KK gluon in a Randall-Sundrum model

Hi,

> This line was recommended in the past: qq~>tt~ @0 pp>(t>b(w+>qq~))(t~>b~(w->levle))/s1azg

the equivalent syntax are
define q =
define q~ =
define le =
define vle =
generate q q~ > t t~ @0
generate p p > t t~ /s1 a z g , (t > b w+, w+ > q q~), (t~ > b~ w-, w- > le vle )

Obviously you need to complete the definition above
like
define q = u d s c b

> Do you know, does MG5 support such process? What should I use to generate pp-> g(kk, mass=5 GeV)->ttbar (all decays)?

for all decay you can use the shortcut:
generate p p > t t~ /s1 a z g , (t > b w+, w+ > all all ), (t~ > b~ w-, w- > all all)
but you might want to do
define wdec = q q~ le vle
generate p p > t t~ /s1 a z g , (t > b w+, w+ > wdec wdec ), (t~ > b~ w-, w- > wdec wdec)

> It would be good to do this at NLO, but even LO should be fine

Such model is only valid for LO and I don’t think that it will be available soon at NLO (since he is not re-normalizable).

Cheers,

Olivier

On Apr 22, 2014, at 6:02 PM, Sergei Chekanov <email address hidden> wrote:

> New question #247455 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/247455
>
>
>
> Hello,
>
> I'm trying to generete KK gluon -> ttbar in a Randall-Sundrum model, but I fail to create such process. This line was recommended in the past: qq~>tt~ @0 pp>(t>b(w+>qq~))(t~>b~(w->levle))/s1azg
>
> Do you know, does MG5 support such process? What should I use to generate pp-> g(kk, mass=5 GeV)->ttbar (all decays)?
> It would be good to do this at NLO, but even LO should be fine
>
>
>
>
>
>
>
>
> --
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