ggWW without Higgs, but with interference

Hi,

> |box|^2 + interference + |h|^2

Well you also have Z diagrams, so your separation do not holds.

We do not have a syntax to have only the box but you can do this
generate g g > w+ w- / Z h [QCD]
for the diagram with the h only you do have the following syntax:
generate g g > h > w+ w- [QCD]

For the interference only term this is more complicated since you need to re-generated a dedicated UFO (NLO) where all the coupling associated to the Higgs are not tagged as QED but as HIGGS (you can use FR for that). Then you can do
generate g g > w+ w- HIGGS^2==2 [QCD]

But because of the Z, you also need the Z only and some additional interference to make it work.

Cheers,

Olivier

> On Nov 25, 2015, at 01:26, Rafael Lopes de Sa <email address hidden> wrote:
>
> New question #275415 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/275415
>
> Hi,
>
> I am trying to use this recent "loop-induced" processes. Specifically, I am generating gg -> WW events. This process will be, schematically, something like:
>
> |box|^2 + interference + |h|^2
>
> I believe that if I use the "$ h" notation, the two rightmost terms will be dropped. Is this correct? Is there a way of generating first and the second term?
>
> Thanks,
> -- Rafael.
>
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Hi Olivier,

In my problem, the Z would be included in the "box" part (I know, bad name). So I guess that tagging the HIGGS vertices differently should do the trick.

Thanks a lot for the idea,
-- Rafael.