Difference: Brenoorzari (10 vs. 11)

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  The figure on the left side is from arXiv:1701.08780 [hep-ph].
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  The NLO processes are difficult to generate, and I'm trying to not follow the paper on this, but it seems very hard. The processes at NLO are p p > b b~ vl vl~ [QCD] and p p > b b~ vl l [QCD]. I think that the processes p p > z z [QCD] and p p > z w [QCD] with their decays specified in the madspin card, need to be added by hand, since madgraph at NLO is not giving them in the feynman diagrams. The process p p > b b~ vl vl~ QED<=4 [QCD] gave ALL the Feynman diagrams, but the software couldn't run (apparently there was some problem in the param_card.dat).
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At the meeting (06/06/2019)

I've generated the processes p p > b b~ vl vl~ and p p > b b~ vl vl~ QED<=4 at LO, and the diagrams were the same as in the NLO ("the same" reads as their compatible orders). I really need the QED<=4 part of the syntax, otherwise, diagrams with photons/Higgs will not be accounted for.
 
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I must talk to Thiago about all the problems with the BG at NLO and the signal.
 
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I'm also checking the macro, and there must be a double counting in the b-tagging part. No idea how to solve it. The efficiency of the b-tagging must be inserted in the code, but Thiago will answer this. The graphs for the dark Higgs masses of 50, 70 and 90 GeV are (with a landau fit to get the most probable value of the invariant mass of the fat jets, since it worked better than the other ones (I forgot to put the dark Higgs masses in each of them))
 
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The problem at NLO was solved using the newest version of MadGraph (2.6.5), with some changes in the files CT_interface.f. When an process is generated, at the output folder there is the following path /MG5_aMC_v2_6_5/output_folder/SubProcesses/P0_something_something/V0_something_something/CT_interface.f. Inside those files, approximately at the line 650 (can be higher or lower), two quantities that must be changed are (it's just an extra zero that must be erased) ABSP_TMP(I)=0.E0+0_16 and P_TMP(I,J)=0.E0+0_16. The zero after the letter E must be erased!! Otherwise, the check_poles test will fail.

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