GSI Helmholtzzentrum für Schwerionenforschung

GSI Helmholtzzentrum für Schwerionenforschung operates a unique accelerator for heavy ions. Researchers from around the world use this facility for experiments that help them make fascinating discoveries in basic research. In addition, they continually develop new and impressive applications.

AI opens a new window into the hidden world of nuclear matter — GSI/FAIR participate in identification of hypernucleus
On the upper left, a rectangular black emulsion plate is visible. Below it, the picture that's found on the plate, showing many criss-crossing particle tracks. One of them is highlighted on the right and shows the discovery of the double-lambda nucleus.
Researchers from the High Energy Nuclear Physics Laboratory at the RIKEN Pioneering Research Institute (PRI) in Japan and their international collaborators, among them GSI/FAIR in Darmstadt, have achieved a groundbreaking discovery that bridges artificial intelligence and nuclear physics. By applying deep learning techniques, the team identified, for the first time in 25 years, a new double-Lambda hypernucleus. This marks the world’s first AI-assisted observation of such an exotic nucleus — an…
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FAIR-GSI PhD Award 2025 for Dr. Guy Leckenby — Groundbreaking measurement of exotic decay unveils solar system formation
Three men stand in front of a stage, the middle one presents a certificate.
Dr. Guy Leckenby has been awarded the FAIR-GSI PhD Award 2025 for his outstanding doctoral thesis on the study of bound-state beta decay with experiments conducted at the GSI/FAIR Experimental Storage Ring (ESR). His precision measurement of fully-ionized thallium-205 ions aided in resolving a decades-old puzzle about the origin of lead in our solar system and represents a flagship achievement for GSI/FAIR.
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FAIR – the future accelerator facility

In the next few years the new international accelerator facility FAIR, one of the largest research projects worldwide, will be erected at GSI. At FAIR an unprecedented variety of experiments will be possible. Thereby physicists from all around the world will be able to gain new insights into the structure of matter and the evolution of the universe from the Big Bang to the present.
Learn more about FAIR: GSI about FAIR or FAIR web page

Cancer Treatment with Ion Beams

GSI is the birthplace of a new form of cancer treatment. This development was the result of many years of research in conjunction with GSI’s large ion-beam accelerator system. The advantage of this new treatment modality is that the ion beam selectively damages tumor tissues while sparing the surrounding healthy tissues. More...

The Creation of New Elements

Chemical elements are produced in stars and stellar explosions. Elements are the building blocks of all materials that surround us – including every atom of our bodies. The universe is also home to a large number of atoms that do not occur on earth. One of the key tasks of the researchers at GSI is to attempt to create previously unknown elements. More...


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