Fix b-tagging efficiency in analysis level

[Jung Chang]

Dear Delphes team,

I had a huge event file, I hope to see different c-mistag b efficiency effect.
For I only have delphes level file, is it possible to see it in analysis level (not re-do simulation)?

Thanks a lot!

Best,
Justine

[Jung Chang]

Dear Sir,

I have notice there are DelphesROOT reader provided in Delphes.
Is this reader can read Delphes level root file? And can help to re-do the simulation?

Thanks a lot!!

Best,
Justine

[Michele Selvaggi]

Yes it can, provided that the full GenParticle collection is stored in the original ROOT file.
However there was small bug preventing this executable to run.
If you take the latest version on github it should work fine:

git clone git@github.com:delphes/delphes.git

You can run it via:

./DelphesROOT card.tcl output.root input.root