1.In Abelian higgs model,we can come to the results that the gauge bosons acquire mass, implying the photons also acquire mass in this model；however,photons are massless in reality.How to explain this dilemma?(adsbygoogle = window.adsbygoogle || []).push({});

2.What does U(1) mean in this model?Does it correspond to some coservation laws,or selection rules?

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# About Abelian U(1) Higgs model

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