MadGraph5_aMC@NLO

Generating polarized particles

Asked by coolpankaj007

Hi,

I went through this FAQ: https://answers.launchpad.net/mg5amcnlo/+faq/2243 which tells about generating events for polarized particles. My question is following:

I want to generate p p > t_L W- and then t_L decays further leptonically. I could generate up to (p p > t_L W-) by modifying the matrix1.f file in the subprocess folder. How do I further decay this polarized top using Madgraph?

Thanks
Pankaj

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

Dear Pankaj,

We do not provide package for such crude approximation of the decay.
In old version of MG (1.5.x) when we did not have a precise way to handle the decay (like we have now with MadSpin)
We had a package which handle that kind of decay, but we do not support it anymore.

Cheers,

Olivier

On 16 Jul 2015, at 09:26, coolpankaj007 <email address hidden> wrote:

> New question #269283 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/269283
>
> Hi,
>
> I went through this FAQ: https://answers.launchpad.net/mg5amcnlo/+faq/2243 which tells about generating events for polarized particles. My question is following:
>
> I want to generate p p > t_L W- and then t_L decays further leptonically. I could generate up to (p p > t_L W-) by modifying the matrix1.f file in the subprocess folder. How do I further decay this polarized top using Madgraph?
>
> Thanks
> Pankaj
>
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

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