Elias Natanael Polanco Euán

2 Questions 1 Answers 0 Followers

Questions related from Elias Natanael Polanco Euán

How to get Noether current for pure gauge Lagrangian in this definition?

I can not get this Noether current from the Lagrangian of L = i Psi-bar gammamu(dmu+igTaAmua) Psi - 1/4 Fmu nua dagger Fmu nua The Noether current supose should yield as is showed in the picture...

01 January 1970 1,421 3 View

Why is the square momentum of a virtual photon negative?

In an exercise* I have to verfy that if qmu is the momentum carried by a gauge boson in QED vertex with an incoming particle and an outgoing particle both being on-shell, then q2 < 0. *Palash...

01 January 1970 3,128 23 View