fields and particles in particle physics
and in the standard model of particle physics:
matter field fermions (spinors, Dirac fields)
flavors of fundamental fermions in the standard model of particle physics: | |||
---|---|---|---|
generation of fermions | 1st generation | 2nd generation | 3d generation |
quarks () | |||
up-type | up quark () | charm quark () | top quark () |
down-type | down quark () | strange quark () | bottom quark () |
leptons | |||
charged | electron | muon | tauon |
neutral | electron neutrino | muon neutrino | tau neutrino |
bound states: | |||
mesons | light mesons: pion () ρ-meson () ω-meson () f1-meson a1-meson | strange-mesons: ϕ-meson (), kaon, K*-meson (, ) eta-meson () charmed heavy mesons: D-meson (, , ) J/ψ-meson () | bottom heavy mesons: B-meson () ϒ-meson () |
baryons | nucleons: proton neutron |
(also: antiparticles)
hadrons (bound states of the above quarks)
minimally extended supersymmetric standard model
bosinos:
dark matter candidates
Exotica
algebraic quantum field theory (perturbative, on curved spacetimes, homotopical)
quantum mechanical system, quantum probability
interacting field quantization
In quantum field theory of the scalar field , the canonical local interaction term is a Lagrangian density of the form
(with notation as at A first idea of quantum field theory).
For any bump function on spacetime, the corresponding adiabatically switched local observable is
where in the first line we have the integral over a pointwise product (this def.) of field observables (this def.), which in the second line we write equivalently as a normal ordered product, by the discusssion at Wick algebra (this def.).
The interacting field theory with Lagrangian density that of the free scalar field plus interactions of the form as above, up to order , is often called simply “-theory”.
The mass term of the free scalar field is a -interaction.
The Higgs field involves a quadratic and quartic interaction of this form.
The potential for the inflaton field in chaotic cosmic inflation is a -interaction.
An introduction to theory could be found in lecture 13 of
The weak adiabatic limit for mass-less theory was established in
See also
Last revised on January 7, 2024 at 18:16:42. See the history of this page for a list of all contributions to it.