Inquire about DelphesLHEF and error after the events processed

[Abdualazem Mohammed]

Dear All,

I'm using DelphesLHEF to convert LHE file that is generated using Powheg Box. Because I want to compare two distributions at Parton and Pythia level. I'm not sure how DelphesLHEF does that, so could someone explain this? The second thing is after the last event in the LHE file I get the following:

** Reading /afs/cern.ch/user/a/amoohamm/CERNBOX/POWHEG-BOX-V2/LHEF/pwgevents_run1.lhe
** [################################################################] (100.00%)
** Exiting...
Error in <TList::Clear>: A list is accessing an object (0x30979c0) already deleted (list name = TList)

However, I got the number of events that I generated. So all events have been processed. I attached a small LHE file here. Thanks a lot.

Cheers,
Abdualazem.

[Abdualazem Mohammed]

LHE file with 10 events generated using Powheg Box v2 for ttbar process

[Pavel Demin]

DelphesLHEF reads the LHE files using the DelphesLHEFReader class:

classes/DelphesLHEFReader.cc​

The TList error is already fixed in our git repository. Here is a link to the fix:

2fedc726ee59739a21376817ca09ac05849e2f12/git

Since the error appears after the output file is already written to the disk, it's safe to use Delphes without applying this fix.

[Abdualazem Mohammed]

Hi Pavel,

Thanks for the prompt reply. I just modified the "modules/Delphes.cc" according to the lines you sent, and it works fine. The TList error disappeared.

Cheers,
Abdualazem.