0 jet/extra jet events in b jet analysis?
Hi,
I am using Madgraph5 + Pythia8 to generate data samples of 2HDM Higgs' decaying into 4 b's, and investigating the jet multiplicity distributions to look at boosted jet merging.
My toolkit currently runs MG5 and Pythia8 to produce the hepmc event file, which I then feed into MadAnalysis. When I do this and observe my multiplicity distribution, I seem to be getting a small number of events (~5% altogether) containing 0 b jets, and some with 5 or 6 b jets (despite specifying the process as pp > H, and forcing this to decay to two lighter Higgs' which each in turn decay to a b b~ pair, so there should only be up to 4 b's in the final state and hence 4 b-tagged jets?).
I have removed all cuts on the b jets for the time being, and set main.fastsim.
As a note doing the same for a SM Higgs into b b~, I see a similar number of 3/4 jet events (above the expected 2), but no 0 jet events in this case.
Thanks,
Billy
Question information
- Language:
- English Edit question
- Status:
- Answered
- Assignee:
- No assignee Edit question
- Last query:
- Last reply:
Can you help with this problem?
Provide an answer of your own, or ask Billy Ford for more information if necessary.