Fermi universal interaction

Weak Interactions were treated by Pais who, starting from Fermi s original theory, discussed the discovery by Lee and Yang,74 almost 5 years before, of the parity violation by weak interactions, its experimental confirmation,75 the muon-electron universality,76 the idea of an intermediate boson as a mediator of weak interaction, and the two-neutrinos question. 77... 

As a chair at the University of Rome, Fermi did much of his most important work between 1927 and 1938. Along with the English physicist Paul Dirac but independently, he developed quantum-mechanical statistics that measure particles of half-integer spin (now known as fermions) between 1929 and 1932 he reformulated more simply and elegantly Dirac s then recent work on quantum electronics. In 1933-1934, he published a theory of /3-decay that included what became known as the Fermi interaction, Fermi interactions, and the Fermi coupling constant. Fie also theorized and named the neutrino ( little neutral one ), originally hypothesized by Wolfgang Pauli but not detected experimentally until 1956. 

Farmi. Enrico (1901-54) Italian-born US physicist He became a professor at Rome University, where in 1934 he discovered how to produce slow (thermal) neutrons. He used these to create new radioisotopes, for which he was awarded the 1938 Nobel Prize. In 1938 he and his Jewish wife emigrated to the USA. In 1942 he led the team that built the first atomic pile (nuclear reactor) in Chic o. Fermi was an influential theoretical physicist who, independently of Paul Dirac, discovered Fermi-Dirac statistics. He also proposed the first proper theory of weak interactions. 

Fermi, Nudear Physics, University of Chicago Press, Chicago, 1950, p. 142. the homogeneous field approximation, the field interacts with the dipole moment of the molecule (cf. Chapter 12) V x,t) = = —fi where S denotes the electric field intensity of the... 

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