Collaborative Research Center TRR 257

Collaborative Research Center TRR 257


The Collaborative Research Center Particle Physics Phenomenology after the Higgs Discovery is a joint venture of theoretical particle physicists from the Karlsruhe Institute of Technology, RWTH Aachen University, the University of Siegen, and Heidelberg University. It is supported by the German Research Foundation (DFG).

Particle physics has long established itself as an important research discipline focused on understanding nature at a fundamental level. The current knowledge is summarized in a theory called the Standard Model of particle physics that describes strong and electroweak interactions. The discovery of the Higgs boson in 2012 formally completes the Standard Model and provides us with a consistent mathematical framework that can be used to describe nature in fine detail. However, several aspects of the Standard Model force us to raise questions about the foundations of this theory. Many proposed answers to these questions suggest that the Standard Model is a low-energy approximation to a much more fundamental theory that we strive to discover.

Scientists of the CRC will conduct research in the phenomenology of elementary particles, focusing in particular on physics related to the Higgs boson, the physics of top quarks, electroweak gauge bosons, jets, and dark matter, as well as flavor physics. Our goal is to develop novel concepts and methodologies to search for physics beyond the Standard Model through precise measurements at the LHC, at flavor factories and elsewhere.

Open positions

The CRC has openings for postdoctoral and Ph.D. positions. More information can be found here, or directly contact the principal investigators.


30.09–04.10.2024: P3H Summer School

The CRC TRR 257 is organizing a Summer School on subjects related to “Particle Physics Phenomenology after the Higgs Discovery'', which will be held in Bingen am Rhein from Sep 30 to Oct 4, 2024. It is aimed at researchers at advanced PhD and early career postdoc level and covers subjects such as Effective Field Theory, Higgs Phenomenology, Amplitudes, Resummation and Parton Showers, Flavor Physics, Machine Learning and Quantum Computing. More information can be found here.

(posted on: 10.03.2024)

14–19.04.2024: Loops and Legs in Quantum Field Theory

The 17th edition of the Workshop on Elementary Particle Physics will take place in Wittenberg, from the 14th to the 19th of April 2024. More details are available here.

(posted on: 03.03.2024)

09–11.04.2024: Beyond Flavour Anomalies

The 5th edition of the “Beyond the Flavour Anomalies” workshop will take place in Siegen, Germany, from 9th April till 11th April 2024. It will be hosted by the theoretical particle physics group of the University of Siegen. More details are available here.

(posted on: 03.03.2024)

11–12.03.2024: Annual Meeting of the CRC TRR 257

The Annual Meeting of the CRC TRR 257 will take place at KIT, where CRC members will present their current research. More details can be found here.

(posted on: 11.01.2024)

04–08.03.2024: DPG Spring Meeting

The Spring Meeting of the German Physical Society (DPG), division particle physics, takes place at KIT this year. With more than 10,000 physicists annually from Germany and abroad, the DPG-Frühjahrstagungen (Spring Meetings) rank among the largest physics congresses in Europe.

(posted on: 04.03.2024)

Recent Seminars

Christoph Ternes (LNGS), 25.07.2024, Karlsruhe

Josef Jochum (U. Tübingen), 18.07.2024, Karlsruhe

Gael Finauri (TUM), 15.07.2024, Siegen

Andrea Knue (U. Dortmund), 11.07.2024, Karlsruhe

Thomas Kuhr (LMU Munich), 09.07.2024, Aachen

Bahman Dehnadi (DESY), 01.07.2024, Siegen

Silvia Manconi (LAPTh Annecy), 27.06.2024, Karlsruhe

Maria Ubiali (University of Cambridge), 25.06.2024, Aachen

Michael Unger (KIT), 20.06.2024, Karlsruhe

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