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1 Hgg Cut based Analysis update Jim Branson, Chris Palmer, Marco Pieri, Matteo Sani, Sean Simon
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2 Introduction Trying to address the guidelines for Higgs Review from Higgs conveners Oct 12 th Description of analysis Sequential cuts plots and yields N-1 plots and final plots for all variables Categories Measurement of efficiency and photon variables distributions with electrons with Z->ee Systematic uncertainties Sensitivity for 1fb-1 Fermiophobic Higgs interpretation Summary of results
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3 Description of Analysis Main background – Born/Box (irreducible) – Gamma+Jets (reducible) – QCD (reducible) Strategy – Remove nearly all reducible bkg – Separate into useful categories (in eta, R9, and possibly Ptgammagamma)
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4 Loose Pre-Selection For now using all Photon HLT paths – Very small effect expected – preselection tighter than cuts Spike Cleaning from 38X RECO Lead p T > 30 GeV, Sublead p T > 20 GeV 0 < | | < 2.5 – H/E < 0.1 – Track Iso hollow DR03 < 7.0 + 0.002*p T – Ecal Iso DR03 < 8.4 + 0.012*p T – Hcal Iso DR03 < 4.4+ 0.005*p T
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5 Cut-Based Selection Lead p T > 40 GeV, Sublead p T > 30 GeV 0 < | | < 1.4442 or 1.566 < | | < 2.5 (we would like to take it out) – H/E < 0.02 – i i < 0.01(EB) 0.028(EE) – Pixel Veto – Track Iso hollow DR04 < 1.5 + 0.001*p T – Ecal Iso DR04 < 2.0 + 0.006*p T – Hcal Iso DR04 < 2.0 + 0.0025*p T
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6 Disclaimer on sequential cuts and other plots Sequential cuts are applied (on the two photons at the same time) After preselection lack of MC attributed to the Gen level Filter – Ratio of filtered to unfiltered for GamJet gam + fake is 0.74 before cuts and 1 after cuts – Not measured for QCD For now use old PTDR K-Factors for BG and constant K-factor for Higgs Signal (standard cross sections used in CMS) Mass cut at 100 GeV is applied to account for generator level mass cut in QCD and Gamma+Jet samples
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7 Sequential Cuts Plots – 0) Preselection – 1) p T – 2) Track Iso – 3) Ecal Iso – 4) Hcal Iso – 5) i i – 6) Pixel Veto – 7) H/E – 8) -Gap 0 1 2 3 4 5 6 7 8 Cut names
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8 Sequential Cuts - Leading Photon More leading Photon variables in Backup
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9 Lead p T
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10 Lead i i
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11 Lead R9
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12 Sequential Cuts - Subleading Photon More Subleading Photon variables in Backup
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13 Sublead p T
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14 Sublead i i
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15 Sublead R9
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16 Sequential Cuts – Diphoton Variables More Diphoton variables in Backup
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17 Sequential Cuts M
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18 Sequential Cuts p T
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19 Sequential Cuts – Tables Data/MC comparison 100-250 GeV Mass Range Data/MC Comparison in 120±5 GeV window (tables for masses 105,110,115,130, and 140 in Backup) Signal Expectation and Efficiency & Expected Background under peak at 120 GeV for ∫L=1fb - 1 (tables for 110,115,130, and 140 in Backup)
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Data ∑MC bkgd -Born -Box Jet QCD Drell- Yan Preselection 2.28E+041.22E+04136.845.591268 1.03E+0 4 462.8 pTpT 76154969110.435.2870.53561392.2 Track Iso 1519113990.1328.03289.1412.9319.1 Ecal Iso 827801.186.8926.83197.3187.6302.4 Hcal Iso 73272385.7326.44172.6140.3298 iiii 555576.683.5925.69118.862.42286.1 Pixel Veto 189213.471.3322.6784.8334.50.06766 H/E 166196.868.0121.778.1828.860.06766 Gap 156186.164.4320.7274.2226.70.06766 20 Data/MC Comparison Mass Window 100-250 GeV ∫L = 34.7 pb -1 PTDR K-Factors
