The photon and gluon do not get a mass through renormalization because gauge symmetry protects them from getting a mass. This is a consequence of the Ward identity. The W-boson and the Z-boson get their masses through the Higgs mechanism; they do undergo mass renormalization through the renormalization of the electroweak theory. Neutral particles ...
Found on
http://en.wikipedia.org/wiki/Self-energy
Electric Railway near Dyke Marsh, 1930 (NARA), http://www.cr.nps.gov/history/online_books/hih/george_washington/george_washington2.htm ...
Found on
http://en.wikipedia.org/wiki/Self_energy
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