madspin fails to generate 3body decay events

Asked by Jihun Kim on 2020-03-27

Dear madgraph experts,

I'm trying to generate 3body decay events using madspin with spinmode none.
However whenever I try this I got error message and things are not going very well.

In my process heavy neutrino(n1, 9900012) decays into w l and then w > j j,
and in case of n1 mass < 80GeV, I set 3body decay in madspin card with the command n1 > mu j j with set spinmode none
and get the error.
But when n1 mass >80 GeV so I set just 2body decay in madspin card (i.e. decay n1 > w mu, w > j j), the error never occured.
Is this a bug or is there anything I can do to fix the problem?

I attach the madspin card[1], and debug log file[2] which contains full information of param card and run card.
and below are the error messages I got directly from the bash prompt.

Thank you!

INFO: Update the dependent parameter of the param_card.dat
INFO: Starting run
INFO: Compiling the code
/home/jhkim/MAschool2020/MG5_aMC_v2_7_0/HeavyMajoranaNeutrino_SSDiLepton_Schannel_NLO_MuMu_M50/bin/internal/ufomodel/particles.py
write ./param_card.dat
INFO: Using LHAPDF v6.1.6 interface for PDFs
INFO: Compiling source...
INFO: ...done, continuing with P* directories
INFO: Compiling directories...
INFO: Compiling on 8 cores
INFO: Compiling P0_udx_mupn1...
INFO: Compiling P0_dux_mumn1...
INFO: Compiling P0_uxd_mumn1...
INFO: Compiling P0_dxu_mupn1...
INFO: P0_uxd_mumn1 done.
INFO: P0_dux_mumn1 done.
INFO: P0_udx_mupn1 done.
INFO: P0_dxu_mupn1 done.
INFO: Checking test output:
INFO: P0_udx_mupn1
INFO: Result for test_ME:
INFO: Passed.
INFO: Result for test_MC:
INFO: Passed.
INFO: Result for check_poles:
INFO: Poles successfully cancel for 20 points over 20 (tolerance=1.0e-05)
INFO: P0_dux_mumn1
INFO: Result for test_ME:
INFO: Passed.
INFO: Result for test_MC:
INFO: Passed.
INFO: Result for check_poles:
INFO: Poles successfully cancel for 20 points over 20 (tolerance=1.0e-05)
INFO: P0_uxd_mumn1
INFO: Result for test_ME:
INFO: Passed.
INFO: Result for test_MC:
INFO: Passed.
INFO: Result for check_poles:
INFO: Poles successfully cancel for 20 points over 20 (tolerance=1.0e-05)
INFO: P0_dxu_mupn1
INFO: Result for test_ME:
INFO: Passed.
INFO: Result for test_MC:
INFO: Passed.
INFO: Result for check_poles:
INFO: Poles successfully cancel for 20 points over 20 (tolerance=1.0e-05)
INFO: Starting run
INFO: Using 8 cores
INFO: Cleaning previous results
INFO: Doing NLO matched to parton shower
INFO: Setting up grids
INFO: Idle: 0, Running: 4, Completed: 0 [ current time: 16h02 ]
INFO: Idle: 0, Running: 3, Completed: 1 [ 1.6s ]
INFO: Idle: 0, Running: 2, Completed: 2 [ 1.6s ]
INFO: Idle: 0, Running: 0, Completed: 4 [ 1.6s ]
INFO: Determining the number of unweighted events per channel

      Intermediate results:
      Random seed: 33
      Total cross section: 8.644e-01 +- 3.3e-03 pb
      Total abs(cross section): 9.870e-01 +- 3.4e-03 pb

INFO: Computing upper envelope
INFO: Idle: 0, Running: 4, Completed: 0 [ current time: 16h02 ]
INFO: Idle: 0, Running: 3, Completed: 1 [ 20.3s ]
INFO: Idle: 0, Running: 2, Completed: 2 [ 20.4s ]
INFO: Idle: 0, Running: 1, Completed: 3 [ 21s ]
INFO: Idle: 0, Running: 0, Completed: 4 [ 40.9s ]
INFO: Updating the number of unweighted events per channel

      Intermediate results:
      Random seed: 33
      Total cross section: 8.629e-01 +- 8.8e-04 pb
      Total abs(cross section): 9.864e-01 +- 8.5e-04 pb

