavor jet tagging algorithm developments at CMS for HL-LHC Linkbib ]

Unreviewed publications

publications-UNreviewed
[1] Studies on tt+bb production at the CMS experiment. MT, Karlsruhe Institute of Technology (KIT), 2021. Linkbib ]

Conferences and Talks (excerpt)

Inclusive and differential cross section measurements of ttbb production in the lepton+jets channel at √s = 13 TeV | 16th International Workshop on Top Quark Physics | Traverse City, Michigan, USA | Sep 24-29, 2023 Slides
tt+heavy flavor classification at the CMS experiment | DPG Spring Meeting | Dresden | Mar 20–24, 2023 Abstract
Heavy flavor jet tagging performance studies at CMS for High Luminosity LHC | CMS Upgrade days | CERN | Feb 6-8, 2023 Poster [restricted CERN access]
ttbb modelling for ttH analyses at the LHC | 15th Annual Meeting of the Helmholtz Alliance "Physics at the Terascale" | DESY | Nov 29–30, 2022 Talk
Status on measurements of ttH(H→bb) and ttbb at ATLAS + CMS | Modelling of the ttbb process at the LHC in light of ttH measurements | CERN | Jul 5, 2022 Talk
Heavy flavor jet tagging algorithm developments at CMS for HL-LHC | 10th Edition of the Large Hadron Collider Physics Conference | online | May 16–20, 2022 Poster, Proceedings
Graph neural network applications in tt+heavy flavor studies at the CMS experiment | DPG Spring Meeting | online | Mar 21–25, 2022 Abstract
Jet-assignments of the additional b-jets in the tt+bb lepton+jets channel using deep neural networks and graph neural networks | FSP CMS Workshop | online | Mar 22–24, 2021 Talk [restricted CERN access]
Assignment methods for b jets in tt+bb processes in the lepton+jets channel at the CMS experiment | DPG Spring Meeting | online | Mar 15–19, 2021 Abstract

Supervised Bachelor/Master theses

Generating Explanations for Graph Neural Networks for tt+X events at the CMS Experiment P. Osswald PDF
Feasibility and Reliability Studies of Graph Neural Networks for Multivariate tt+X Event Classification at the CMS Experiment at CERN Y. Cung PDF
Monte-Carlo-Simulations for tt+X-Events at the CMS-Experiment S. Lelyakin PDF
Bayesian Optimization of Graph Neural Networks with Hypergraph Inputs in tt + bb Events at the CMS Experiment C. Wolter PDF
Studien zu Graph Neural Networks in tt + bb-Prozessen am CMS-Experiment [german] T. Halenke PDF

Teaching/Tutoring

WS 22/23 Computers in Physics
SS 22 Modern Experimental Physics III
WS 21/22 Classical Experimental Physics I
SS 21 Computer-based Data Analysis

Annual work reports

KSETA annual report 2021 (restricted PDF)
KSETA annual report 2022 (restricted PDF)
KSETA annual report 2023 (restricted PDF)