ATLAS Run 2 analysis:

Historical (Run 1, Snowmass)

Background processes/generation (14 TeV)

Process

Madgraph LO (CTEQ6L1)
+ Pythia 6 MLM matching

aMC@NLO
(CT10)

ttH
(?=mt+mH/2)

+ up to 1 parton: 497 ± 3 fb

441 ± 3 fb

tt
(?=mt)

+ up to 3 partons: 665 ± 6 pb

859 ± 2 pb

ttWW
Higgs diagrams excluded
(?=mt+mW)

+ up to 1 parton: 10.41 ± 0.06 fb

 

ttZ
(?=mt+mZ/2)

 

1097 ± 3 fb

ttW
(?=mt+mW/2)

+ up to 3 partons: 754 ± 6 fb

741 ± 4 fb

ttbb (+ up to 2 jets)

 

 

ttll

+ up to 2 partons: 74.5 ± 0.6 fb (10 GeV lepton pt cut)

 

mt = 172.5 GeV
mH = 125 GeV
Generation should endeavor to be consistent with the ATLAS MC12 parameters

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