1. A. Gresele1 Validation of the Pre-Selection Code and of the Fast Simulation with H  WW  2  2 Validation of the Pre-Selection Code and of the Fast Simulation with H  WW  2  2 CMS Trento (A. Gresele, I. Lazzizzera)

2. A. Gresele2Samples  ~15000 events AOD (HLT +skimming) H  WW  2l2 with m H = 165 GeV  FullSim comes directly from CSA07, electronID performed with 1.6.9  FastSim done with 1.6.9 on top of the FullSim events

3. A. Gresele3 Pre-Selection Code -lepton selection: At least two leptons (e or μ) with: P T > 10, 20 GeV, |η| < 2.5 opposite charge -met cut: MET > 30 GeV -invariant mass cut: InvMass > 12 GeV Selected electrons/muons Isolated electrons/muons Muon corrected MET

4. A. Gresele4 FULL SIMULATION: =================================== #0 # # tot. events : 14945 #1 # of Leptons > 1 : 12274 #2 one lepton with pt>20GeV : 12257 #3 Lepton charge product : 12054 #4 MET : 10852 #5 Inv Mass : 11850 #6 All cuts : 10337 ===================================  ~ 70 % FAST SIMULATION =================================== #0 # # tot. events : 14945 #1 # of Leptons > 1 : 11032 #2 one lepton with pt>20GeV : 11004 #3 Lepton charge product : 9841 #4 MET : 9929 #5 Inv Mass : 9556 #6 All cuts : 8308 ===================================  ~ 56 %

5. A. Gresele5 WW incl =================================== #0 # # tot. events : 12820 #1 # of Leptons > 1 : 6203 #2 one lepton with pt>20GeV : 6202 #3 Lepton charge product : 5798 #4 MET : 4331 #5 Inv Mass : 5908 #6 All cuts : 3947 ===================================  ~ 31 % mcatnloTTbar =================================== #0 # # tot. events : 41902 #1 # of Leptons > 1 : 11649 #2 one lepton with pt>20GeV : 11570 #3 Lepton charge product : 10115 #4 MET : 9519 #5 Inv Mass : 11255 #6 All cuts : 8140 ===================================  < 1 %

6. A. Gresele6 Muons paramMuons:ParamGlobalMuons NO  combinedMuon()

7. A. Gresele7

8. 8

9. 9

10. 10Electrons

11. A. Gresele11

12. A. Gresele12

13. A. Gresele13

14. A. Gresele14MET