Incomplete tag_1_delphes_events.lhco file

[Adil]

Hi,

I am following this tutorial ​https://cp3.irmp.ucl.ac.be/projects/madgraph/wiki/TOPMassMeasurmentExample, when i run its 1st part to generate MADEVENT then tag_1_delphes_events.lhco file is generated in this directory adhussai/CMSSW_7_3_0/Madgraph/MG5_aMC_v2_2_3/TUTO_MW_MADEVENT/Events/run_01, but its size is very small of the oder of 45839 KB. And i found no data in it when i see its contents. I have installed Madgraph, Delphes and Pythia by following ​https://twiki.cern.ch/twiki/bin/view/CMSPublic/MadgraphTutorial?cover=print. How to over come this problem because we can't generate madweights after this problem.

Cheers,
Adil

[Adil]

This is above mentioned file

[Adil]

Sorry this tag_1_delphes_events.lhco​ file is just 45 KB.

[Pavel Demin]

Hi Adil,

Could you please check if there are any Delphes related error messages in the MadGraph log files?

Cheers,

Pavel

[Pavel Demin]

I've just tried to follow the tutorial but it looks like it's incompatible with the latest version of MadGraph (2.5.1). I get the following error message:

Command "generate_events run_01" interrupted with error:
InvalidCmd : No valid pythia8 path set.
        Please use the set command to define the path and retry.
        You can also define it in the configuration file.
        Finally, it can be installed automatically using the install command.

So, at the moment, I can't reproduce the problem.

[Pavel Demin]

With a couple of minor corrections I have the first part of the tutorial running with MadGraph 2.5.1.

Here are the corrections:

• install pythia-pgs should be replaced with install pythia8
• LHCO file should be generated with the following command:

  ./Delphes/root2lhco TUTO_MW_MADEVENT/Events/run_01/tag_1_delphes_events.root TUTO_MW_MADEVENT/Events/run_01/tag_1_delphes_events.lhco
  

[Adil]

Hi Pavel,

I am very much thankful to you. This solved my problem. You made my day.

Cheers,
Adil

[Pavel Demin]

Hi Adil,

Thanks for your feedback. I'm glad that my solution worked for you.

Closing this ticket.

Cheers,

Pavel