INFO: Generating events
INFO: Idle: 0, Running: 0, Completed: 12 [ current time: 16h03 ]
INFO: Doing reweight
INFO: Idle: 4, Running: 8, Completed: 0 [ current time: 16h03 ]
INFO: Idle: 2, Running: 8, Completed: 2 [ 4s ]
INFO: Idle: 0, Running: 6, Completed: 6 [ 4.2s ]
INFO: Idle: 0, Running: 4, Completed: 8 [ 4.3s ]
INFO: Idle: 0, Running: 3, Completed: 9 [ 7s ]
INFO: Idle: 0, Running: 2, Completed: 10 [ 7s ]
INFO: Idle: 0, Running: 1, Completed: 11 [ 7.1s ]
INFO: Idle: 0, Running: 0, Completed: 12 [ 7.1s ]
WARNING: Failed to access python version of LHAPDF: cannot compute PDF uncertainty from the weights in the events. The weights in the LHE event files will still cover all PDF set members, but there will be no PDF uncertainty printed in the run summary.
 If the python interface to LHAPDF is available on your system, try adding its location to the PYTHONPATH environment variable and theLHAPDF library location to LD_LIBRARY_PATH (linux) or DYLD_LIBRARY_PATH (mac os x).
INFO: Collecting events
INFO:
   --------------------------------------------------------------
      Summary:
      Process p p > mu n1 [QCD]
      Run at p-p collider (6500.0 + 6500.0 GeV)
      Number of events generated: 1000
      Total cross section: 8.629e-01 +- 8.8e-04 pb
   --------------------------------------------------------------

INFO: The /home/jhkim/MAschool2020/MG5_aMC_v2_7_0/HeavyMajoranaNeutrino_SSDiLepton_Schannel_NLO_MuMu_M50/Events/run_04/events.lhe.gz file has been generated.

