In an unprecedented achievement, CERN physicists have successfully transported antimatter by truck, paving the way for groundbreaking research that could elucidate the dominance of matter in the universe. This successful transport across the European Organization for Nuclear Research (CERN) campus in Geneva demonstrated that antimatter, one of the most fragile substances known, can be moved without being destroyed. According to a report by Live Science, this capability allows scientists to take antimatter to quieter laboratories in Europe, where ultra-sensitive experiments are less affected by interference.
Stefan Ulmer, spokesperson for the BASE (Baryon Antibaryon Symmetry Experiment) collaboration, stated that this achievement opens up a new universe of precise measurements outside CERN. Current theory suggests that the Big Bang should have produced equal amounts of matter and antimatter, which would annihilate each other, leaving a dark and empty universe. However, the observable universe is predominantly made of matter, and physicists believe that any measurable difference between matter and antimatter could offer a crucial clue to solving this mystery.
CERN has been producing antimatter for decades through high-energy particle collisions in its ‘antimatter factory.’ However, the same equipment that creates these particles generates magnetic fluctuations that can interfere with the extremely precise measurements scientists attempt to make. The possibility of transporting antimatter to more stable environments could help, but its movement is notoriously difficult, as contact with common matter results in instant destruction in an explosion of energy.
To prevent this, scientists confine antimatter particles using finely tuned electric and magnetic fields in an almost perfect vacuum, conditions difficult to maintain even in a stationary laboratory, let alone in a moving vehicle. In the experiment, Ulmer and his team loaded 92 antiprotons, the antimatter counterparts of protons, into a portable trap and transported them approximately 8 kilometers around the CERN campus. During the journey, the particles were suspended in an almost perfect vacuum and held in place by electric and magnetic fields, avoiding contact with the container walls.
The team monitored the particles throughout the journey and reported that they remained stable despite road vibrations and movements. Even in the worst-case scenario, the experiment posed little risk, as the amount of antimatter involved was extremely small and its annihilation would release only an insignificant amount of energy. According to CERN, all the antimatter ever produced at the facility would generate enough energy to light a bulb for just a few minutes.
The successful test does not immediately change how antimatter is studied but demonstrates that its transport is technically feasible. This, in turn, opens the possibility of moving antiprotons to quieter laboratories across Europe, such as Heinrich Heine University Düsseldorf in Germany, where calmer conditions may allow for more precise measurements. Such measurements could help scientists detect even the subtlest differences between matter and antimatter, indicating why matter came to dominate the universe and offering clues to physics beyond the Standard Model.
Gautier Hamel de Monchenault, CERN’s director of research and computing, declared that the institution is at the beginning of an exciting scientific journey that will allow for a deeper understanding of antimatter.
Original published at O Cafezinho.