Name: (email_not_shown)
Date: 07/01/01-04:47:41 PM Z

As far as I can see there's nothing wrong with DiracOrder.

What's happening is just that (see the contraction of a momentum frou-vector and the corresponding polarization vector is automatically set to zero.

That is, transversality is assumed. If you don't want that, use some other name than Polarization[...] for the polarization vector.

Hope this helps.

Frederik Orellana

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