From RTS (Swiss Broadcasting Corporation), Sept. 7, 2023: Fermilab’s August 10 announcement indicated the muon does not behave as theory predicts. Professor Tobias Golling, from the particle physics department at the University of Geneva, explains in a video that there are two possibilities to explain the observed discrepancy.
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From Scientific American, Aug. 28, 2023
What is the future of muon colliders? Particle physicists are seeing less challenges in their development than ten years go and are pushing for a muon collider as the P5 report comes out this fall.