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Measurement of the Two Photon Decay Width of the Higgs Boson at the TESLA Photon Collider

Aura Rosca·Klaus Moenig
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Abstract

We report on the accuracy of the measurement of the two photon decay width of a Higgs boson with the mass of 120 GeV at the TESLA Photon Collider, assuming a $γγ$ integrated luminosity of 80 fb$^{-1}$ in the hard part of the spectrum. The QCD radiative corrections for the quark pair background processes are taken into account by a reweighting procedure. We found that the product $Γ(\rm H \to γγ) \times \rm BR (\rm H \to \rm b \bar{\rm b})$ can be measured with the statistical error of 1.8% in one year of run.

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Aura Rosca, Klaus Moenig. 2003-10-02. Measurement of the Two Photon Decay Width of the Higgs Boson at the TESLA Photon Collider. https://arxiv.org/abs/hep-ph/0310036

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