One of the cornerstones of particle physics in the early 1960's was a phenomenologically successful theory of weak interactions based on Fermi's original idea  of a direct interaction of four spin-1/2 fields. Lire la première page
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5.0 étoiles sur 5Electroweak theory in a very physical language2 février 2000
Par Lubos Motl - Publié sur Amazon.com
It has become standard to emphasize the gauge symmetries - those spontaneously broken by the Higgs mechanism - as the origin of the electroweak interactions. The author instead follows a different route. He does a masterful job of deriving the electroweak theory by adding more fields and terms one after another in order to maintain the tree unitarity, i.e. a sufficient power law decrease of various tree amplitudes with the energy. This leads to the electroweak theory in the physical gauge without any recourse to the gauge principle. It is easy for the reader to appreciate the logic, the experimental and/or theoretical inevitability, and the physical principles behind the construction that ultimately leads to the electroweak theory.