Sorry for this "stupid" question... but I am having some problem in understanding how can someone start from let's say an SU(2) triplet and arrive in a 2x2 matrix representation of it in the Lagrangian...(adsbygoogle = window.adsbygoogle || []).push({});

An example is the Higgs-triplet models...I think this happens with the W-gauge bosons too in the EW theory, but I'm currently losing where in the derivation/how this happens. I think for the W's this happens with the complexification?

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# 2x2 representation of triplet

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