- How did Wilhelm Weinberg's independent derivation relate to Hardy's own work on the same principle?
Standard Model of Particle Physics
The theory unifying the known fundamental particles and forces.
- How does Noether's theorem underpin the modern Standard Model of particle physics?
- Where have physicists searched for magnetic monopoles since 1931, and why has none been found?
- What unified field theory was Einstein still searching for at the end of his life, and why did it elude him?
- Why is the quark model considered a precondition for the Standard Model?
- How did discovering the J/ψ particle confirm the existence of the charm quark?
- How can electromagnetism and the weak nuclear force be the same underlying interaction?
- Why did the universe cooling down matter for separating these two forces?
- How did CERN's 1983 discovery of the W and Z bosons confirm the theory?
- What did the Glashow-Salam-Weinberg electroweak theory predict about the W and Z bosons before they were observed?
- What are the W and Z bosons and why did the electroweak theory require an accelerator powerful enough to produce them?
- What did the 1983 detection of the W and Z bosons confirm about the Standard Model?
- Why does the existence of paired neutrino flavours imply that matter comes in generations?
- Why does the three-generation structure of matter still lack a theoretical explanation?
- How did confirming quarks inside protons support quantum chromodynamics and the Standard Model?
- Why didn't the Standard Model predict the existence of the tau lepton?
- What assumption about neutrino mass did the Standard Model make before 1998, and why?
- What made the electroweak theory's calculations produce unusable infinities before 1971?
- How did 't Hooft's renormalisability proof turn the Standard Model into a mathematically trustworthy structure?
- Why does the mass of the Higgs boson trace back to work done in Utrecht in the early 1970s?
- Why did neutrino mass contradict the Standard Model's original predictions?
- How did asymptotic freedom complete the theoretical skeleton of the Standard Model?
- What mechanism did Higgs, Englert, and Brout propose in 1964 for how particles acquire mass?
- Why is discovering that the Standard Model is 'not wrong' both satisfying and disappointing to physicists?
- How does the Higgs field give particles their mass?
- Why can a particle only oscillate between flavours if it has mass?
- What does a nonzero neutrino mass imply for physics beyond the Standard Model?
- What did Weinberg's 1967 paper demonstrate about electromagnetism and the weak nuclear force?
- Why was Weinberg's electroweak paper initially ignored before becoming a Standard Model cornerstone?
- What made The First Three Minutes a landmark in popular science writing?
- What did Gerardus 't Hooft's 1970s proof that the Standard Model is renormalisable make possible?
- What later contributions did Yang make to gauge field theory, and how do they underlie the Standard Model?
- Why does the gap between the Standard Model's prediction and the measured muon g-2 value matter for finding new physics?