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Questions related from Rajan Dogra
By the 1950s, when Yang–Mills theory, also known as non-abelian gaugetheory, was discovered, it was already known that Quantum Electrodynamics (QED) gives an extremely accurate account of...
11 November 2015 4,613 6 View
“A gauge field describes two dynamical degrees of freedom of a massless spin-1 particle. A most economic description would have been using a two component field. However, to have Lorentz symmetry,...
09 September 2014 4,795 0 View
For a massless gluon case, pure QCD field strength is not gauge invariant because of self-interaction of gluons. But the pure QCD Lagrangian gives us gauge invariance and at the same time, gauge...
08 August 2014 2,327 7 View