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Physics World Particle & Nuclear Briefing 2025

Physics World Particle & Nuclear Briefing 2025

Welcome to this Physics World Particle & Nuclear Briefing bringing you the best of our recent coverage in these two areas.

In this issue, we talk to Mark Thomson, who is set to take over running the world’s largest particle-physics lab on 1 January 2026. As CERN director-general, Thomson explains that a large part of his job will involve planning the next big collider to succeed the lab’s Large Hadron Collider (LHC).

Fusion is another huge multinational, multimillion dollar endeavour and there is no bigger project than the ITER fusion tokamak currently under construction in Cadarache, France. We report how the tokamak will now not fire up until 2035 with “full power” mode having to wait until 2039.

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