TEST OF HZHA WITH ZZ FUSION CONTRIBUTION IN
Hee PRODUCTION

                                        Higgs meeting 26 Feb, 2001 - Genova team

Fixed energy = 206.7 GeV - check cross sections for H masses in the range 105 to 120 GeV
 
 

Mass (GeV/c2)
Born HZ (fb)
rad.corr. HZ (fb)
ZZ fusion (fb)
Interference (fb)
HZ + ZZ + interf.
total rad. corr. (fb)
105
10.58
8.36
0.48
-0.37
10.69
8.42
110
7.38
5.44
0.40
-0.45
7.33
5.39
115
2.58
1.72
0.33
-0.47
2.44
1.63
120
0.427
0.320
0.266
-0.266
0.427
0.331

Negligible effect on total x-sect because of large negative interference
What about distributions?
Check (parton level) for MH = 110 GeV/c2.
No big effect observable on simple variables (-->  plots )

CONCLUSION: probably not necessary but should not harm, so use it.