b quark decay
Asked by
Michele
Hi,
I'm trying to force a semileptonic b decay from t t~ decay in MG5 1.4.1.
In other words I would like to generate a process like this
generate p p > t t~ , t > W+ b, (t~ > b~ W-, W- > j j, (b~ > j W+ > j mu+ vm))
but I get a message like this:
InvalidCmd : No amplitudes generated from process Process: b~ > g u c d s u~ c~ d~ s~ w+> g/u/c/d/
Could you help me please?
Thank you.
Michele.
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