How to use new model parameters file *.pars

[SiWang4phys]

Hi,

I generated a new model using FeynRules, it has three model files: *.gen, *.mod, *.pars.
Where FAPatch patched 2 models, the parameters did not get the values.
Here is part of the content in the .pars file:
`( External Parameters *)
(***********************************************)

M$ExtParams = {
aEWM1 -> 127.9,
aS -> 0.1184,
cabi -> 0.227736,
cdBAbs1x1 -> 1,
cdBAbs1x2 -> 1,
cdBAbs1x3 -> 1,
cdBAbs2x1 -> 1,
cdBAbs2x2 -> 1,
cdBAbs2x3 -> 1,
cdBAbs3x1 -> 1,
cdBAbs3x2 -> 1,
cdBAbs3x3 -> 1,
cdBPh1x1 -> 0,
cdBPh1x2 -> 0,
cdBPh1x3 -> 0,
cdBPh2x1 -> 0,
cdBPh2x2 -> 0,
cdBPh2x3 -> 0,
cdBPh3x1 -> 0,
cdBPh3x2 -> 0,
`
How do I use this pars file? How to replace all the numerical values for the variables?

Thanks,
Si

[vsht]

Patching just renames some symbols, it doesn't do anything with the model itself and it doesn't apply replacements.

I don't think that FeynArts applies the parameters automatically at all. So you need to do it by hand.

[SiWang4phys]

Thanks! That explains why I cannot find any examples.