EWdim6 reweight makes WW generation crash.

[Rafael Lopes de Sa]

Hello,

Madgraph is crashing when I try to run with the EWdim6 model. This is the message I see on screen:

------ Begin --------

INFO: Running Reweight
launch
INFO: detected model: EWdim6. Loading...
INFO: generating the square matrix element for reweighting
INFO: generate p p > w+ w- / t h , w+ > l+ vl , w- > l- vl~ @1 ;add process p p > w+ w- j / t h , w+ > l+ vl , w- > l- vl~ @2 ;add process p p > w+ w- j j / t h , w+ > l+ vl , w- > l- vl~ @3 ;
INFO: Done 62.79
set Dim6 1 24
INFO: modify param_card information BLOCK dim6 with id (1,) set to 24.0
set Dim6 2 0
INFO: modify param_card information BLOCK dim6 with id (2,) set to 0.0
set Dim6 3 0
INFO: modify param_card information BLOCK dim6 with id (3,) set to 0.0
Do you want to edit a card (press enter to bypass editing)?
  1 / param : param_card.dat
  9 / plot : plot_card.dat
 you can also
   - enter the path to a valid card or banner.
   - use the 'set' command to modify a parameter directly.
     The set option works only for param_card and run_card.
     Type 'help set' for more information on this command.
 [0, done, 1, param, 9, plot, enter path]
The answer to the previous question is not set in your input file
Use 0 value
INFO: starts to compute weight for events with the following modification to the param_card:
INFO: set param_card dim6 2 0.0 # orig: 44.0
set param_card dim6 3 0.0 # orig: 180.0

INFO: Event nb 0 current time: 18h31
Command "launch" interrupted with error:
KeyError : ((-2, 2), (-16, -13, 14, 15))
Please report this bug on https://bugs.launchpad.net/madgraph5
More information is found in '/afs/cern.ch/work/r/rcoelhol/MadGraph5_weights/CMSSW_5_3_13_patch3/src/2.0.0beta4/wwlep_jets_space/run_01_tag_1_debug.log'.
Please attach this file to your report.
INFO: Original cross-section: 0.9628509 +- 0.014378850307 pb
INFO: Computed cross-section:

-------- End --------

I am attaching the run, param and reweight cards, as well as the debug file. Do you have any idea what is causing the crash?

Best,
Rafael (<email address hidden>)

[Olivier Mattelaer (olivier-mattelaer)]

Hi Rafael,

I tried to reproduce your problem. But I didn't suceed.
So which version did you use (branch and version number)

I've just try w+ w- and w+ w- j (so no two jet sample)
But your error message seems related to the no jet multiplicity so I doubt that it will change anything.

Cheers,

Olivier

[Rafael Lopes de Sa (rclsa)]

Hi,

First, sorry for taking so long to respond, I am traveling and could only find a time to answer emails now. I am using version 2.0.0beta4. Yes, it doesn't seem to be related to jets, but to the taus and b in the redefinition of the multiparticles l and j. When I write the processes individually, say:

generate p p > w+ w- / t h , w+ > l+ vl , w- > l- vl~ @1
add process p p > w+ w- / t h , w+ > ta+ vt , w- > l- vl~ @2
add process p p > w+ w- / t h , w+ > l+ vl , w- > ta- vt~ @3
add process p p > w+ w- / t h , w+ > ta+ vt , w- > ta- vt~ @4

then it doesn't crash. I hope this helps.

Cheers,
Rafael.

[Olivier Mattelaer (olivier-mattelaer)]

Hi Rafael,

ok I get it.
This is actually then the same that a bug that I solve during the week-end.
This should be fixed now and will be release soon.
See Bug #1258820 for details.

Cheers,

Olivier