Hello,(adsbygoogle = window.adsbygoogle || []).push({});

how can i prove by "fierzing" twice that

(\bar{\lambda} \gamma_5 \lambda) \lambda = - (\bar{\lambda} \lambda) (\gamma_5 \lambda)?

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Proof of a Fierz identity

**Physics Forums | Science Articles, Homework Help, Discussion**