Hee status report
Genova team
October 17, 2000





Data/MC comparison updated at 193 inv pb (last run 116590) adding the "MadMen" samples
Table and  plots : mix of MC at the different energies weighted by respective luminosities
 
 

Cut 
Data 
Tot 
q qbar 
l+l- 
WWEX 
eeqq 
more 4F 
2 phot 
Presel
1031.
1052.38± 4.08
629.32
15.15
370.92
20.97
7.48
8.55
Strong id
153.
186.75± 2.44
61.70
6.97
96.88
14.82
3.74
2.65
Electr. energy
68.
77.82± 1.99
17.65
5.19
38.00
13.12
2.63
1.22
Fit prob.
33.
30.82± 1.58
6.73
3.42
8.68
9.94
1.24
0.81
Jet iso
11.
12.83± 0.29
0.65
0.00
1.39
9.24
0.95
0.61
Mass sel
6.
10.14± 0.27
0.43
0.00
0.87
7.70
0.53
0.61
B tag>-1
1.
3.02± 0.08
0.13
0.00
0.08
2.34
0.47
0.00

Efficiency in the interesting region (before b tag):
 
 

Energy
M=108 GeV
M=110 GeV
M=112 GeV
M=114 GeV
M=115 GeV
205 GeV
59.86
57.27
55.71
55.21
54.98
206 GeV
57.43
57.34
54.45
53.16
54.23
206.7 GeV
57.82
56.66
56.66 
54.71
53.51
208 GeV
60.12
57.82
59.16
54.65
54.68

Probably (taking also into account the small impact of this channel) an optimiztion is not mandatory.

Search for candidates until run 116787

Last candidates

 115244/10493    5C: Mjet=87.3 GeV, Mee=Mz, fit prob=0.18 10^-5, btag=-0.74
                         4C: Mjet=100.1        Mee =78.6            0.5%
                         unfitted: recoil mass=113.9 GeV reco. jet mass=64.4 GeV Mee=71.2 GeV

115701/744      5C: Mjet=112.9 GeV, Mee=59.5 GeV, fit prob=0.025%, btag=-2.43
                         4C: Mjet=116.1        Mee =57.2            0.28%                      a leptonic event (not "e e tau tau")
                         unfitted: recoil mass=106.2 GeV reco. jet mass=66.2 GeV Mee=64.0 GeV    not a serious candidate