four-fermion interaction

См. также в других словарях:

• Four-fermion interactions — In quantum field theory, fermions are described by anticommuting spinor fields. A four fermi interaction describes a local interaction between four fermionic fields at a point. Local here means that it all happens at the same spacetime point.… …   Wikipedia

• Weak interaction — Standard model of particle physics …   Wikipedia

• Fermi's interaction — In physics, Fermi s interaction is an old explanation of the weak force, proposed by Enrico Fermi. Four fermions directly interact with one another. For example, this interaction is directly able to split a neutron (or two down quarks and an up… …   Wikipedia

• Electroweak interaction — In particle physics, the electroweak interaction is the unified description of two of the four fundamental interactions of nature: electromagnetism and the weak interaction. Although these two forces appear very different at everyday low energies …   Wikipedia

• Yukawa interaction — In particle physics, Yukawa s interaction, named after Hideki Yukawa, is an interaction between a scalar field phi and a Dirac field Psi of the type:V approx garPsi phi Psi (scalar) or g ar Psi gamma^5 phi Psi (pseudoscalar).The Yukawa… …   Wikipedia

• Fundamental interaction — In physics, a fundamental interaction or fundamental force is a mechanism by which particles interact with each other, and which cannot be explained in terms of another interaction. Overview In the conceptual model of fundamental interactions,… …   Wikipedia

• Technicolor (physics) — Beyond the Standard Model Standard Model …   Wikipedia

• QCD matter — Quark matter or QCD matter (see QCD) refers to any of a number of theorized phases of matter whose degrees of freedom include quarks and gluons. These theoretical phases would occur at extremely high temperatures and densities, billions of times… …   Wikipedia

• Technicolor (física) — Las teorías Technicolor son modelos de física Más allá del modelo estándar que nos llevan a la ruptura de la simetría electrodébil, el mecanismo por el cual las partículas elementales adquieren masa. Las primeras teorías technicolor se basaron en …   Wikipedia Español

• Nambu-Jona-Lasinio model — In quantum field theory, the Nambu Jona Lasinio model (named for its developers Yoichiro Nambu and Giovanni Jona Lasinio) is a theory of interacting Dirac fermions with chiral symmetry. It is an example of a four fermion interaction. This model… …   Wikipedia

• Gross-Neveu model — The Gross Neveu model is a quantum field theory model of Dirac fermions interacting via four fermion interactions.We have N Dirac fermions, psi;1, ..., psi;N. The Lagrangian density is:mathcal{L}=overline{psi} a left(ipartial!!!/ m ight) psi^a +… …   Wikipedia