1 Preliminary stuff Summer09 ppMuMuX sample with CMSSW_3_3_2 –it requires opposite charge generated dimuons from heavy processes or K, pi, K0 L decays.

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Preliminary stuffPreliminary stuff• Summer09 ppMuMuX sample with CMSSW_3_3_2

– it requires opposite charge generated dimuons from heavy processes or K, pi, K0L decays in flight

• Muon properties:– Pt > 2.5 GeV– Eta < 2.5– Muon has a track

• Tracker + Global– “Muon has a track” does not imply is a Tracker Mu, it can be

Global Mu without beeing Tracker Mu

• Muons are defined– Prompt

• if Rxy < 4.4 cm– DiF (decays in flight)

• if Rxy > 4.4 cm

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All muonsAll muons

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DeltaR distribution, ALLDeltaR distribution, ALL

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DeltaPt distribution, ALLDeltaPt distribution, ALL

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DeltaPt vs DeltaR, ALLDeltaPt vs DeltaR, ALL

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DeltaPt vs DeltaR, PROMPTDeltaPt vs DeltaR, PROMPT

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DeltaPt vs DeltaR, DiFDeltaPt vs DeltaR, DiF

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Effects of DeltaR cut on DeltaPt all Effects of DeltaR cut on DeltaPt all muonsmuons

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Effects of DeltaPt cut on DeltaR all Effects of DeltaPt cut on DeltaR all muonsmuons

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Prompt muonsPrompt muons

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Reminder: DeltaR & DeltaPt distribution, ALLReminder: DeltaR & DeltaPt distribution, ALL

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Effects of DeltaR cut on DeltaPt prompt Effects of DeltaR cut on DeltaPt prompt muonsmuons

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Effects of DeltaPt cut on DeltaR prompt Effects of DeltaPt cut on DeltaR prompt muonsmuons

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DiF muonsDiF muons

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Reminder: DeltaR & DeltaPt distribution, ALLReminder: DeltaR & DeltaPt distribution, ALL

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Effects of DeltaR cut on DeltaPt DiF Effects of DeltaR cut on DeltaPt DiF muonsmuons

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Effects of DeltaPt cut on DeltaR DiF Effects of DeltaPt cut on DeltaR DiF muonsmuons

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ALL muonsALL muonsfrom PIONSfrom PIONS

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DeltaR distribution, ALL vs ALL_PionsDeltaR distribution, ALL vs ALL_Pions

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DeltaPt distribution, ALL vs ALL_PionsDeltaPt distribution, ALL vs ALL_Pions

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DeltaPtVSDeltaR distribution, ALL vs DeltaPtVSDeltaR distribution, ALL vs ALL_PionsALL_Pions

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DiF muonsDiF muonsfrom PIONSfrom PIONS

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Effects of DeltaR cut on DeltaPt DiF Effects of DeltaR cut on DeltaPt DiF pionspions

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Effects of DeltaPt cut on DeltaR DiF Effects of DeltaPt cut on DeltaR DiF pionspions

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ALL muonsALL muonsfrom KAONSfrom KAONS

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DeltaR distribution, ALL vs ALL_KaonsDeltaR distribution, ALL vs ALL_Kaons

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DeltaPt distribution, ALL vs ALL_KaonsDeltaPt distribution, ALL vs ALL_Kaons

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DeltaPtVSDeltaR distribution, ALL vs DeltaPtVSDeltaR distribution, ALL vs ALL_KaonsALL_Kaons

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DiF muonsDiF muonsfrom KAONSfrom KAONS

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Effects of DeltaR cut on DeltaPt DiF Effects of DeltaR cut on DeltaPt DiF kaonskaons

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Effects of DeltaPt cut on DeltaR DiF Effects of DeltaPt cut on DeltaR DiF kaonskaons

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Preliminary ConclusionsPreliminary Conclusions

• Prompt and DiF muons have very different distributions

• Loose cuts retain most Prompt and DiF– e.g. DeltaR =0.05, DeltaPt =0.1

• Tight cuts reject most DiF– e.g. DeltaR =0.005, DeltaPt =0.05

1 Preliminary stuff Summer09 ppMuMuX sample with CMSSW_3_3_2 –it requires opposite charge generated dimuons from heavy processes or K, pi, K0 L decays.

Documents

dif slide

effects of deltar

effects of deltapt

deltar dif muons

deltapt dif muons

prompt slide

deltar deltapt distribution

deltapt vs deltar