Our division advances the frontier of nuclear physics by developing and executing groundbreaking experiments to explore exotic nuclei and nuclear dynamics. Capitalizing on the world-unique capabilities of installations at GSI and FAIR - specifically, relativistic fully-stripped heavy ions up to ²³⁸U paired with advanced detection systems, we perform complete kinematic reconstruction and full particle identification, overcoming many limitations of conventional experiments.

Central to our work is the the R³B experiment. Having worked on developing, testing, and validating the R³B setup in Cave C at GSI, we use tools such as electromagnetic excitation, quasi-free scattering, single-nucleon knockout and fission to probe fundamental properties of nuclear matter. Our work directly addresses core questions in nuclear structure such as nuclear matter compressibility, symmetry energy, and short- and long-range nucleon correlations in nuclei with extreme neutron-to-proton ratios while providing crucial input for astrophysical nucleosynthesis and high-energy collision dynamics.

As we transition to the dedicated High-Energy Cave (HEC) at FAIR, our research will gain unprecedented momentum through higher beam intensities, optimized Super-FRS transmission, and a fully matured R³B detector setup. Integrated within the global R³B collaboration, we actively partner with over 50 institutions worldwide to drive the next generation of discovery science.

If you would like to learn more about our research program and results of our work please visit our publications-list page.

Information for staff and guests

If you are planning to come to GSI and work at the R³B experimental setup, the following information will be important for you; it is strongly recommended to use Internet Explorer/Edge and/or Mozilla Firefox, with Chrome some of the registration forms below do not function properly:

• Registration at GSI - if you register for the first time, please fill in Haik Simon as the local contact person.
• GSI Welcome Office - if you need an invitation, questions about insurance, funding oportunities...
• User service of GSI (guest house)
• Entrance requirements for caves during beam operation
• Online safety training - important: for Cave C, you need the radiation safety AND the general safety AND the Cave C safety training not older than 12 months. You will also need specific in-person safety instructions at Cave C; for this, please contact your contact person at GSI. In case you have problems with Cave C safety training access, please contact Haik Simon. Please note, when you log in for the first time, you need to type in the local contact person. Please fill in Haik Simon. This is mandatory, otherwise Haik Simon can not asign the needed instructions to the user.
• Internet is available via wifi with an eduroam account or by a guest account (link to application form).

If you have any further questions concerning the webpage of our group, please contact Aleksandra Kelic-Heil.