gg into 4 leptons
Hi,
I'm trying to simulate that process:
import model SMEFTatNLO_
generate g g > mu- vm~ e+ ve [noborn=QCD] QED=4 NP=0 @1
add process g g > mu+ vm e- ve~ [noborn=QCD] QED=4 NP=0 @2
output myfolder
launch myfolder
Everything goes fine, except for this warning:
^[[1;34mWARNING: Channel G1//data/
The simulation goes on but then I got this error:
INFO: Refine results to 100000
INFO: Generating 100000.0 unweighted events.
INFO: Effective Luminosity 1491346.36418 pb^-1
INFO: need to improve 2 channels
Current estimate of cross-section: 0.077110859531 +- 0.000209939353442
INFO: Idle: 0, Running: 2, Completed: 0 [ current time: 21h21 ]
INFO: Idle: 1, Running: 1, Completed: 1 [ 3s ]
^[[1;34mWARNING: float division by zero ^[[0m
^[[1;34mWARNING: float division by zero ^[[0m
INFO: Idle: 0, Running: 0, Completed: 4 [ 3.1s ]
float division by zero
Cluster Error detected. Do you want to clean the queue? ("c"=continue the run anyway) [^[[4my^[[0m, n, c]
^[[1mThe answer to the previous question is not set in your input file^[[0m
^[[1mUse y value^[[0m
The log file reports:
Traceback (most recent call last):
File "/data/
return self.onecmd_
File "/data/
return func(arg, **opt)
File "/data/
self.
File "/data/
original_
File "/data/
self.
File "/data/
stop = Cmd.onecmd_
File "/data/
return func(arg, **opt)
File "/data/
html=True)
File "/data/
self.
File "/data/
returncode = exe(*arg, **opt)
File "/data/
n_target_
ZeroDivisionError: float division by zero
I'm running on multicore mode on a desktop.
What can I do to fix this?
Thank you for your help,
Giacomo
Question information
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- Last query:
- 2020-05-19
- Last reply:
- 2020-05-20
You should have more precise information in
/data/theorie/
directory.
Without looking at such log file, it seems to be either a numerical issue or a pure model issue
Cheers,
Olivier
Giacomo Magni (gmagni) said : | #2 |
Hi Olivier,
yes something was wrong in /SubProcesses/
I attached you the link to the log file.
https:/
The result.dat file reports:
0.23007E-02 0.19861E-03 0.19861E-03 2 113861683 9 2 0.86930E+03 0.39260E+05 0.23007E-02 0.0 0.0 0
And the input_app.txt:
1000 1 1 !Number of events and max and min iterations
0.02 !Accuracy
-2 !Grid Adjustment 0=none, 2=adjust
1 !Suppress Amplitude 1=yes
1 !Helicity Sum/event 0=exact
1
Thank you very much for your help.
Best,
Giacomo
G1 seems fine actually.
By the way which technical cut did you use to kill the 0 pt for the W in this channel?
If you do not put cut on the PT of the W this is likely divergent.
This might be related to your issue actually.
Cheers,
Olivier
Giacomo Magni (gmagni) said : | #4 |
Hi,
so that may be the issue, I set only:
ptl 10
etal 2.5
Best,
Giacomo
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