Set definition #286
Description
Question
Hello
I hope you're doing well
I generated the process pp → l+ l- [QCD] ( l for e and mu) using MadGraph and then analyzed it with MadAnalysis. I ran MadAnalysis in reconstruction mode using:
.\ma5 -R
I set the jet clustering algorithm to anti-kt and imported my process. Then, I defined the lepton flavors:
Define e = e+ e-
Define mu = mu+ mu-
Define l = l+ l-
After that, I applied the following cuts:
Set M(l+ l-) < 50
Set M(l+ l-) < 20
Set M(b[1] b[2]) < 100
However, when I apply these cuts on both the b-jet mass and lepton mass, the y-axis values of the two mass distribution histograms (M_lljj and M_jj) become zero.
Even when I apply the normal cuts, such as:
Set M(l+ l-) < 70
Set M(l+ l-) < 110
Set M(b[1] b[2]) ≈ 125 GeV
I still get zero values in the histograms.
Could you help me understand what might be causing this issue? Any guidance would be greatly appreciated!
Best regards,
Sarah