# Standard model gauge anomaly cancellation

1. ### tom.stoer

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There are quite subtle gauge anomaly cancellations in the standard model.

Does anybody know a good summary about the algebraic constraints for number of fermions per generation, value of electroweak charges, etc.?

2. ### Bill_K

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Weinberg, QFT Vol II, all of Chapter 22.
(To the extent that anything written by Weinberg may be called a "summary". )

In particular, pp.385-386 lists constraints for the Standard Model.

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thanks

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