| 1 | # basic selection for semi-leptonic ttbar events
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| 2 |
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| 3 | # requirements:
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| 4 | # event.muons
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| 5 | # event.electrons
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| 6 | # event.jets
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| 7 | # event.selectedJets
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| 8 | # event.bJets
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| 9 | # event.topCandidates_L
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| 10 | # event.topCandidates_H
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| 11 | # event.topPairCandidates
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| 12 |
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| 13 | # the list of category names
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| 14 | categoryNames = [ "l4j", "withPtCuts", "withBtag", "LeptonicTopCandidate", "HadronicTopCandidate", "TtbarCandidate" ]
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| 15 |
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| 16 | def eventCategory(event):
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| 17 | """Check analysis requirements for various steps
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| 18 | and return a tuple of data used to decide
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| 19 | to what category an event belong """
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| 20 | categoryData = [ ]
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| 21 | # 0: number of muons
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| 22 | categoryData.append(event.muons.GetEntries())
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| 23 | # 1: number of electrons
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| 24 | categoryData.append(event.electrons.GetEntries())
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| 25 | # 2: number of jets
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| 26 | categoryData.append(event.jets.GetEntries())
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| 27 | # 3: Pt of the leading muon
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| 28 | if event.muons.GetEntries():
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| 29 | categoryData.append(event.muons[0].PT)
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| 30 | else:
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| 31 | categoryData.append(0.)
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| 32 | # 4: Pt of the leading electron
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| 33 | if event.electrons.GetEntries():
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| 34 | categoryData.append(event.electrons[0].PT)
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| 35 | else:
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| 36 | categoryData.append(0.)
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| 37 | # 5: number of selected jets
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| 38 | categoryData.append(len(event.selectedJets))
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| 39 | # 6: number of bjets
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| 40 | categoryData.append(len(event.bJets))
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| 41 | # 7: leptonic top candidate
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| 42 | categoryData.append(len(event.topCandidates_L))
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| 43 | # 8: hadronic top candidate
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| 44 | categoryData.append(len(event.topCandidates_H))
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| 45 | # 9: top pairs
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| 46 | categoryData.append(len(event.topPairCandidates))
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| 47 | # DONE
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| 48 | return categoryData
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| 49 |
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| 50 | def isInCategory(category, categoryData):
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| 51 | """Check if the event enters category X, given the tuple computed by eventCategory."""
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| 52 | if category==0:
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| 53 | return (categoryData[0]>0 or categoryData[1]>0) and categoryData[2]>=4
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| 54 | elif category==1:
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| 55 | return isInCategory(0,categoryData) and (categoryData[3]>15 or categoryData[4]>15) and categoryData[5]>=4
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| 56 | elif category==2:
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| 57 | return isInCategory(1,categoryData) and categoryData[6]>=2
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| 58 | elif category==3:
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| 59 | return isInCategory(2,categoryData) and categoryData[7]>0
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| 60 | elif category==4:
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| 61 | return isInCategory(2,categoryData) and categoryData[8]>0
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| 62 | elif category==5:
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| 63 | return isInCategory(2,categoryData) and categoryData[9]>0
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| 64 | else:
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| 65 | return False
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| 66 |
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