Higgs meeting,
June 5, 2000 Genova team
Data analysed: all high
energy data available last Friday à run 110685, òLdt = 46.27 pb-1.
Same analysis as for 1999
data
MC samples at 204/206 GeV
All data compared
alternatively to 204 and 206 GeV MC
DATA/MC (204 GeV) COMPARISON
Cut data
Tot. q qbar l+ l-
WWEX eeqq other 4F gamma gamma
Presel
225. 243.87± 2.20 154.06
3.70 77.13 5.15
1.77 2.05
Strongid
39. 42.71± 1.19 15.04
1.66 20.83 3.66
0.89 0.63
El.ene.
15. 18.37± 0.89 4.34
1.25 8.57 3.30
0.62 0.29
Fit pr.
5. 7.52± 0.64 1.75
0.83 1.95 2.50
0.30 0.20
Jet Iso.
1. 3.18± 0.14 0.18
0.00 0.26 2.35
0.24 0.15
Mass sel
0. 2.53± 0.12 0.10
0.00 0.17 1.96
0.15 0.15
B tag
0. 1.01± 0.05 0.04
0.00 0.06 0.78
0.13 0.00
DATA/MC
(206 GeV) COMPARISON
Cut
data Tot. q qbar l+ l- WWEX eeqq
other 4F gamma gamma
Presel
225. 244.60± 1.93 151.52
3.62 80.56 5.06
1.79 2.05
Strongid
39. 43.30± 1.06 14.98
1.68 21.55 3.58
0.88 0.63
El.ene.
15. 18.28± 0.82 4.35
1.24 8.60 3.18
0.63 0.29
Fit pr.
5. 6.88± 0.62 1.51
0.81 1.68 2.40
0.29 0.20
Jet Iso.
1. 2.94± 0.12 0.08
0.00 0.26 2.23
0.22 0.15
Mass sel
0. 2.32± 0.11 0.04
0.00 0.16 1.87
0.11 0.15
B tag
0. 0.82± 0.03 0.01 0.00
0.01 0.70 0.10
0.00
EFFICIENCIES AT 204 GeV
85 GeV 90 GeV 95 GeV 100 GeV 105 GeV 110 GeV 115 GeV 120
GeV
Presel
0.788 0.809 0.814
0.807 0.819 0.783±0.009 0.802 0.804
Strongid
0.655 0.671 0.697
0.674 0.683 0.670±0.011 0.678 0.692
El.ene.
0.635 0.645 0.678
0.649 0.660 0.648±0.011 0.643 0.654
Fit pr.
0.590 0.602 0.632
0.614 0.617 0.611±0.011 0.583 0.569
Jet Iso.
0.567 0.577 0.612
0.592 0.585 0.580±0.011 0.549 0.542
Mass sel
0.561 0.573 0.610
0.591 0.582 0.579±0.011 0.544 0.537
B tag
0.498 0.503 0.536
0.513 0.500 0.479±0.011 0.461 0.434
EFFICIENCIES AT 206 GeV
85 GeV 90 GeV 95 GeV 100 GeV 105 GeV 110 GeV 115 GeV 120
GeV
Presel
0.785 0.791 0.798
0.807 0.806 0.805±0.009 0.791 0.786
Strongid
0.645 0.666 0.670
0.688 0.678 0.684±0.010 0.669 0.660
El.ene.
0.629 0.649 0.645
0.670 0.658 0.657±0.011 0.637 0.626
Fit pr.
0.584 0.610 0.607
0.630 0.621 0.614±0.011 0.582 0.556
Jet Iso.
0.560 0.586 0.583
0.602 0.594 0.579±0.011 0.549 0.529
Mass sel
0.555 0.582 0.580
0.600 0.591 0.575±0.011 0.544 0.522
B tag
0.481 0.513 0.497
0.518 0.500 0.482±0.011 0.461 0.427
CONCLUSIONS
Very preliminary analysis
Fair data/MC agreement
Need to agree on a standard combination of 204/205/206 MC
Probably non necessary/useful to modify the analysis (see
comparison with REMCLU)
No candidate found so far (worrying?)