1. Alpgen MC Samples Jet Flavour Identifier Lepton ID Plots

2. Alpgen Settings for CMS Alpgen v2.05 CMS Default kinematic cuts in Alpgen  Pt(l,c,b) > 20 GeV  |eta (j,c,b)| < 5.0  |eta(e,mu,tau)| < 3.0  dR(jj)>=0.7  dR(lj)>=0.0  M_top = 175 GeV

3. Alpgen Data Samples W+NJets Wbb+NJets Z+NJets Zbb+NJets (running & failing on grid) WW/WZ/ZZ

4. Jet Multiplicity Hard process has to be showered. Afterwards two possible modes: Inclusive: Events with extra Jets due to the parton shower are kept. Exclusive: Events with extra jets are rejected. For a exclusive sample set the one with the highest jet mulitplicity must be a inclusive sample

5. Cuts in Event Selection Electron  |eta| < 2.4  Pt > 26 GeV Muon  |eta| < 2.1  Pt > 19 GeV TQAF ID  LeptonID >= 1  Track Isolation < 0.1  Likelihood Ratio > 0.5 Jets  |eta| < 5  Pt > 30 GeV  btag > 0.54  MET > 30

6. Selection Efficiency W+Jets W+0 JetsW+1JetW+2 JetsW+3 JetsW+4 JetsW+5 JetsW+6 Jets Cross section [pb]30 0008 0002 5007221744531 Total Events195 933191 966180 93750 19972 58555 20919 619 2 Jet Bin3 81436 00582 84822 88511 5203 146155 After Cuts: All636808252150533 Barrel Electrons132085938150 Endcap Electrons12642816111 Muons43153616596272 Efficiency [%]0.00310.0190.450.500.210.0960.015

7. Jet Flavour Identifier Algorithmic Definition Physics Definition

8. JFI – Algorithmic Definition Find Parton that most likely determines the properties of the jet and assign its flavour as the “true” jet flavour If b or c quark matches to jet cone (ΔR < 0.3) label jet as b or c jet Else assign flavour of hardest parton to the jet

9. JFI – Physics Definition Match reco jet to initial partons from primary process with ΔR < 0.3 No matching if hard final state radiation changes the parton direction significantly No flavour assignement if matching is ambigous: >1 initial partons match the jet Gluon jets splitting to c or b quarks are labeled as gluon

10. JFI – Energetic Definition Only for GenJets Calculate energy fraction of b and c hadrons in the jet Use b/c energy ratio to determine jet flavour

11. TQAF JFI Settings RejectBC Splitting = false PhysicsDef = false fillPartons = true fillHeavyHadrons=false

12. Jet Flavour in W+Jets 0123456 uds56.157.449.444.040.337.633.5 c0.812.910.99.88.57.76.8 b00.20.60.91.11.52.1 g43.129.439.145.250.153.357.6  W+Jets Pretag Sample  TQAF uses Algorithmic Definition  all jets in the events after preselection

13. Selection Efficiency Wbb+Jets Wbb+2 JetsWbb+3 Jets Cross section [pb]100 Total Events147 89422 982 2 Jet Bin14 322788 After Cuts: All76840 Barrel Electrons19914 Endcap Electrons903 Muons47923 Efficiency [%]0.520.17 Wbb+0/1 Jets not available yet

14. Selection Efficiency Z+Jets Z+0 JetsZ+1JetZ+2 JetsZ+3 JetsZ+4 JetsZ+5 JetsZ+6 Jets Cross section [pb]2 436670230661743 Total Events43 81447 86946 56047 91321 4024 7794 185 2 Jet Bin5 26712 39019 31013 0182 65720926 After Cuts: All13186812551 Barrel Electrons1122019410 Endcap Electrons05610200 Muons01460521941 Efficiency [%]0.00230.0650.180.170.120.100.024

15. Selection Efficiency Di-Boson WW (?)WZZZ Cross section [pb]10.54.32.6 Total Events230 959200 00069 478 2 Jet Bin72 60159 63120 239 After Cuts: All46153065 Barrel Electrons12614814 Endcap Electrons42515 Muons29333146 Efficiency [%]0.200.270.094

16. Selection Efficiency ttSingle top Cross section [pb]833250 Total Events2 732 326192 400 2 Jet Bin189 51985 845 After Cuts: All42 463 12 845 Barrel Electrons13 2774 074 Endcap Electrons2 707795 Muons26 4797 976 Efficiency [%]1.556.68

17. Track Probability Jet Tags Distribution Peaks stem from bug in CMSW 1.3.6 algorithm. Fixed in CMSSW >= 1.5X

18. Lepton ID - Electrons TQAF 136 070822 TQAF 136 071018 55 302 45 978 55 209 45 978

19. Likelihood Ratio - Electrons TQAF 136 070822 TQAF 136 071018 55 302 45 978 55 209 45 978

20. Likelihood Ratio - Muon 11 502 52 321

21. Track Isolation - Electrons TQAF 136 070822 TQAF 136 071018 55 302 45 978 55 209 45 978

22. Track Isolation - Muon TQAF 136 070822 TQAF 136 071018 52 321 11 502