Abstract
A study of the measurement of the two photon decay width times the branching ratio of the Standard Model Higgs boson with a mass of 120 GeV in photon–photon collisions is presented, assuming a γ γ integrated luminosity of 80 fb−1 in the high energy part of the spectrum. The analysis is based on the reconstruction of the Higgs events produced in the γ γ→H process, followed by the decay of the Higgs into a \(\mathrm{b}\bar{\mathrm{b}}\) pair. A statistical error of the measurement of the two-photon width, Γ(H→γ γ), times the branching ratio of the Higgs boson, BR \((\mathrm{H}\to \mathrm{b}\bar{\mathrm{b}})\) is found to be 2.1% for one year of data taking.
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Mönig, K., Rosca, A. Towards a measurement of the two-photon decay width of the Standard Model Higgs boson at a Photon Collider. Eur. Phys. J. C 57, 535–540 (2008). https://doi.org/10.1140/epjc/s10052-008-0765-5
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DOI: https://doi.org/10.1140/epjc/s10052-008-0765-5