arXiv subjects

D. Zeppenfeld

Publications and source records attributed to D. Zeppenfeld.

92 records · Page 6Linked to original sources

arXiv1993

Finding the Leptonic $WW$ Decay Mode of a Heavy Higgs Boson

We reanalyze the extraction of the heavy Higgs boson signal $H\rightarrow W^+W^-\rightarrow \bar\ellν,\ell\barν$ $(\ell=e\hbox{ or }μ)$ from the Standard Model background at hadron supercolliders, taking into account revised estimates of the top quark background. With new acceptance criteria the detection of the signal remains viable. Requiring a forward jet-tag, a central jet-veto, and a large relative transverse momentum of the two charged leptons yields $S/\sqrt B>6$ for one year of running at the SSC or LHC.

hep-ph↗

arXiv1993

Measuring the Gamma-Gamma Coupling of the Higgs at Linear Colliders

Observing the production of the Higgs particle in the $γ$-$γ$ mode of a linear $e^+e^-$ collider allows for the measurement of the $Hγγ$ coupling. We point out that for the intermediate Higgs mass range this measurement is considerably more challenging than previously believed. The $b \bar b$ signature receives a large background from the production of heavy quark pairs by resolved photons. We quantify the experimental requirements needed to make a meaningful measurement in the presence of this background.

hep-ph↗