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Isolating a light Higgs boson from the di-photon background at the LHC
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We compute the QCD corrections to the gluon fusion subprocess gg to gamma gamma, which forms an important component of the background to the search for a light Higgs boson at the LHC. We study the dependence of the improved pp to gamma gamma X background calculation on the factorization and renormalization scales, on various choices for photon isolation cuts, and on the rapidities of the photons. We also investigate ways to enhance the statistical significance of the Higgs signal in the di-photon channel.
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Cited by 2 Pith papers
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Two-loop helicity amplitudes for diphoton production with massive quark loop
Two-loop helicity amplitudes for diphoton production with a massive top quark loop are computed, providing new analytic results for gluon fusion and benchmark numbers for both channels.
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A measurement of the Higgs boson mass in the diphoton decay channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV
CMS measures the Higgs mass in H→γγ with 138 fb⁻¹ at 13 TeV as 125.13 ± 0.15 GeV, and 125.06 ± 0.14 GeV when combined with 7+8 TeV diphoton data.
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