Turning off top decay

Asked by Eric Culbertson

Hello, my name is Eric Culbertson. I am an undergraduate student working under Professor Chris Neu. I would like to turn off top decay when generating ttbb at NLO. How can I do this?

I found these lines inside madspin_card.dat. Should I modify these in some way?

decay t > w+ b, w+ > all all
decay t~ > w- b~, w- > all all

Thanks
Eric

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Olivier Mattelaer (olivier-mattelaer) said :
#1

Hi Eric,

Turning off MadSpin should be enough in this case.

Cheers,

Olivier

> On Apr 13, 2016, at 02:17, Eric Culbertson <email address hidden> wrote:
>
> New question #290747 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/290747
>
> Hello, my name is Eric Culbertson. I am an undergraduate student working under Professor Chris Neu. I would like to turn off top decay when generating ttbb at NLO. How can I do this?
>
> I found these lines inside madspin_card.dat. Should I modify these in some way?
>
> decay t > w+ b, w+ > all all
> decay t~ > w- b~, w- > all all
>
> Thanks
> Eric
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

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