In general speaking,if the coupling constant is (mass) dimensionless then the quantum field theory is renormalizable.In electroweak theory the coupling constant g~e,so the coupling constant is dimensionless,then the electroweak theory(Weinberg-Salam theory) would be renormalizable.So I do not understand why in 1971(I have heard that) t' Hooft must demonstrate the Weinberg-Salam to be renormalizable.I also can not find in any text book the t'Hooft's demonstration,where can I find it?(adsbygoogle = window.adsbygoogle || []).push({});

Please forgive me if my question is not good question(I have to self-study the subject)

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# Why we must demonstrate the electroweak theory to be renormalizable?

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