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21 Data ∑MC bkgd - Born -Box Jet QCDZee Preselection 3192164119.67.6204.61351.058.0 pTpT 107667215.35.9141.6458.450.4 Track Iso 19216112.54.746.256.341.4 Ecal Iso 10411112.14.431.123.339.5 Hcal Iso 9498.811.94.426.916.638.9 iiii 6977.711.64.218.16.737.1 Pixel Veto 2730.110.03.812.63.80.0 H/E 2527.69.53.611.43.00.0 Gap 2426.29.03.510.82.90.0 Data/MC Event Yields in Mass Window 120±5 GeV for ∫L=34.7pb -1 Tables for 110, 115, 130 and 140 in Backup Slides PTDR K-Factors
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22 Signal Yield and Efficiency @ M H = 120 GeV for ∫L=1fb -1 M H = 120 GeV Signal CUT ALL Background/GeV at 120 Preselection 29.350.674 4730 pTpT 25.640.8740.5891935 Track Iso 20.860.8130.479464.2 Ecal Iso 19.90.9540.457318.3 Hcal Iso 19.590.9840.450284.6 iiii 18.740.9570.431223.9 Pixel Veto 16.610.8860.38286.73 H/E 15.790.9510.36379.41 Gap 15.020.9510.34575.47 Tables for 110, 115, 130 and 140 in Backup Slides PTDR K-Factors
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23 N-1 Plots – Lead Photon Mass Cut at 100 GeV applied Lead Photon – More plots in Backup
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24 Lead p T (N-1) Lead p T > 40 GeV Signal x 100
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25 Lead p T Lead p T > 40 GeV Signal x 100
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26 Lead i i (N-1) i i Signal x 100
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27 Lead i i i i Signal x 100
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28 N-1 Plots – sublead photon Mass Cut at 100 GeV applied Sublead Photon – More plots in Backup
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29 Sublead p T (N-1) Lead p T > 40 GeV Signal x 100
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30 Sublead p T Lead p T > 40 GeV Signal x 100
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31 Sublead i i (N-1) i i Signal x 100
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32 Sublead i i i i Signal x 100
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33 Photon Categories Photon Categories – More plots in Backup We have different possibilities: – R9 (worst photon determines the diphoton category) 2 cats: split at 0.93 3 cats: split at 0.90 and 0.95 – |Eta| (larger |eta| determines the diphoton category) 2 cats split barrrel/endcap 4 cats split 0.9, barrel/endcaps, 2.1 – Ptgammagamma 2 cats 40 GeV 3 cats 25 GeV and 50 GeV From these for now show (some in backup): – 4,6,12 cat R9, eta – 4 R9.eta x 2,3 Ptgamgam
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34 All Selected Events SIGNAL x 10
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35 SIGNAL x 100 All Selected Events
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36 2 R9 x 2 Eta SIGNAL x 10
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Signal In Categories 2R9 x 2 Eta 37 Fraction of events (M H = 120 GeV) Categor y Total Signal Gluon Fusion VB F Assoc. Prod. Background in Mass Window 00.3460.3440.3750.3320.212 10.3250.3270.3260.2950.294 20.170 0.1580.1980.237 30.159 0.1420.1750.257
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38 2 R9 x 2 Eta x 2 p T SIGNAL x 10
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39 2 R9 x 2 Eta x 2 p T SIGNAL x 10
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Signal In Categories 2R9 x 2 Eta x 2 p T 40 Fraction of events (M H = 120 GeV) Categor y Total Signal Gluon Fusion VB F Assoc. Prod. Background in Mass Window 00.1400.1210.3010.2670.045 10.1190.1030.2530.2250.060 20.0630.0540.1200.1460.061 30.0550.0480.1060.1260.054 40.2060.2230.0740.0650.167 50.2070.2240.0730.0700.234 60.1080.1160.0380.0520.175 70.1030.1110.0350.0490.203 Hi R9 Lo R9 Hi R9 Lo R9 Hi R9 Lo R9 Hi R9 Lo R9 EB EE EB EE Hi p T Lo p T
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41 Photon Efficiency with Z Tag and Probe All results are (will appear) in: – CMS AN-2010/292 -- Photon Efficiency Measurements using Tag and Probe Factorized T&P
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42 Also study photon variables for electrons with pileup as function of NVTX
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43 Background Estimate from Sidebands For now Exponential is fit to the mass distribution Still need to properly take out Higgs Mass hypothesis region Statistical error from the fit used in CLs method random experiments