INFO: Events generated
reweight -from_cards
decay_events -from_cards
INFO: Running MadSpin
INFO: This functionality allows for the decay of resonances
INFO: in a .lhe file, keeping track of the spin correlation effets.
INFO: BE AWARE OF THE CURRENT LIMITATIONS:
INFO: (1) Only a succession of 2 body decay are currently allowed
************************************************************
* *
* W E L C O M E to M A D S P I N *
* *
************************************************************
INFO: Extracting the banner ...
INFO: process: p p > mu n1
INFO: options:
INFO: detected model: /home/jhkim/MAschool2020/MG5_aMC_v2_7_0/models/SM_HeavyN_NLO. Loading...
Set group_subprocesses to Auto
Note that you need to regenerate all processes
set collier to /home/jhkim/MAschool2020/MG5_aMC_v2_7_0/HEPTools/lib
set lhapdf to /home/jhkim/MAschool2020/MG5_aMC_v2_7_0/HEPTools/lhapdf6/bin/lhapdf-config
set ninja to /home/jhkim/MAschool2020/MG5_aMC_v2_7_0/HEPTools/lib
set Nevents_for_max_weigth 250 # number of events for the estimate of the max. weight
set spinmode none # Use one of the madspin special mode
set max_weight_ps_point 400 # number of PS to estimate the maximum for each event
set ms_dir ./madspingrid
set max_running_process 1
decay n1 > mu j j
launch
INFO: Will use seed 465109065
INFO: generate 1000 decay event for particle n1
P0_n1_mumudx
P0_n1_mupdux
Cleaning SubProcesses..
rm: cannot remove 'Cards': Is a directory
rm: cannot remove 'bin' : Is a directory
rm: cannot remove 'Source': Is a directory
rm: cannot remove 'SubProcesses': Is a directory
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madevent/bin/internal/Gridpack/run.sh
madevent/bin/internal/Gridpack/clean4grid
madevent/bin/internal/Gridpack/replace.pl
madevent/bin/internal/Gridpack/compile
madevent/bin/internal/Gridpack/gridrun
madevent/bin/internal/Gridpack/refine4grid
madevent/bin/internal/gen_ximprove
madevent/bin/internal/multicore
madevent/bin/internal/combine_grid.py
madevent/bin/internal/misc.py
madevent/bin/internal/syscalc_template.dat
madevent/bin/internal/run_delphes
madevent/bin/internal/sum_html.py
madevent/bin/internal/create_matching_plots.sh
madevent/bin/internal/monitor
madevent/bin/internal/systematics.py
madevent/bin/internal/combine_runs.py
madevent/bin/internal/gen_cardhtml-pl
madevent/bin/internal/addmasses_optional.py
madevent/bin/internal/run_hep2lhe
madevent/bin/internal/cluster.py
madevent/bin/internal/histograms.py
madevent/bin/internal/FO_analyse_card.py
madevent/bin/internal/gen_ximprove.py
madevent/bin/internal/shower_card.py
madevent/bin/internal/merge.pl
madevent/bin/internal/create_matching_plots.C
madevent/bin/internal/store4grid
madevent/bin/internal/run_genissud
madevent/bin/internal/ufomodel/
madevent/bin/internal/ufomodel/CT_vertices.pyo
madevent/bin/internal/ufomodel/function_library.py
madevent/bin/internal/ufomodel/SM_HeavyN_NLO.log
madevent/bin/internal/ufomodel/object_library.py
madevent/bin/internal/ufomodel/particles.pyo
madevent/bin/internal/ufomodel/write_param_card.pyo
madevent/bin/internal/ufomodel/param_card.dat
madevent/bin/internal/ufomodel/couplings.py
madevent/bin/internal/ufomodel/vertices.py
madevent/bin/internal/ufomodel/couplings.pyo
madevent/bin/internal/ufomodel/decays.pyo
madevent/bin/internal/ufomodel/propagators.pyc
madevent/bin/internal/ufomodel/propagators.pyo
madevent/bin/internal/ufomodel/coupling_orders.pyo
madevent/bin/internal/ufomodel/coupling_orders.py
madevent/bin/internal/ufomodel/dec_model.pkl
madevent/bin/internal/ufomodel/write_param_card.py
madevent/bin/internal/ufomodel/object_library.pyo
madevent/bin/internal/ufomodel/parameters.pyc
madevent/bin/internal/ufomodel/parameters.pyo
madevent/bin/internal/ufomodel/vertices.pyo
madevent/bin/internal/ufomodel/__init__.pyo
madevent/bin/internal/ufomodel/lorentz.py
madevent/bin/internal/ufomodel/particles.pyc
madevent/bin/internal/ufomodel/parameters.py
madevent/bin/internal/ufomodel/object_library.pyc
madevent/bin/internal/ufomodel/decays.py
madevent/bin/internal/ufomodel/particles.py
madevent/bin/internal/ufomodel/__init__.py
madevent/bin/internal/ufomodel/CT_couplings.pyo
madevent/bin/internal/ufomodel/lorentz.pyo
madevent/bin/internal/ufomodel/CT_couplings.py
