Auto width of a user defined particle
Hi,
I have a user defined model where I am trying to automatically calculate the width of a new particle. I have set "Auto" for width of the new particle in the param card and give command ./bin/generate_
It starts writing a new param_card.dat , but then comes to new particle width and stops. When I check the card it writes zero for the width of the particle. In the terminal it throws messages that read :
set automatic_
compute_widths 9000006 --precision_
Please note that the automatic computation of the width is
only valid in narrow-width approximation and at tree-level.
INFO: Get two body decay from FeynRules formula
Results written to /data2/
INFO: get decay diagram for xchi
Vertexlist of this model has not been searched.
Found 3 stable particles
Command "generate_events " interrupted in sub-command:
"set max_npoint_
NameError : name 'myGGH' is not defined
Please report this bug on https:/
More information is found in 'MG5_debug'.
Please attach this file to your report.
quit
I found somewhat relevant discussion on the issue at https:/
So my question is whether this is a Feynrules problems like on the link above of something more? Any ideas/hints?
Feynrules version used for model file generation is newer than the one in the link above.
Thanks,
Aniket
Here is some more info that might be useful:
I see 2 errors in above error messages namely:
1) "set max_npoint_
2) NameError : name 'myGGH' is not defined
I believe 0 is correct value in the first line as there are mo loops involved in the decay
For the second error I was wondering if something is wrong with gluon fusion. Following is the output of MG5_debug
set group_subprocesses Auto
set ignore_
set loop_optimized_
set low_mem_
set loop_color_flows False
set gauge unitary
set complex_mass_scheme False
set max_npoint_
Traceback (most recent call last):
File "/data2/
return self.onecmd_
File "/data2/
return func(arg, **opt)
File "/data2/
switch_mode = self.ask_
File "/data2/
self.
File "/data2/
self.ask, first_cmd=
File "/data2/
cards=cards, mode=mode, **opt)
File "/data2/
fct=
File "/data2/
result = fct(question)
File "/data2/
return self.cmdloop()
File "/data2/
super(
File "/data2/
stop = self.postcmd(stop, line)
File "/data2/
self.
File "/data2/
self.
File "/data2/
return self.mother_
File "/data2/
cmd.
File "/data2/
stop = Cmd.onecmd_
File "/data2/
return func(arg, **opt)
File "/data2/
return self.cmd.
File "/data2/
), skip_2body=
File "/data2/
return self.cmd.
File "/data2/
model.
File "/data2/
part.
File "/data2/
self[
File "/data2/
self.
File "/data2/
lor_value = eval(new_structure % q_dict_lor)
File "<string>", line 1, in <module>
NameError: name 'myGGH' is not defined
ignore_
loop_
low_mem_
max_npoint_
.....etc etc
Let me know if more information is required
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