Name: my phuong le (email_not_shown)
Date: 10/26/06-03:17:03 AM Z


Hi,
If there is a LeviCivita symbol in my Lagrangian, but it's all contracted, (NO explicit index), do I need do anything special to take care of it? Is it true that I only need to worry about upper/lower index if I use LeviCivita symbol by explicit index? When I try to get the Feynman Rule for what I am doing, I unexpectedly get zeros all the time!

Thanks,
My Phuong



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