madevent/bin/internal/ufomodel/function_library.pyo
madevent/bin/internal/ufomodel/function_library.pyc
madevent/bin/internal/ufomodel/model.pkl
madevent/bin/internal/ufomodel/CT_vertices.py
madevent/bin/internal/ufomodel/propagators.py
madevent/bin/internal/make_madevent_tar
madevent/bin/internal/madevent_interface.py
madevent/bin/internal/plot
madevent/bin/internal/files.py
madevent/bin/internal/common_run_interface.py
madevent/bin/internal/clean
madevent/bin/internal/plot_pypage-pl
madevent/bin/internal/extract_banner-pl
madevent/bin/internal/restore_data
madevent/bin/internal/__init__.py
madevent/bin/internal/me5_logging.conf
madevent/bin/internal/banner.py
madevent/bin/internal/run_combine
madevent/bin/internal/make_gridpack
madevent/bin/internal/clean_template
madevent/bin/internal/plot_tree.C
madevent/bin/internal/coloring_logging.py
madevent/bin/internal/save_load_object.py
madevent/bin/internal/plot_page-pl
madevent/bin/madevent
madevent/bin/clean4grid
madevent/bin/replace.pl
madevent/bin/cleanall
madevent/bin/compile
madevent/bin/generate_events
madevent/bin/gridrun
madevent/bin/refine4grid
madevent/Source/
madevent/Source/rw_routines.o
madevent/Source/StringCast.f
madevent/Source/discretesampler.mod
madevent/Source/nexternal.inc
madevent/Source/combine_events.f
madevent/Source/dgauss.f
madevent/Source/basecode.f
madevent/Source/DHELAS/
madevent/Source/DHELAS/FFV2_3.o
madevent/Source/DHELAS/FFV2_0.o
madevent/Source/DHELAS/FFV2_0.f
madevent/Source/DHELAS/aloha_functions.f
madevent/Source/DHELAS/.keepthisdir
madevent/Source/DHELAS/FFV2_3.f
madevent/Source/DHELAS/aloha_functions.o
madevent/Source/DHELAS/aloha_file.inc
madevent/Source/DHELAS/makefile
madevent/Source/coupl.inc
madevent/Source/basecode.o
madevent/Source/rw_events.o
madevent/Source/getissud.o
madevent/Source/PDF/
madevent/Source/PDF/PhotonFlux.f
madevent/Source/PDF/opendata.o
madevent/Source/PDF/pdf.f
madevent/Source/PDF/Ctq6Pdf.f
madevent/Source/PDF/NNPDFDriver.f
madevent/Source/PDF/Ctq6Pdf.o
madevent/Source/PDF/pdf_lhapdf.f
madevent/Source/PDF/pdf_list.txt
madevent/Source/PDF/NNPDFDriver.o
madevent/Source/PDF/pdf.o
madevent/Source/PDF/pdg2pdf_lhapdf.f
madevent/Source/PDF/pdfwrap.f
madevent/Source/PDF/pdfwrap.o
madevent/Source/PDF/pdg2pdf_lhapdf6.f
madevent/Source/PDF/opendata.f
madevent/Source/PDF/pdf_lhapdf6.cc
madevent/Source/PDF/pdg2pdf.f
madevent/Source/PDF/pdf.inc
madevent/Source/PDF/pdg2pdf.o
madevent/Source/PDF/PhotonFlux.o
madevent/Source/PDF/pdfwrap_lhapdf.f
madevent/Source/PDF/makefile
madevent/Source/BIAS/
madevent/Source/BIAS/dummy/
madevent/Source/BIAS/dummy/dummy.f
madevent/Source/BIAS/dummy/dummy.o
madevent/Source/BIAS/dummy/makefile
madevent/Source/BIAS/bias.inc
madevent/Source/BIAS/ptj_bias/
madevent/Source/BIAS/ptj_bias/ptj_bias.f
madevent/Source/BIAS/ptj_bias/makefile
madevent/Source/stringcast.mod
madevent/Source/pawgraphs.o
madevent/Source/hbook2.f
madevent/Source/StringCast.o
madevent/Source/dsample.o
madevent/Source/alfas.inc
madevent/Source/setrun_gen.f
madevent/Source/hbook.inc
madevent/Source/kin_functions.f
madevent/Source/DiscreteSampler.f
madevent/Source/alfas_functions.f
madevent/Source/setrun.f
madevent/Source/dsample.f
madevent/Source/run.inc
madevent/Source/sudgrid.inc
madevent/Source/ran1.o
madevent/Source/CERNLIB/
madevent/Source/CERNLIB/lenocc.o
madevent/Source/CERNLIB/mtlprt.f
madevent/Source/CERNLIB/lenocc.f
madevent/Source/CERNLIB/mtlset.o
madevent/Source/CERNLIB/mtlset.f
madevent/Source/CERNLIB/abend.o
madevent/Source/CERNLIB/dlsqp2.o
madevent/Source/CERNLIB/radmul.o
madevent/Source/CERNLIB/radmul.f
madevent/Source/CERNLIB/mtlprt.o
madevent/Source/CERNLIB/abend.f
madevent/Source/CERNLIB/dlsqp2.f
madevent/Source/CERNLIB/makefile
madevent/Source/psample.inc
madevent/Source/hfill.o
madevent/Source/rw_events.short.f
madevent/Source/cuts.inc
madevent/Source/hbook1.f
madevent/Source/alfas_functions_lhapdf.f
madevent/Source/maxparticles.inc
madevent/Source/gen_ximprove.o
madevent/Source/leshouche.inc
madevent/Source/invarients.f
madevent/Source/MODEL/
madevent/Source/MODEL/rw_para.f
madevent/Source/MODEL/actualize_mp_ext_params.inc
madevent/Source/MODEL/input.inc
madevent/Source/MODEL/testprog.f
madevent/Source/MODEL/coupl.inc
