Quarks, Leptons and the LHC
This talk for A-level students introduces the basic building blocks of the
universe, the quarks and leptons, together with the forces they experience.
The weak interaction shows how unstable particles can decay.
The properties of the strong interaction explain why only certain combinations of
quarks are ever observed, resulting in particles which can be illustrated
by geometric patterns.
In the course of the discussion, the reason for some
of the somewhat silly names used by particle physicists will be revealed!
The talk ends with a very brief overview of how experiments at the Large
Hadron Collider at CERN are addressing unsolved questions about why the
particles are as they are.