Category Archives: Particle Physics

Off mass-shell: Pythagoras to the LHC, via Einstein and Feynman

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How wide is a Higgs?

In accord with Heisenberg’s uncertainty principle, short-lived particles have uncertain mass. So the Higgs boson, which gives mass to other particles, is uncertain about its own mass. New results from the CMS experiment at the CERN LHC have started to … Continue reading

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750km of solid rock: new long-baseline neutrino results

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The future of particle physics?

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