High Energy Physics


High Energy Physics (HEP) performs exciting, cutting-edge theoretical and experimental research in Quantum Fields, Particles and Gravity. The scientific aim of the department is to uncover the ultimate building blocks of matter, space, and time and the fundamental laws governing their interaction at extremely high energies and short distances, beyond currently established theories.

The High Energy Physics department is part of the Institute for Mathematics, Astrophysics and Particle Physics (IMAPP).


Below are the highlights of the High Energy Physics department. View all NewsEvents, Internal eventsPublicationsStaff, and Vacancies.

Nicolo de Groot

NWO Demonstrator for production of heavy calcium isotopes

Nicolo de Groot, professor of High Energy Physics at Radboud University, receives a Demonstrator Grant from the NWO.

Renate Loll lintje

Royal distinction for Renate Loll (Professor of Theory of Fundamental Interactions Beyond the Standard Model)

On the occasion of King's Day this year, Renate Loll (High Energy Physics), was awarded Knight of the Order of the Netherlands Lion. The award was presented by Mayor Bruls of Nijmegen, at her department of High Energy Physics.

Marieke Fransen, together with her teammates Lisa Vandeberg and Adriaan Denkers

“Mapping resistance” wins the Strategic Communication Challenge 2023!

Marieke Fransen, together with her teammates Lisa Vandeberg and Adriaan Denkers, has won the Strategic Communication Challenge 2023 of the Centre for Strategic Communication (CSC) from Logeion.


Collider Physics

We participate in collider-based particle physics experiments with a focus on the “big” questions of particle physics. Our main involvement is with the ATLAS experiment at the Large Hadron Collider (LHC) at CERN, near Geneva, Switzerland. We have had significant contributions to two out of three of its decay modes that led to the Higgs discovery publication, as well as to the further studies of its properties.

Cosmic Rays

Our group works on many aspects on ultra high energy cosmic ray physics, with the main goal of using information on the first interactions in the atmosphere to test the standard model of particle physics in an otherwise unreachable energy regime. Two current projects are the Pierre Auger Observatory and the Giant Radio Array for Neutrino Detection (GRAND).


Our group pursues gravity research on the smallest to the largest scales, and can be roughly divided into Quantum Gravity (QG) and Strong Gravity (SG) activities. Research in Quantum Gravity addresses some of the big, open questions of fundamental physics: How can we unify quantum theory and general relativity to obtain a theory of quantum gravity? Strong Gravity covers a broad range of topics, from theoretical calculations in General Relativity and numerical simulations of binary black hole mergers, to the analysis of observational data from gravitational wave detectors.

Particle Physics Theory

The Particle Physics Theory group focusses on the smallest constituents of our world and their interactions. Some of the big questions that are on our mind are; What are Nature's fundamental constituents? What is the nature of dark matter and dark energy? Is our universe stable at all?



Would you like to do your internship at High Energy Physics? Please get in touch for more information. A few examples of relevant subjects are:

  • Describing Hyperbolic Surfaces with Decorated Tree Graphs
  • Constructing and Bounding the Solutions of Quantum Gravity with the Event Horizon Telescope
  • A Cluster Algorithm for Simulating 2D Dynamical Triangulations


Obtaining a PhD in High Energy Physics can pave the way for a career in academia, research roles both within public and private sectors, positions in industry, scientific organisations, and governmental bodies. The department of High Energy Physics is offering doctoral projects across all areas of their research specialism.

PhD vacancies

Doing a PhD at Radboud University

Contact information


Huygens Building

Heyendaalseweg 135
6525AJ Nijmegen
Postal address
Postbus 9010