e/Particle physics and representation theory

Information
has gloss	eng: In physics, the connection between particle physics and representation theory is a natural connection, first noted by Eugene Wigner, between the properties of elementary particles and the representation theory of Lie groups and Lie algebras. According to this connection, the different quantum states of an elementary particle give rise to an irreducible representation of the Poincaré group. Moreover, the properties of the various particles, including their spectra, can be related to representations of Lie algebras, algebras corresponding to "approximate symmetries" of the universe.
lexicalization	eng: Particle physics and representation theory
instance of	e/Conservation law