Collaborative Research Center TRR 257

Collaborative Research Center TRR 257










Welcome

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 Ph.D. positions. More information can be found here, or directly contact the principal investigators.







News

11.03.2025: New CRC podcast episode In der neuen Ausgabe des Podcasts Strange & Charming mit dem Titel Higgs mit glühenden Kohlen erzählt Robert Harlander (RWTH), wie man ohne Mathe- und Physik-Abi Maschinenbau studieren kann, auf Postdoc-Stellen nach Projekten sucht, um am Ende Elton Wärmeleitfähigkeit zu erklären.⁠ Host: Magnus Schaaf

(posted on: 11.03.2025)

05.03.2025: Prof. Tao Han conducts research at the University of Siegen with Humboldt Research Award.

The renowned particle physicist Prof. Tao Han from the University of Pittsburgh comes to the University of Siegen for regular research stays as part of his Humboldt Research Award. He received the Award with host Prof. Wolfgang Kilian to conduct research for up to twelve months at the University of Siegen.

(posted on: 05.03.2025)

20.-22.01.2025: German strategy workshop in preparation of the ESPP update

This workshop prepared the input document of the German particle physics community to the update of the European Strategy for Particle Physics. The meeting took place at the Physikzentrum Bad Honnef, five PIs of the CRC P3H were present to shape the document.

(posted on: 27.01.2025)

18.01.2025: New episode of the CRC podcast Strange & Charming

The new episode of the CRC podcast Strange & Charming, titled “Vier Physiker mit künstlicher Intelligenz”, is out now! Enjoy it on Spotify at https://open.spotify.com/episode/2uk5e2WXjxgnOrkldHyjlP or find the complete collection at https://web.physik.rwth-aachen.de/user/harlander/CRCPodcasts/.

(posted on: 18.01.2025)

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)

Recent Seminars

Dominik Stöckinger (TU Dresden), 30.06.2025, Siegen

Patrick Hager (JGU Mainz), 16.06.2025, Siegen

Miguel Benitez (Salamanca U.), 19.05.2025, Siegen

Fu-Sheng Yu (Lanzhou U.), 10.02.2025, Siegen

Joe Davighi (CERN), 12.05.2025, Siegen

Bogdan Malaescu (U. Paris), 08.05.2025, Karlsruhe

Sandra Kvedaraite (Granada U.), 22.04.2025, Siegen

Katharina Behr (DESY), 23.01.2025, Karlsruhe

Katharina Behr (DESY), 23.01.2025, Karlsruhe

Andrea Caputo (CERN), 06.02.2025, Karlsruhe

Recent Publications
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