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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 a down- quark) to an electron, anti neutrino and a proton (or an up-quark). Tree Feynman diagrams describe the interaction remarkably well. Unfortunately, loop diagrams cannot be calculated reliably because Fermi's interaction is not renormalizable. The solution is to replace the four-fermion contact interaction by a more complete theory - an exchange of a W boson or a Z boson as explained in the electroweak theory. The electroweak theory is renormalizable.

Before the electroweak theory and the Standard Model were constructed, Richard FeynmanRichard Phillips Feynman ( May 11, 1918 February 15, 1988) ( surname pronounced "fine-man") was one of the most influential American physicists of the 20th century, expanding greatly the theory of quantum electrodynamics. As well as being an inspiring lec and Murray Gell-MannMurray Gell-Mann (born September 15, 1929) is an American physicist. Murray Gell-Mann received the 1969 Nobel Prize in physics for his work on the theory of elementary particles. He introduced the " eightfold way" as a means to coherently organize the gre were able to determine the correct tensor structure ( vectorThe word vector means "carrier" in Latin; it is derived from the Latin verb vehere which means to carry''. In mathematics it generally refers to any element of an abstractly-defined vector space over a field. Vector (spatial): In physics and engineering, minus axial vector, V-A) of the four-fermion interaction.

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Topics: Fermi's Interaction, Fermium, Fermion, Fermi Paradox...

Fermiumeinsteinium fermium mendelevium Er Fm Full table Known properties Name, Symbol, NumberFermium, Fm, 100 Chemical series Actinides Period, Block 7, f Appearance unknown; probably metallic, silvery white or gray Atomic weight 1 E-25 kg\|[257] amu]] Electron c	FermionFermions named after Enrico Fermi, are particles which form totally-antisymmetric composite quantum states. As a result, they are subject to the Pauli exclusion principle and obey Fermi-Dirac statistics. The spin-statistics theorem states that fermions ha	Fermi paradoxRadio telescope observations play a role in researching the Fermi paradox The Fermi paradox is a paradox proposed by physicist Enrico Fermi that questions the possibilities of finding intelligent extraterrestrial life. More specifically, it deals with the
FermilabFermi National Accelerator Laboratory located in Batavia near Chicago, Illinois is a U. Department of Energy national laboratory specializing in high-energy particle physics, operated for the Department of Energy by the Universities Research Association (	Fermín LasuénFather Fermin Francisco Lasuen ( June 7, 1736 June 26, 1803) was a Spanish missionary to America. He was born in Vitoria and joined the Franciscan order, becoming ordained in 1752. In 1758 he volunteered to work in America. He arrived in Mexico in 1761 an	Fermi-Dirac statisticsIn statistical thermodynamics, Fermi- Dirac statistics determines the statistical distribution of fermions over the energy states for a system in thermal equilibrium. Fermions are particles which are indistinguishable and obey the Pauli exclusion principl
Fermi	Fermi energy	Fermi gas
Fermi liquid	Fermion condensate	Fermi problem
Fermionic condensate	Fermi's interaction	Fermin Cacho Ruiz

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