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44 Signal systematic error Using for now 12.5% quoted by N. Chanon
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45 Sensitivity for 1 fb-1 REMAKE
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46 Fermiophobic Higgs Only use information from Ptgamgam Analysis is exactly the same as SM one For now use 8 categories: – 2 R9 – 2 |eta| – 2 Ptgamgam For now extrapolate/interpolate sigma/BR
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47 Fermiophobic H cross sections and BR (pb) Mass (GeV)VBFWH+ZHBR FFVBF*BR (ZH+WH) *BR 851.923.080.671.282.06 901.802.560.410.731.04 951.692.150.250.430.54 1001.601.820.160.260.29 1051.511.550.110.16 1101.441.330.070.100.09 1151.361.160.050.060.05 1201.301.010.030.040.03 REMAKE
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48 Looking at the data Using 34.7 pb-1 Fundamental disclaimer: IT MAY BE WRONG IN MANY PLACES – Need cross checking Only have mass points at 90 and 110 GeV Approximate signal shape at other masses Approximate sigma and BR For the plots use 90 GeV (optimistic) Signal and BG syst errors included Mass resolution error probably optimistic (Need laser corrections)
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49 Fermiophobic Higgs Exclusion Very-very preliminary REMAKE
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50 Summary SM inclusive analysis in rather good shape Checks on mass resolution ongoing in DPG Will check better sensitivity and current fermiophobic 1-CL result Should cross check with others
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51 Backup
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52 Sequential Cuts - Leading Photon More leading Photon variables in Backup
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53 Lead Pixel Veto
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54 Lead Track Isolation
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55 Lead Ecal Isolation
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56 Lead Ecal Isolation
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57 Lead Hcal Isolation
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58 Lead p T
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59 Lead p T
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60 Lead i i
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61 Lead i i
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62 Lead H/E
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63 Lead Gap
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64 Lead R9
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65 Lead R9
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66 Sequential Cuts - Subleading Photon More Subleading Photon variables in Backup
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67 Sublead Pixel Veto
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68 Sublead Track Isolation
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69 Sublead Ecal Isolation
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70 Sublead Ecal Isolation
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71 Sublead Hcal Isolation
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72 Sublead p T
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73 Sublead p T
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74 Sublead i i
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75 Sublead i i
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76 Sublead H/E
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77 Sublead -Gap
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78 Sublead R9
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79 Sublead R9
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80 Sequential Cuts – Diphoton Variables More Diphoton variables in Backup
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81 Sequential Cuts M
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82 Sequential Cuts p T
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83 Sequential Cuts p T
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84 Sequential Cuts
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85 Sequential Cuts
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86 Sequential Cuts cos( *)
