how to do jet veto

Hello Olivier

      Thanks for your quick reply.

      No jets with PT_j>30GeV and |eat_j|<3 mean jet with PT_j<30GeV and |eat_j|<3 ? That was what I am confused.
  In other words, I don't know how a jet veto is achieved in the MG program.

Cheers
Karo

Hi Karo,

Looks like I didn't understand correctly your question.
So please disregard my previous answer.

my answer should have looks like
 30 = ptjmax ! maximum pt for the jets
 30 = ptbmax ! maximum pt for the b
 3 = etajmin ! min rap for the jets
 3 = etabmin ! min rap for the b

Please check
1) the influence of those cuts on the matching/merging plots (you are using matching right)?
2) that the (stronger) cut that you are going to do at detector level is not dependent of the one done at parton level.

Cheers,

Olivier

Hello Olivier,

    I use Delphes to simulate the detector. I add some reconstruction level cut in delphes_card.dat. But the cut do not work. In delphes_card.dat there are only some PT_CUT cuts not other kinematics cut, for example pseudorapidity.
    If I want to do some pseudorapidity cuts for reconstruction objects, what should I do?
    Thank you very much!

All the best,
Karo

Hi Karo,

This is a Delphes question, so please contact the Delphes Team.
But I think that the solution is that you create your own analysis code for that.
You take the root output and you create your analysis script. Not Sure that Delphes can help on this point.

Cheers,

Olivier