MadGraph5_aMC@NLO

H0 decays to higgs pairs producing bb+2photon

Asked by Dante

I'm unsure whether there is a Madgraph model which can simulate a heavy CP-even scalar (e.g. H0) decaying to two lighter CP-even higgses, which decay to respectively bb and 2photon. The HiggsEFT model can I guess handle h->2photon, and the 2HDM and MSSM models can I guess handle H0->h0h0, but I am not sure if the latter models include the EFT dim-5 2-photon decays of the h0.

Question information

Language:
English Edit question
Status:
Solved
For:
MadGraph5_aMC@NLO Edit question
Assignee:
No assignee Edit question
Solved by:
Olivier Mattelaer
Solved:
Last query:
Last reply:
Revision history for this message
Best Olivier Mattelaer (olivier-mattelaer) said : 		#1

Hi,

Indeed the 2HDM model doesn't contain the h > two photon interaction.
My advise is to use FeynRules and the files present on the Feynrules website
to create your own model containing the 2hdm lagrangian and the highs effective decay.

Since you just have to ask FR to creat a model for a sum of Lagrangian this should be straightforward.

Cheers,

Olivier

On Mar 13, 2013, at 9:06 AM, Dante <email address hidden> wrote:

> New question #224165 on MadGraph5:
> https://answers.launchpad.net/madgraph5/+question/224165
>
> I'm unsure whether there is a Madgraph model which can simulate a heavy CP-even scalar (e.g. H0) decaying to two lighter CP-even higgses, which decay to respectively bb and 2photon. The HiggsEFT model can I guess handle h->2photon, and the 2HDM and MSSM models can I guess handle H0->h0h0, but I am not sure if the latter models include the EFT dim-5 2-photon decays of the h0.
>
> --
> You received this question notification because you are a member of
> MadTeam, which is an answer contact for MadGraph5.

Revision history for this message
Dante (d-r-tovey) said : 		#2

Thanks Olivier Mattelaer, that solved my question.