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87 Data ∑MC bkgd - Born -Box Jet QCDZee Preselection 41672141.0 26.311.2295.21680.0128.4 pTpT 1437892.8 19.58.1191.7566.5107.0 Track Iso 338239.6 16.06.561.667.188.3 Ecal Iso 192178.0 15.46.241.231.583.6 Hcal Iso 179164.9 15.26.136.424.682.5 iiii 143137.7 14.85.924.313.179.6 Pixel Veto 4042.9 12.65.217.27.80.0 H/E 3739.4 12.15.015.86.50.0 Gap 3737.3 11.44.814.96.10.0 Data/MC Event Yields in Mass Window 110±5 GeV for ∫L=34.7pb -1 PTDR K-Factors
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88 Data ∑MC bkgd - Born -Box Jet QCDZee Preselection 35841873.022.69.2249.31509.083.1 pTpT 1217772.517.46.8166.0511.371.0 Track Iso 263195.114.25.453.763.458.4 Ecal Iso 143138.213.75.235.428.855.2 Hcal Iso 134126.013.55.131.022.054.4 iiii 102102.413.15.020.511.452.5 Pixel Veto 4137.311.24.414.77.00.0 H/E 3934.210.74.213.75.50.0 Gap 3832.410.24.013.05.30.0 Data/MC Event Yields in Mass Window 115±5 GeV for ∫L=34.7pb -1 PTDR K-Factors
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89 Data ∑MC bkgd - Born -Box Jet QCDZee Preselection 24941314.015.75.2144.11115.034.5 pTpT 817540.212.74.1102.2390.231.0 Track Iso 182118.110.43.233.346.824.4 Ecal Iso 9478.310.03.122.619.722.8 Hcal Iso 8070.09.93.119.714.822.6 iiii 5454.59.63.013.26.921.9 Pixel Veto 2623.98.22.69.53.60.0 H/E 2222.37.92.58.63.30.0 Gap 1921.37.52.48.33.20.0 Data/MC Event Yields in Mass Window 130±5 GeV for ∫L=34.7pb -1 PTDR K-Factors
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90 Data ∑MC bkgd - Born -Box Jet QCDZee Preselection 20191065.0 12.33.7106.7919.522.9 pTpT 637440.3 10.33.077.1328.921.0 Track Iso 11289.3 8.42.425.736.316.5 Ecal Iso 5260.4 8.02.317.217.315.7 Hcal Iso 4453.3 7.92.315.012.715.4 iiii 3739.7 7.72.210.64.314.9 Pixel Veto 2018.2 6.51.97.32.40.0 H/E 1617.1 6.31.96.72.30.0 Gap 1616.1 5.91.86.51.90.0 Data/MC Event Yields in Mass Window 140±5 GeV for ∫L=34.7pb -1 PTDR K-Factors
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91 M H = 110 GeV Signal CUT ALL Background/GeV at 110 Preselection 29.420.64986169.0 pTpT 24.540.54212573.0 Track Iso 20.030.4423690.4 Ecal Iso 19.110.4221512.8 Hcal Iso 18.810.4154475.2 iiii 17.990.3973396.8 Pixel Veto 15.950.3523123.6 H/E 15.160.3348113.4 Gap 14.440.3188107.4 Signal Yield and Efficiency @ M H = 110 GeV for ∫L=1fb -1 PTDR K-Factors
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92 M H = 115 GeV Signal CUT ALL Background/GeV at 115 Preselection 29.750.6645398.0 pTpT 25.390.56662226.0 Track Iso 20.650.4608562.2 Ecal Iso 19.670.439398.3 Hcal Iso 19.370.4324363.1 iiii 18.550.414295.2 Pixel Veto 16.430.3667107.4 H/E 15.630.348998.5 Gap 14.890.332393.5 Signal Yield and Efficiency @ M H = 115 GeV for ∫L=1fb -1 PTDR K-Factors
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93 M H = 130 GeV Signal CUT ALL Background/GeV at 130 Preselection 25.680.68953787 pTpT 23.050.61871557 Track Iso 18.80.5047340.3 Ecal Iso 17.930.4813225.6 Hcal Iso 17.640.4736201.7 iiii 16.920.4543157.1 Pixel Veto 150.402668.93 H/E 14.250.382564.31 Gap 13.540.363461.51 Signal Yield and Efficiency @ M H = 130 GeV for ∫L=1fb -1 PTDR K-Factors
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94 M H = 140 GeV Signal CUT ALL Background/GeV at 140 Preselection 19.420.70493069 pTpT 17.790.64571269 Track Iso 14.490.5258257.3 Ecal Iso 13.850.5027174.2 Hcal Iso 13.620.4945153.7 iiii 13.070.4744114.5 Pixel Veto 11.610.421452.44 H/E 11.040.400849.39 Gap 10.520.381846.29 Signal Yield and Efficiency @ M H = 140 GeV for ∫L=1fb -1 PTDR K-Factors
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Data ∑MC bkgd -Born -Box Jet QCD Drell- Yan Preselection 2.28E+041.21E+0491.223812061.03E+04462.8 pTpT 7615488673.629.34829.63561392.2 Track Iso 1519107660.0723.36260.2412.9319.1 Ecal Iso 827740.857.9122.36170.6187.6302.4 Hcal Iso 732663.957.1422.04146.5140.3298 iiii 555519.355.7221.4193.6462.42286.1 Pixel Veto 189164.447.5618.963.434.50.06766 H/E 166150.145.3518.0957.7128.860.06766 Gap 156141.742.9617.2754.6726.70.06766 95 Data/MC Comparison Mass Window 100-250 GeV ∫L = 34.7 pb -1 No K-Factors
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96 Data ∑MC bkg d - Born -Box Jet QCD Preselection 31921624 pTpT 1076659.2 Track Iso 192151.9 Ecal Iso 104101.8 Hcal Iso 9490.29 iiii 6969.44 Pixel Veto 2723.03 H/E 2520.87 Gap 2419.83 Data/MC Event Yields in Mass Window 120±5 GeV for ∫L=34.7pb -1 No K-Factors
