FAIR is a new, unique international accelerator facility for the research with antiprotons and ions. It is ready to be built within the coming years near Darmstadt in Hesse, Germany.
The new facility, where various physics programs can be operated in parallel, will offer outstanding research opportunities and discovery potential for about 3000 scientists from about 50 countries. In the course of the coming decades the experiments will reveal consolidated findings about so far unknown states of matter and still missing information about the evolution of the Universe 13.8 billion years ago.
The Four Pillars of Physics at 
FAIR are the experiments: APPA Physics (Atomic, Plasma Physics and Applications), CBM – Compressed Baryonic Matter experiment, PANDA – Antiproton Annihilation at Darmstadt experiment and NUSTAR Physics (Nuclear Structure, Astrophysics and Reactions)
R3B
R3B is one of the experiments of NUSTAR. The aim of the R3B international collaboration is to develop and construct a versatile reaction setup with high efficiency, acceptance, and resolution for kinematically complete measurements of reactions with high-energy radioactive beams. The setup will be located at the focal plane of the high-energy branch of the Super-FRS.
The setup is adapted to the highest beam energies (corresponding to 20 Tm magnetic rigidity) provided by the Super-FRS capitalizing on the highest possible transmission of secondary beams.
The R3B setup will cover experimental reaction studies with exotic nuclei far off stability, thus enabling a broad physics programme with rare-isotope beams with emphasis on nuclear structure and dynamics. Astrophysical aspects and technical applications are also concerned. In order to cover such a large physics programme several different detection subsystems as well as sophisticated DAQ system and data-analysis software are planned (see below). The work is performed inside the R3B collaboration which includes more than 50 different institutes from all over the world.
Since April 2017 I have been elected Spokesperson of R3B
The Experimental Group of Nuclei and Particles GENP, is part of the R3B collaboration since the first days. We have been deeply involved in the R&D, design and construction of the CALIFA Calorimeter.