Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-03-24
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, Latex, 6 figures, Talk given at Ringberg Higgs Workshop, Dec. 1996, 6 new figures not included in published version
Scientific paper
We show that the Standard Model Higgs decay $h^0 \to W^+W ^- \to l^+ l^- \nu {\bar\nu}$ is the most sensitive mode for SM Higgs searches in the range 155-180 GeV. The previously considered mode $h^0 \to Z^0 Z^{0*} \to l^+ l^- l^+l^-$ has a significantly lower search sensitivity. We place particular emphasis on two new cuts based on (i) the boost and (ii) the spin-correlation of the $W^+W^-$-system. The distribution we obtain from our combined cuts shows a mass sensitive peak which probably allows a mass determination to $\pm$ 5 GeV for 5 fb^{-1}. This contribution complements our earlier published paper.
Dittmar Michael
Dreiner Herbi
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