Advanced Quantum Mechanics Schwabl · Problem 6.9

The Coulomb Potential

Physics — Quantum Mechanics · dirac-bilinears-transformation

Problem

Show that ψˉ(x)γ5ψ(x)\bar{\psi}(x)\gamma_5\psi(x) is a pseudoscalar, ψˉ(x)γ5γμψ(x)\bar{\psi}(x)\gamma_5\gamma^\mu\psi(x) a pseudovector, and ψˉ(x)σμνψ(x)\bar{\psi}(x)\sigma^{\mu\nu}\psi(x) a tensor.

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