List of Particles - Other

Other

• An anyon is a generalization of fermion and boson in two-dimensional systems like sheets of graphene which obeys braid statistics.
• A plekton is a theoretical kind of particle discussed as a generalization of the braid statistics of the anyon to dimension > 2.
• A WIMP (weakly interacting massive particle) is any one of a number of particles that might explain dark matter (such as the neutralino or the axion).
• The pomeron, used to explain the elastic scattering of Hadrons and the location of Regge poles in Regge theory.
• The skyrmion, a topological solution of the pion field, used to model the low-energy properties of the nucleon, such as the axial vector current coupling and the mass.
• A genon is a particle existing in a closed timelike world line where spacetime is curled as in a Frank Tipler or Ronald Mallett time machine.
• A goldstone boson is a massless excitation of a field that has been spontaneously broken. The pions are quasi-Goldstone bosons (quasi- because they are not exactly massless) of the broken chiral isospin symmetry of quantum chromodynamics.
• A goldstino is a Goldstone fermion produced by the spontaneous breaking of supersymmetry.
• An instanton is a field configuration which is a local minimum of the Euclidean action. Instantons are used in nonperturbative calculations of tunneling rates.
• A dyon is a hypothetical particle with both electric and magnetic charges
• A geon is an electromagnetic or gravitational wave which is held together in a confined region by the gravitational attraction of its own field energy.
• An inflaton is the generic name for an unidentified scalar particle responsible for the cosmic inflation.
• A spurion is the name given to a "particle" inserted mathematically into an isospin-violating decay in order to analyze it as though it conserved isospin.
• What is called "true muonium", a bound state of a muon and an antimuon, is a theoretical exotic atom which has never been observed.