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97 Signal Yield and Efficiency @ M H = 120 GeV for ∫L=1fb -1 M H = 120 GeV Signal CUT ALL Background/GeV at 120 Preselection 29.40.674 4680 pTpT 25.60.8740.5891900 Track Iso 20.90.8130.479437.8 Ecal Iso 19.90.9540.457293.4 Hcal Iso 19.60.9840.450260.2 iiii 18.70.9570.431200.1 Pixel Veto 16.60.8860.38266.38 H/E 15.80.9510.36360.13 Gap 15.00.9510.34557.16 No K-Factors
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98 N-1 Plots – Lead Photon Lead Photon – More plots in Backup
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99 Lead p T (N-1) Lead p T > 40 GeV Signal x 100
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100 Lead p T Lead p T > 40 GeV Signal x 100
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101 Lead (N-1) Suoercluster or Signal x 100
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102 Lead Suoercluster or Signal x 100
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103 Lead H/E (N-1) H/E < 0.02 Signal x 100
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104 Lead H/E H/E < 0.02 Signal x 100
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105 Lead i i (N-1) i i Signal x 100
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106 Lead i i i i Signal x 100
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107 Lead Pixel Veto (N-1) Veto Pixel Seed Signal x 100
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108 Lead Pixel Veto Veto Pixel Seed Signal x 100
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109 Lead Track Isolation (N-1) Track Sum p T (Hollow R < 0.4) < 1.5 + 0.001*p T Signal x 100
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110 Lead Track Isolation Track Sum p T (Hollow R < 0.4) < 1.5 + 0.001*p T Signal x 100
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111 Lead Ecal Isolation (N-1) Ecal Sum E T ( R < 0.4) < 2.0 + 0.006*p T Signal x 100
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112 Lead Ecal Isolation Ecal Sum E T ( R < 0.4) < 2.0 + 0.006*p T Signal x 100
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113 Lead Hcal Isolation (N-1) Hcal Sum E T ( R < 0.4) < 2.0 + 0.0025*p T Signal x 100
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114 Lead Hcal Isolation Hcal Sum E T ( R < 0.4) < 2.0 + 0.0025*p T Signal x 100
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115 N-1 Plots – sublead photon Sublead Photon – More plots in Backup
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116 Sublead p T (N-1) Lead p T > 40 GeV Signal x 100
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117 Sublead p T Lead p T > 40 GeV Signal x 100
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118 Sublead (N-1) Suoercluster or Signal x 100
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119 Sublead Suoercluster or Signal x 100
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120 Sublead H/E (N-1) H/E < 0.02 Signal x 100
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121 Sublead H/E H/E < 0.02 Signal x 100
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122 Sublead i i (N-1) i i Signal x 100
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123 Sublead i i i i Signal x 100
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124 Sublead Pixel Veto (N-1) Veto Pixel Seed Signal x 100
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125 Sublead Pixel Veto Veto Pixel Seed Signal x 100
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126 Sublead Track Isolation (N-1) Track Sum p T (Hollow R < 0.4) < 1.5 + 0.001*p T Signal x 100
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127 Sublead Track Isolation Track Sum p T (Hollow R < 0.4) < 1.5 + 0.001*p T Signal x 100
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128 Sublead Ecal Isolation (N-1) Ecal Sum E T ( R < 0.4) < 2.0 + 0.006*p T Signal x 100
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129 Sublead Ecal Isolation Ecal Sum E T ( R < 0.4) < 2.0 + 0.006*p T Signal x 100
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130 Sublead Hcal Isolation (N-1) Hcal Sum E T ( R < 0.4) < 2.0 + 0.0025*p T Signal x 100
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131 Sublead Hcal Isolation Hcal Sum E T ( R < 0.4) < 2.0 + 0.0025*p T Signal x 100
