Hoi Alessio,
> The true KL energy (for true KL).
> I'm looping against neutral candidates (MC). If I find a true KL (idMc ==
> 130) I'm getting the fourmomentum and then plotting the energy.
In the lab or cms?
> I'm not applying constraint to the MC particle to be reconstructed in the
> EMC: I'll add that constraint and redo the plots (btw: I do not have the
> information in the MC block... how can I impose that constraint on true
> KL???).
An acceptance cut? The usual photon cuts are for this purpose:
acc = ((thetaGam[i] > 0.410) && (thetaGam[i] < 2.54));
> No constraint on EMC recostruction is applyed.
> So I need to plot the ecalGam energy? But how can I do that selecting true
> KL if the MC association is broken?
Are you sure the MC assoc is broken? For me the following does not
return nothing:
h1->Draw("ecalGam", "ecalGam>0 && idGam==130")
Maybe the matching is not perfect, that is something to be looked
into.
> I can: a) Plot the true energy for true KL b) Plot reco/ecal energy
> for KL that have the highest likelihood to be a kaon
Try to require idGam==130 for a match.
Cheers,
--U.
