Larger cross section if final states decay

Asked by Fran Arco on 2021-04-09

I am studing the process e+ e- > h h vl vl~ in the SM and the same process but with the decay of the final Higgs bosons to b bbar. Surprisingly, madgraph says that the cross section with both h going to b bar is larger than the production without decay. For example, for sqrt(s)=1000GeV I obtain:

(1) 9.8e-5 pb for e+ e- > h h vl vl~
(2) 6.6e-5 pb for e+ e- > h h vl vl~, h > b b~

It makes no sense and I have no clue why this happens!

Thanks in advance for the help.

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Fran Arco (franarco) said : #1

Sorry, my question makes no sense and everything is fine... I don't know how to remove the question, could you do it for me. Sorry for the inconvenience.