MadGraph5_aMC@NLO

NLO "launch auto " error

Asked by Feyza Baspehlivan

Hello,
We constructed our model in FeynRules and implemented it to MadGraph but it keeps giving the following error for NLO process

> generate p p > vle+ vle- QED^2<=4 QCD^2<=4 [QCD]

the only changes I do:

> order=NLO
> fixed_order=ON

shower, madspin, reweight, and madanalysis are OFF. In run_card pdlabel is nn23nlo.

And its output is:

INFO: Update the dependent parameter of the param_card.dat
WARNING: update the strong coupling value (alpha_s) to the value from the pdf selected: 0.119
INFO: Starting run
INFO: Compiling the code
INFO: Using built-in libraries for PDFs
INFO: Compiling source...
INFO: ...done, continuing with P* directories
INFO: Compiling directories...
INFO: Compiling on 4 cores
INFO: Compiling P0_uux_vlemvlep...
INFO: Compiling P0_ccx_vlemvlep...
INFO: Compiling P0_ddx_vlemvlep...
INFO: Compiling P0_ssx_vlemvlep...
INFO: P0_ddx_vlemvlep done.
INFO: Compiling P0_uxu_vlemvlep...
INFO: P0_uux_vlemvlep done.
INFO: Compiling P0_cxc_vlemvlep...
INFO: P0_ccx_vlemvlep done.
INFO: Compiling P0_dxd_vlemvlep...
INFO: P0_ssx_vlemvlep done.
INFO: Compiling P0_sxs_vlemvlep...
INFO: P0_cxc_vlemvlep done.
INFO: P0_uxu_vlemvlep done.
INFO: P0_dxd_vlemvlep done.
INFO: P0_sxs_vlemvlep done.
INFO: Checking test output:
INFO: P0_uux_vlemvlep
INFO: Result for test_ME:
INFO: Output of the failing test:
 Enter 0 to compute MC/MC(limit)
       1 to compute MC/ME(limit)
       2 to compute ME/ME(limit)
 Enter xi_i, y_ij to be used in coll/soft tests
  Enter -2 to generate them randomly
 Enter number of tests for soft and collinear limits
 SPLIT TYPE USED: T F
 A PDF is used, so alpha_s(MZ) is going to be modified
 Old value of alpha_s from param_card: 0.11900000000000002
  ****************************************

       NNPDFDriver version 1.0.3
   Grid: NNPDF23nlo_as_0119_qed_mem0.grid
  ****************************************
 New value of alpha_s from PDF nn23nlo: 0.11899999999999999
 Give FKS configuration number ("0" loops over all)

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 1
 FKS partons are: i= 5 j= 1
 with PDGs: i= 21 j= 2

 Enter graph number (iconfig), '0' loops over all graphs
Using random seed offsets: 1 , 1 , 0
  with seed 32
 Ranmar initialization seeds 10730 9407
tau_min 1 1 : 0.10000E+04 -- 0.10000E+04
tau_min 2 1 : 0.10000E+04 -- 0.10000E+04
tau_min 3 1 : 0.10000E+04 -- 0.10000E+04
tau_min 4 1 : 0.10000E+04 -- 0.10000E+04
 BORN: keeping split order 1
 counterterm S.O 1 QCD
 BORN: keeping split order 1
 counterterm S.O 2 QED
 BORN: not keeping split order 1

 REAL 1: keeping split order 1
 Soft tests done for (Born) config 1
 Failures: 2 0 99
Sum of all orders: Soft test 1 PASSED. Fraction of failures: 0.02
Split-order 2: QCD: 2; QED: 4; Soft test 1 FAILED. Fraction of failures: 0.99

 No collinear test for massive j_fks

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 2
 FKS partons are: i= 5 j= 2
 with PDGs: i= 21 j= -2

 Enter graph number (iconfig), '0' loops over all graphs

 Soft tests done for (Born) config 1
 Failures: 2 0 100
Sum of all orders: Soft test 2 PASSED. Fraction of failures: 0.02
Split-order 2: QCD: 2; QED: 4; Soft test 2 FAILED. Fraction of failures: 1.00

 No collinear test for massive j_fks

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 3
 FKS partons are: i= 5 j= 1
 with PDGs: i= -2 j= 21

