ttbar production [QCD]
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
MadGraph5_aMC@NLO |
Invalid
|
Undecided
|
Rikkert Frederix |
Bug Description
Hi everybody,
I'm using MG5_aMC_v2_2_1and I’m trying to validate the FxFx merging in aMC@NLO, studying the tt~ + jets production.
I’ve generated my event sample in the following way:
- import model sm-no_bmass
- generate p p > t t~ [QCD] @0
- add process p p > t t~ j [QCD] @1
- add process p p > t t~ j j [QCD] @2
- import model loop_sm-no_bmass
- output ttbar_QCD
- launch (I’ve already studied the W + jets process, so I’ve set, in both the run_card.dat and in the shower_card.dat, the ‘correct values’ for FxFx merging flags (e.g. ickkw = 3) and I’ve changed the default set of PDF —> I’m working with lhapdf 260000 [NNPDF-3.0].
After compiling the P* directories, the program stopped, getting this error:
/afs/cern.
WARNING: program /afs/cern.
WARNING: Last 15 lines of logfile
/afs/cern.
INFO: MadLoop read these parameters from ../MadLoop5_
INFO: remove job currently running
/afs/cern.
INFO: remove job currently running
Has anyone ever seen an error like that?
Thanks,
Francesco
Changed in mg5amcnlo: | |
assignee: | nobody → Rikkert Frederix (frederix) |
Changed in mg5amcnlo: | |
status: | New → Incomplete |
Changed in mg5amcnlo: | |
status: | Incomplete → Invalid |
Dear Francesco,
I cannot reproduce your problem. Could you go to the
/afs/cern. ch/work/ f/fgiuli/ public/ MG5_aMC_ v2_2_1/ ttbar_QCD/ SubProcesses/ P2_gux_ ttxuxg/ GF3
directory and execute
../madevent_mintMC <input_app.txt
by hand and let me know if there is the same error?
Best regards,
Rikkert
P.S. If you use a model without a b quark mass, you should include the b quark in the definition of the 'p' and the 'j'. Did you do that?