standalone matrix element
Hi Madgraph experts:
I am trying to generate an ME standalone python library.
The setup: (1.1) Madgraph 2.9.3
I use the following command to generate this library:
[$]python ./bin/mg5_aMC
and in MG5_aMC:
set max_npoint_
import model /cvmfs/
#or you could find the model here: https:/
define p = g u c d s b u~ c~ d~ s~ b~
define j = g u c d s b u~ c~ d~ s~ b~
define l+ = e+ mu+
define l- = e- mu-
NORMALLY: if I generate the events, I will use:
generate g g > l+ l- l+ l- / g QCD=2 QED=4 NP=2 NP^2==2 [noborn=QCD]
output -f
There is no problem with the above commands.
BUT for generating the standalone python package:
The [noborn=QCD] probably is not suitable as it doesn't allow me to use: output standalone gg4l_ctpSM_
Or [virt=QCD] is still not correct as I want to generate loop-level diagrams only (no born diagrams).
So I change the commands to:
generate g g > l+ l- l+ l- / g QCD=2 QED=4 NP=2 NP^2==2 [sqrvirt=QCD] #(I am not sure whether this is correct or not)
output standalone gg4l_ctpSM_
after I run: launch -f
I got:
*******
MG5_aMC>launch -f
Initializing process gg > epemmupmum.
Error detected in "launch -f"
write debug file MG5_debug
If you need help with this issue please contact us on https:/
str : A compilation Error occurs when trying to compile /home/weiy/
The compilation fails with the following output message:
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
gfortran -w -fPIC -ffixed-
make: *** No rule to make target `../../
Please try to fix this compilations issue and retry.
Help might be found at https:/
If you think that this is a bug, you can report this at https:/
MG5_aMC>
*******
I am not sure whether the: generate g g > l+ l- l+ l- / g QCD=2 QED=4 NP=2 NP^2==2 [sqrvirt=QCD]
is correct or not to generate the standalone library.
Could you please help me with this? Really appreciated!
Best,
Yingjie
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- Yingjie Wei
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