Using DECAY to generate t->Wq with q=d,s

Hi Pedro,

In fact the best way to do this is the following:
import model sm-ckm
define quark = d s
define quark~ = d~ s~
generate p p > t t~ j j j, t > quark W+, t~ > quark~ w-

(if you want to decay the W you can do:
generate p p > t t~ j j j, (t > quark W+, W+ > j j), (t~ > quark~ w-, w- > e- ve)

By doing this this way you keep full spin correlation.

Cheers,

Olivier

On Oct 8, 2012, at 12:30 PM, PedroSilva <email address hidden> wrote:

> New question #210681 on MadGraph5:
> https://answers.launchpad.net/madgraph5/+question/210681
>
> Dear all,
> I'm not sure if this is the correct place to ask but here it goes.
> I'm interested in generating t->Wq decays with q=d,s insted of b using DECAY
> after I have generated ttbar+N jets with Madgraph.
> I'm also interested in decaying separately t and t~ but that feature is already present in the DECAY package.
> I would like to know if this is currently possible with DECAY.
> A related question is : how is the b-quark mass handled in DECAY?
> Many thanks in advance for all your help,
> Pedro
>
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