Re: D-dimensional OneLoop.

Name: Rolf Mertig (email_not_shown)
Date: 08/20/01-10:13:32 PM Z


Hi,
you can try to either use OneLoopSimplify (though it will take longer) or
play with the option $LimitTo4 (or similiar).
You may also send one typical amplitude but I won't promise I have time to
look at it ...

Rolf Mertig

P.s.: I am no professor. I was a postdoc and left physics research 5 years
ago.

On Monday 20 August 2001 08:28 pm, you wrote:
> Dear Professor Mertig
>
> I've been using FeynCalc4.0.2 to calculate one loop
> corrections to strong interaction processes involving QCD and SUSY-QCD
> spectrum and I've chosen to work with dimensional regularization.
>
> However I have found some problems with the PaVeReduce
> routine in D dimensions. Even after set the PaVeReduce options, choosing
> Dimension -> D, the output always comes in 4 dimensions.
>
> Besides, I've realized the OneLoop function returns all
> D-dimensional objects like four vectors, dirac matrices, dirac slashes,
> etc in 4 dimensions.
>
> Could you tell me how to set the right options in such way
> that everything may be calculated in D-dimensions?
>
>
> Thank you very much for your attention,
>
>
>
> Alexandre Alves.



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