 Enter graph number (iconfig), '0' loops over all graphs

 REAL 2: keeping split order 1
 Soft tests done for (Born) config 1
 Failures: 1 0 1
Sum of all orders: Soft test 3 PASSED. Fraction of failures: 0.01
Split-order 2: QCD: 2; QED: 4; Soft test 3 PASSED. Fraction of failures: 0.01

 No collinear test for massive j_fks

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 4
 FKS partons are: i= 5 j= 2
 with PDGs: i= 2 j= 21

 Enter graph number (iconfig), '0' loops over all graphs

 REAL 3: keeping split order 1
 Soft tests done for (Born) config 1
 Failures: 0 0 0
Sum of all orders: Soft test 4 PASSED. Fraction of failures: 0.00
Split-order 2: QCD: 2; QED: 4; Soft test 4 PASSED. Fraction of failures: 0.00

 No collinear test for massive j_fks
Error detected in "launch auto "
write debug file /home/feyza/Madgraph/sNLO/run_01_tag_1_debug.log
If you need help with this issue, please, contact us on https://answers.launchpad.net/mg5amcnlo
str : Some tests failed, run cannot continue. Please search on https://answers.launchpad.net/mg5amcnlo for more information, and in case there is none, report the problem there.
quit
INFO:

Where can this problem arise from? If you can help I will be glad.

Thank you in advance

Question information

Language:
English Edit question
Status:
Solved
For:
MadGraph5_aMC@NLO Edit question
Assignee:
marco zaro Edit question
Solved by:
marco zaro
Solved:
Last query:
Last reply:
Revision history for this message
marco zaro (marco-zaro) said : 		#1

Hi,
can you provide more information about the model?
in particular I see
 No collinear test for massive j_fks
but these should be initial quarks.
Can you try to add a restriction card with zero masses for all the light quarks?

Thanks

Marco

Revision history for this message
Feyza Baspehlivan (feyzabaspehl) said : 		#2

Hi,

Thank you for your attention. The model includes heavy lepton interactions with the SM leptons and gauge bosons. The new heavy particles do not have interactions with quarks, if this is a required information. I want to ask that do you mean u, d, c, s quarks by light quarks? If so, is it a problem to take electron and muon with their masses and only taking quark masses and yukawa couplings 0 in FeynRules as below?

M$Restrictions = {
          MU -> 0,
   ymup->0,
   yup->0,
          MD -> 0,
   ymdo->0,
   ydo->0,
          MS -> 0,
   yms->0,
   ys->0,
          MC -> 0,
          ymc-> 0,
          yc -> 0
}

Best

Feyza

Revision history for this message
Best marco zaro (marco-zaro) said : 		#3

Hi Feyza,
you should take quark masses (and possibly yukawas) to zero.
You can do it etiher in FR, or by creating a restriction card in the model folder you have already generated.
Let me know if it works

Best,

Marco

> On 17 Apr 2023, at 22:40, Feyza Baspehlivan <email address hidden> wrote:
>
> Question #706219 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/706219
>
> Feyza Baspehlivan posted a new comment:
> Hi,
>
> Thank you for your attention. The model includes heavy lepton
> interactions with the SM leptons and gauge bosons. The new heavy
> particles do not have interactions with quarks, if this is a required
> information. I want to ask that do you mean u, d, c, s quarks by light
> quarks? If so, is it a problem to take electron and muon with their
> masses and only taking quark masses and yukawa couplings 0 in FeynRules
> as below?
>
> M$Restrictions = {
> MU -> 0,
> ymup->0,
> yup->0,
> MD -> 0,
> ymdo->0,
> ydo->0,
> MS -> 0,
> yms->0,
> ys->0,
> MC -> 0,
> ymc-> 0,
> yc -> 0
> }
>
> Best
>
> Feyza
>
> --
> You received this question notification because you are assigned to this
> question.

Revision history for this message
Feyza Baspehlivan (feyzabaspehl) said (last edit ): 		#4

Hi,

The problem is solved, thank you so much.
What is the reason behind this, why NLO calculations requires 0 mass quarks? I will be glad if you could explain.

Best

Feyza

Revision history for this message
Feyza Baspehlivan (feyzabaspehl) said : 		#5