madevent/Source/MODEL/couplings2.f
madevent/Source/MODEL/makeinc.inc
madevent/Source/MODEL/model_functions.inc
madevent/Source/MODEL/lha_read.f
madevent/Source/MODEL/printout.f
madevent/Source/MODEL/printout.o
madevent/Source/MODEL/param_write.inc
madevent/Source/MODEL/model_functions.f
madevent/Source/MODEL/lha_read.o
madevent/Source/MODEL/couplings.o
madevent/Source/MODEL/couplings1.f
madevent/Source/MODEL/intparam_definition.inc
madevent/Source/MODEL/param_read.inc
madevent/Source/MODEL/couplings2.o
madevent/Source/MODEL/.keepme
madevent/Source/MODEL/couplings.f
madevent/Source/MODEL/coupl_write.inc
madevent/Source/MODEL/rw_para.o
madevent/Source/MODEL/model_functions.o
madevent/Source/MODEL/couplings1.o
madevent/Source/MODEL/formats.inc
madevent/Source/MODEL/makefile
madevent/Source/make_opts
madevent/Source/open_file.f
madevent/Source/ranmar.o
madevent/Source/setrun.o
madevent/Source/readgrid.f
madevent/Source/lhe_event_infos.inc
madevent/Source/DiscreteSampler.o
madevent/Source/maxconfigs.inc
madevent/Source/ranmar.f
madevent/Source/invarients.o
madevent/Source/transpole.o
madevent/Source/run_config.inc
madevent/Source/genps.inc
madevent/Source/pawgraphs.f
madevent/Source/hfill.f
madevent/Source/run_card.inc
madevent/Source/banner_header.txt
madevent/Source/dgauss.o
madevent/Source/readgrid.o
madevent/Source/.make_opts
madevent/Source/gen_ximprove.f
madevent/Source/pdf.inc
madevent/Source/run_printout.f
madevent/Source/hcurve.f
madevent/Source/htuple.f
madevent/Source/ran1.f
madevent/Source/getissud.f
madevent/Source/open_file.o
madevent/Source/rw_routines.f
madevent/Source/transpole.f
madevent/Source/alfas_functions.o
madevent/Source/param_card.inc
madevent/Source/kin_functions.o
madevent/Source/maxamps.inc
madevent/Source/makefile
madevent/Source/rw_events.f
madevent/Source/run_printout.o
run.sh
Now generating 1200 events with random seed None and granularity 1
WRITE GRIDCARD /home/jhkim/MAschool2020/MG5_aMC_v2_7_0/madspingrid/decay_9900012_0/madevent
Traceback (most recent call last):
  File "./madevent/bin/gridrun", line 86, in <module>
    cmd_line = cmd_interface.GridPackCmd(me_dir=root_path, nb_event=args[0], seed=args[1], gran=args[2])
  File "/home/jhkim/MAschool2020/MG5_aMC_v2_7_0/madspingrid/decay_9900012_0/madevent/bin/internal/madevent_interface.py", line 6383, in __init__
    self.write_gridcard(nb_event, seed, gran) # set readonly on True if needed
  File "/home/jhkim/MAschool2020/MG5_aMC_v2_7_0/madspingrid/decay_9900012_0/madevent/bin/internal/madevent_interface.py", line 6434, in write_gridcard
    gridpackcard['gseed'] = seed
  File "/home/jhkim/MAschool2020/MG5_aMC_v2_7_0/madspingrid/decay_9900012_0/madevent/bin/internal/banner.py", line 1210, in __setitem__
    value = self.format_variable(value, targettype, name=name)
  File "/home/jhkim/MAschool2020/MG5_aMC_v2_7_0/madspingrid/decay_9900012_0/madevent/bin/internal/banner.py", line 1376, in format_variable
    raise InvalidCmd, "%s can not be mapped to an integer" % value
internal.InvalidCmd: None can not be mapped to an integer
mv: cannot stat './Events/GridRun_None/unweighted_events.lhe.gz': No such file or directory
write ./events.lhe.gz
Command "launch auto " interrupted with error:
IOError : [Errno 2] No such file or directory: '/home/jhkim/MAschool2020/MG5_aMC_v2_7_0/madspingrid/decay_9900012_0/events.lhe.gz'
Please report this bug on https://bugs.launchpad.net/mg5amcnlo
More information is found in '/home/jhkim/MAschool2020/MG5_aMC_v2_7_0/HeavyMajoranaNeutrino_SSDiLepton_Schannel_NLO_MuMu_M50/run_04_tag_1_debug.log'.
Please attach this file to your report.
INFO:
quit

[1] madspin card : https://drive.google.com/open?id=1AwNnsHv2sBDtH1BM0jrG5YgzqvRaVbm3
[2] debug log : https://drive.google.com/open?id=1q-KX1twY5l8waQk_ApBeKT_tZJ-xc-y8

Question information

Language:
English Edit question
Status:
Open
For:
MadGraph5_aMC@NLO Edit question
Assignee:
No assignee Edit question
Last query:
2020-03-27
Last reply:
Richard Ruiz (rruiz) said : #1

Hi,

For three-body decays of narrow width particles, one should use the option
set spinmode onshell

Some details are documented in https://arxiv.org/abs/1610.08985

best,
richard

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