I'm not working on BSM physics myself, but some people are using
FeynCalc for similar tasks:
Am 30.08.2016 um 15:51 schrieb Abhishek Bachchan:
> Hi there,
> I've just began a project, going to calculate the decay rate of a new effective BSM new lagrangian. Can we implement this new lagrangian to FeynCalc and calculate the decay rate?
> beside the manual, I took a look at some other materials on the web and I didn't found something to help me.
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