- #1
pellman
- 684
- 5
First, I need to be able to do equations in my post but it has been a long time since I posted here. Someone please point me to a resource that gives the how-to.
If you make a infinitesimal rotation of the free-field Lagrangian for the Dirac equation, you get an extra term because the Dirac gamma matrices and the rotation generator do not commute. I'll show you when I can. So what do we make of this?
There is more to the question, and I know it has something to do with the Pauli-Lubanski pseudovector operator. Anything you can tell me about the Pauli-Lubanski pseudovector would also be appreciated.
Todd
If you make a infinitesimal rotation of the free-field Lagrangian for the Dirac equation, you get an extra term because the Dirac gamma matrices and the rotation generator do not commute. I'll show you when I can. So what do we make of this?
There is more to the question, and I know it has something to do with the Pauli-Lubanski pseudovector operator. Anything you can tell me about the Pauli-Lubanski pseudovector would also be appreciated.
Todd