nLab
matter

Idea

In particle physics, matter is a bound state? of fermionic particles.

This is in contrast to force fields, whose quanta? are bosonic particles.

In the standard model of particle physics, all matter fields are sections of a spinor bundle on spacetime which is associated of a $U(1)\times \mathrm{SU}(2)\times \mathrm{SU}(3)$-principal bundle.

In the standard model of cosmology matter is characterized as part of the energy-momentum density with specific parameter of state $w=p/\rho$, see at FRW model.

Related concepts

• energy

  • matter, radiation?, cosmological constant

• force, spacetime

• spinors in Yang-Mills theory, minimal coupling

• dark matter