**Next message:**V. Shtabovenko: "Re: Gamma5 in D dimensions"**Previous message:**Adrian: "Re: Gamma5 in D dimensions"**Next in thread:**V. Shtabovenko: "Re: Gamma5 in D dimensions"**Reply:**V. Shtabovenko: "Re: Gamma5 in D dimensions"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Mail actions:**[ respond to this message ] [ mail a new topic ]

Oh, sorry!, right. Thank you very much.

So the two problems are solved: I can compute both ampW1 and the

loop of ampF1.

But with all these changes, I now face 2 new problems! The first

of them shows up when I compute ampW1. Here, I get some objects

(at least metric tensors and 4-momenta) both with and without

hat. What do they mean? How I am supposed to deal with them?

The second problem has to do with the following. As I am working in

dimensional regularization, I will have to make D -> 4 - epsilon,

(and I will want to obtain, on the one hand, the non-divergent term

coming from the product between epsilon and the PaVe functions, and to

make, on the other hand, epsilon -> 0 in the end; by the way, I do

all of this manually, but maybe there is some automatic function to

help me with these steps). But as I make D -> 4 - epsilon, some funny

objects show up: basically, gamma matrices and 4-momenta with

subscript "4-epsilon" (or just "epsilon"). I have the same questions:

what do they mean? How I am supposed to deal with them?

Thanks again,

Duarte

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