Name: Frederik Orellana Date: 04/20/10-09:13:56 PM Z


Hello,

I guess this i a good occasion to bring PHI and perhaps FeynCalc in
general up to date with the new versions of FeynArts and Mathematica.

I’m assuming you’re trying to get the notebooks from

http://www.feyncalc.org/phi/examples/ChPT/Weak/

to run - is this correct?

Could you inform me what version of Mathematica and FeynArts you’re
using and on which platform?

Best regards,
Frederik

On 4/20/2010 5:11 PM, JimChPT wrote:
> I am using the Phi program attachment of FeynCalc to try to calculate K->PiPi decays in Chiral Perturbation Theory using FeynArts to first draw the relevant topologies.
> The problem comes when using ‘InsertFields’ to specify the particle classes because the PseudoScalar particles do not live in the standard model, as per the error message.
> I have tried generating an ‘Automatic’ model using vertices insertions but when executed the error message ‘Tag appearance in Appearance[Lori_] is generated.
>
> Any help on this matter would be greatly appreciated.