Search for a Higgs Boson Decaying into Two Photons with the L3 Detector at LEP

Details Search for a Higgs Boson Decaying into Two Photons with the L3 Detector at LEP Search for a Higgs Boson Decaying into Two Photons with the L3 Detector at LEP

2000-11-23

arxiv.org/abs/hep-ex/0011082v1

Int.J.Mod.Phys. A16S1B (2001) 843-845

Physics

High Energy Physics

High Energy Physics - Experiment

3 pages, 2 postscript figures, Presented at the DPF2000 Conference, August 9-12, 2000, The Ohio State University, Columbus, Oh

Scientific paper

10.1142/S0217751X01008266

A search is performed for a Higgs boson, decaying into two photons, using the L3 data collected at centre of mass energies between $\sqrt s$ = 189 and 202 GeV, corresponding to an integrated luminosity of 400 pb$^{-1}$. The processes $e^{+}e^{-}\to {Zh} \to {q} \bar{q} \gamma \gamma $, $e^{+}e^{-}\to {Zh} \to \nu \bar{\nu} \gamma \gamma $, $e^{+}e^{-}\to {Zh} \to {l}^{+} {l}^{-} \gamma \gamma $ are considered. The observed data are found to be consistent with the expected background from standard physics processes. Limits on the branching fraction of the Higgs boson decay into two photons as a function of the Higgs mass are shown and a lower mass limit on a fermiophobic Higgs is derived.

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