Spinors in $N=2, D=4$ supergravity can be simplified using gauge transformation and thus canonical spinors can be found. In the case of $N=2, D=4$ supergravity the gauge transformation Spin (3,1) is used. My question is how do we know which transformation can be used in a certain theory in order to simplify things?(adsbygoogle = window.adsbygoogle || []).push({});

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# How to know which gauge transformation we should use?

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