Their mass is extremely low, but how light are neutrinos really? A collaboration comprising German and international research groups, among them also the Helmholtz Institute Mainz and GSI/FAIR, has optimized its experiments to determine the mass of these “ghost particles”. In doing so, they succeeded in further pushing down the upper limit on the neutrino mass scale. The results are published in the journal Physical Review Letters.
An international research team has found evidence of the existence of an exotic atomic nucleus state in an experiment at the GSI/FAIR research center in Darmstadt. Although such a state has long been predicted theoretically, it has never been observed before. The system consists of an atomic nucleus of the carbon isotope ¹¹C and an η′ meson (etaprime meson) — a short-lived particle composed of a quark and an antiquark. This system is bound exclusively by the strong interaction, i.e., the force…
FAIR and GSI mourn for Prof Guenther Rosner, a passionate physicist, co-founder of FAIR and relentless supporter of the FAIR project. He passed away on 21 March 2026 in the age of 77 years.
The student space association TU Darmstadt Space Technology e.V. (TUDSaT) has successfully completed the assembly of the TRACE satellite in the cleanroom environment of GSI/FAIR’s detector laboratory. The satellite also carries detectors from GSI/FAIR, which are designed to measure charged particles in orbit.
The Technical University of Applied Sciences Mittelhessen (THM) and GSI/FAIR in Darmstadt intend to collaborate more closely in the field of particle therapy. A corresponding collaboration agreement was recently signed by both partners. The goal is to improve particle therapy both for the Marburg Ion Beam Therapy Center (MIT) and centers worldwide, as well as to support translational and basic research like it is conducted at the GSI/FAIR accelerator facilities.
On 24 March 2026, in a world first, a team of scientists from the BASE experiment at CERN, including GSI researchers, successfully transported a trap filled with antiprotons in a truck across the Laboratory’s main site. The team managed to accumulate a cloud of antiprotons in an innovative portable cryogenic Penning trap, then disconnect it from the experimental facility, load it onto a truck and continue experiment operation after transport. This is a remarkable achievement, given that…
During the ALICE Masterclass on the GSI/FAIR campus, again this year 19 high-school students had the opportunity to analyze data from the ALICE experiment at the CERN research center. GSI/FAIR significantly contributes to the construction, operation and data analysis of ALICE. Scientists of GSI/FAIR’s ALICE research department organized the event.
The project “Innovationspartnerschaft für Hochfluss EUV-Strahlquellen in Metrologie und Bildgebung (InnoEUV)” advances laser-driven extreme ultraviolet (EUV) radiation sources for metrology and imaging. The strategic innovation partnership of Helmholtz Institute Jena (HI Jena) and GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany, with Active Fiber Systems GmbH (AFS) accelerates the transfer into practical and commercial applications.
Cosmic rays are one of the greatest challenges for space travel and pose a considerable risk to humans and materials. For the first time on European soil, an international research team in collaboration with the European Space Agency (ESA) has succeeded in providing a simulator for Galactic Cosmic Rays at the GSI/FAIR accelerator facility in Darmstadt, Germany. The results have been published in two articles in the journal “Life Sciences in Space Research.”
