(Belga) After more than three years of maintenance and repair work, the world’s largest research machine is back in service. The European Organization for Nuclear Research (CERN) will restart its Large Hadron Collider (LHC).
The first two beams of particles should be sent in opposite directions on Friday through a 27-kilometer underground ring at the Franco-Swiss border in Ain, the periphery at the gate of Geneva. The suspension of the world’s most powerful accelerator, closed since 2019, was extended due to the pandemic. Its restart should be spread over several phases. It would take six to eight weeks for the machine to run at full speed, and only then could proton collisions occur again, revealing the fundamental laws of the universe. The particle accelerator makes it possible to simulate the time of the creation of the universe about 14 billion years ago. During the collision, researchers observe decay processes and gain insight into the smallest components of matter, elementary particles. Among other things, the Higgs boson, which was theoretically described 40 years ago, was first detected at CERN in 2012. It contributes to elementary particles having mass. (belga)
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