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132 Photon Categories Photon Categories – More plots in Backup We have different possibilities: – R9 (worst photon determines the diphoton category) 2 cats: split at 0.93 3 cats: split at 0.90 and 0.95 – |Eta| (larger |eta| determines the diphoton category) 2 cats split barrrel/endcap 4 cats split 0.9, barrel/endcaps, 2.1 – Ptgammagamma 2 cats 40 GeV 3 cats 25 GeV and 50 GeV From these for now show (some in backup): – 4,6,12 cat R9, eta – 4 R9.eta x 2,3 Ptgamgam
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133 3 R9 x 4 Eta SIGNAL x 10
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Signal In Categories 3R9 x 4 Eta 134 Fraction of events (M H = 120 GeV) Categor y Total Signal Gluon Fusion VB F Assoc. Prod. Background in Mass Window 00.131 0.1440.1210.060 10.0940.0930.1030.0920.058 20.0980.0990.1000.0840.076 30.0940.0930.1000.0930.074 4 0.0830.0790.061 50.1790.1810.1710.1590.178 60.069 0.0670.0760.077 70.055 0.0660.067 80.101 0.0890.1070.152 90.054 0.0470.0660.085 100.022 0.0190.0270.055 110.029 0.0220.0320.059
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Categories 135
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No Categories All Events Mass Plots – Signal Stacked – Signal Out Front 136
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137 All Selected Events SIGNAL x 10
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138 SIGNAL x 100 All Selected Events
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4 Categories 4 Categories Mass Plots – Signal Stacked – Signal Out Front – Fine Binning (Signal Out Front) – Category Table 139
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140 2 R9 x 2 Eta SIGNAL x 10
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141 2 R9 x 2 Eta SIGNAL x 10
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142 2 R9 x 2 Eta SIGNAL x 10
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Signal In Categories 2R9 x 2 Eta 143 Fraction of events (M H = 120 GeV) Categor y Total Signal Gluon Fusion VB F Assoc. Prod. Background in Mass Window 00.3460.3440.3750.3320.212 10.3250.3270.3260.2950.294 20.170 0.1580.1980.237 30.159 0.1420.1750.257
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8 Categories 8 Categories Mass Plots – Signal Stacked – Signal Out Front – Fine Binning (Signal Out Front) – Category Table 144
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145 2 R9 x 2 Eta x 2 p T SIGNAL x 10
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146 2 R9 x 2 Eta x 2 p T SIGNAL x 10
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147 2 R9 x 2 Eta x 2 p T SIGNAL x 10
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Signal In Categories 2R9 x 2 Eta x 2 p T 148 Fraction of events (M H = 120 GeV) Categor y Total Signal Gluon Fusion VB F Assoc. Prod. Background in Mass Window 00.1400.1210.3010.2670.045 10.1190.1030.2530.2250.060 20.0630.0540.1200.1460.061 30.0550.0480.1060.1260.054 40.2060.2230.0740.0650.167 50.2070.2240.0730.0700.234 60.1080.1160.0380.0520.175 70.1030.1110.0350.0490.203 Hi R9 Lo R9 Hi R9 Lo R9 Hi R9 Lo R9 Hi R9 Lo R9 EB EE EB EE Hi p T Lo p T
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8 Categories 8 Categories DiPhoton P T Plots – Signal Stacked and Scaled by 10 – Signal Out Front and Scaled by 50 149
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150 2 R9 x 2 Eta x 2 p T SIGNAL x 10
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151 2 R9 x 2 Eta x 2 p T SIGNAL x 50
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EXTRA 12 Categories Mass Plots – Signal Stacked – Signal Out Front – Fine Binning (Signal Out Front) – category table 152
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153 3 R9 x 4 Eta SIGNAL x 10
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154 3 R9 x 4 Eta SIGNAL x 10
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155 3 R9 x 4 Eta SIGNAL x 10
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Signal In Categories 3R9 x 4 Eta 156 Fraction of events (M H = 120 GeV) Categor y Total Signal Gluon Fusion VB F Assoc. Prod. Background in Mass Window 00.131 0.1440.1210.060 10.0940.0930.1030.0920.058 20.0980.0990.1000.0840.076 30.0940.0930.1000.0930.074 4 0.0830.0790.061 50.1790.1810.1710.1590.178 60.069 0.0670.0760.077 70.055 0.0660.067 80.101 0.0890.1070.152 90.054 0.0470.0660.085 100.022 0.0190.0270.055 110.029 0.0220.0320.059
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