Future colliders may be bigger and more powerful than the current ones and may be used to know the following:
- Whether supersymmetry is realized in nature which will also imply that all known particles have supersymmetric partners.
- If extra dimensions exist and how we can detect them.
Some theories attempt to unify the fundamental forces by adding extra dimensions. - What exactly dark matter is.
Dark Matter - Whether the masses of elementary particles are generated by the Higgs mechanism via electroweak symmetry breaking.
- Why gravity is many times weaker than the other 3 fundamental forces (electromagnetism, strong interaction, and weak interaction)
Gravity bending spacetime - Whether the electroweak force and the strong nuclear force are different manifestations of one universal unified force.
- Whether there are other additional sources of quark flavour mixing, apart from those already present within the Standard Model.
- Why there are violations of the symmetry between matter and antimatter.
- What the exact nature of quark-gluon plasma (quark soup) is. This is a state of matter in quantum chromodynamics (QCD) which is hypothesized to exist at extremely high temperature, density, or both temperature and density.