Fermi's interaction | Wikipedia audio article
Channel: wikipedia tts
Date: 08/12/2018

This is an audio version of the Wikipedia Article:
Fermi's interaction


00:00:47 1 History of initial rejection and later publication
00:01:52 2 The "tentativo"
00:02:03 2.1 Definitions
00:02:11 2.1.1 Electron state
00:05:40 2.1.2 Neutrino state
00:08:06 2.1.3 Heavy particle state
00:09:59 2.2 Hamiltonian
00:16:06 2.3 Matrix elements
00:18:48 2.4 Transition probability
00:19:58 2.5 Forbidden transitions
00:21:21 3 Influence
00:33:35 4 Later developments
00:34:57 5 Fermi coupling constant
00:35:57 6 References
00:38:12 undefined



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SUMMARY
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In particle physics, Fermi's interaction (also the Fermi theory of beta decay) is an explanation of the beta decay, proposed by Enrico Fermi in 1933. The theory posits four fermions directly interacting with one another (at one vertex of the associated Feynman diagram).
This interaction explains beta decay of a neutron by direct coupling of a neutron  with an electron, a
neutrino (later determined to be an antineutrino) and  a proton.Fermi first introduced this coupling in his description of beta decay in 1933.  The Fermi interaction was the precursor to the theory for the weak interaction where the interaction between the proton–neutron and electron–antineutrino is mediated by a virtual W− boson.