Welcome to the Institute for Theoretical Physics (ITP)
QuickLinks: Lectures, Bachelor's and Master's Theses, Completed PhD Theses, Research and Applications.

Bachelor's & Master's Theses at the ITP
If you are interested in doing your Bachelor's or Master's thesis on the topic of theoretical particle physics at the ITP, feel free to drop by on the 12th floor and talk to us or send us an email. To get an idea of what we are working on, you can check out the research page of each group, or you can have a look at the completed Bachelor's and Master's theses at our institute.
Job Openings
For open PhD or postdoc positions at the ITP, check the Job Openings page or the News & Events ticker below.
News & Events

15.02.2024: KCETA Particle Physics Colloquium (posted on: 12.02.2024) In the upcoming KCETA colloquium (Thursday, 15.02., 15h45–17h00), we will have Dr. Babette Döbrich (MPI München) giving a talk on “New results for searches of exotic particles with NA62 in beamdump mode”. The colloquium will take place in Kleiner Hörsaal A. 

13.02.2024: Tuesday Particle Physics Seminar (posted on: 07.02.2024) Next Tuesday, 13.02. at 15h45, we will have a particle physics seminar by Quentin Bonnefoy (U. Strasbourg & IPHC) with a talk about “News on parity solutions to the strong CP problem”. The seminar will take place in seminar room 10/1. 

06.02.2024: Tuesday Particle Physics Seminar (posted on: 05.02.2024) Next Tuesday, 06.02. at 15h45, we will have a particle physics seminar by Daniel Maitre (IPPP Durham) with a talk about “Multivariate Integration with Neural Networks”. The seminar will take place in seminar room 10/1. 

08.02.2024: KCETA Particle Physics Colloquium (posted on: 05.02.2024) In the upcoming KCETA colloquium (Thursday, 08.02., 15h45–17h00), we will have Prof. Björn Penning (University of Zürich) giving a talk on “Recent results from the LZ experiment and future direct DM searches”. The colloquium will take place in Kleiner Hörsaal A. 

01.02.2024: ITP Seminar (posted on: 31.01.2024) In the upcoming ITP seminar (Thursday, 01.02., 14h00), Jens Boos will talk about “Nonlocal quantummechanical scattering off a point source”. The seminar will take place in room 1201. 
Research Groups at the Institute for Theoretical Physics
The Institute for Theoretical Physics (ITP) consists of five research groups.
Their activities are described below.
Stefan GiesekeResearch interests: The simulation of exclusive final states at colliders with Monte Carlo Methods. Our research aims at the best possible description of all possible final states, first and foremost at the Large Hadron Collider but possibly also for collisions of electrons and positrons or hadrons when they are hit by cosmic particles at very high energies. We improve the standard model description, mostly of the strong interaction (Quantum Chromodynamics, QCD) with systematic perturbative methods or with models for strong hadronic interactions. 
Gudrun HeinrichResearch interests: Exploring the Higgs sector: finding hints about New Physics through precision measurements requires precision calculations, which we do both within and beyond the Standard Model. We combine Effective Field Theory parametrisations of BSM effects with higher order corrections and perform studies of anomalous couplings in the Yukawa and gauge boson sectors. Scattering amplitudes: we aim to largely automate the calculation of scattering amplitudes beyond one loop. An important aspect here is the numerical evaluation of multiloop Feynman diagrams, as well as a better understanding of their mathematical structure. 
Frans R. KlinkhamerResearch interests: Fundamental aspects of quantum field theory, in particular gauge field theory. Structure of spacetime, both at very large and very small length scales. Cosmological constant problem. 
Milada M. MühlleitnerResearch interests: Collider physics, phenomenological investigations of models beyond the Standard Model, including precision calculations to Higgs observables, namely production (single and double Higgs) and decay processes; cornering the validity of the models considering theoretical and experimental constraints; baryogenesis and Dark Matter. 
Dieter ZeppenfeldResearch interests: Collider physics; QCD corrections; effective field theories; models of electroweak symmetry breaking; phenomenological investigations of mixed QCD/electroweak processes in hadronic collisions, e.g. vector boson scattering, weak boson pair production, etc. 