A. Zee, Quantum Field Theory in a Nutshell · Problem IV.7.8

Field Theory Redux

Physics — QFT

Problem

Compute the pentagon anomaly by Feynman diagrams in order to check remark 6 in the text. In other words, determine the coefficient cc in ∂μJ5μ=...+cϵμνλσtr AμAνAλAσ\partial_\mu J_5^\mu = ... + c\epsilon^{\mu\nu\lambda\sigma} \text{tr } A_\mu A_\nu A_\lambda A_\sigma.

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